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Alloy Steel | NIFTY ALLOYS LLC

EN16T Alloy Steel | NIFTY ALLOYS LLC

Known as a commercially popular ‘all-rounder’, EN16 (605M36T) is a low alloyed manganese-molybdenum through-hardening steel. Offering high strength and tensile characteristics, EN16 displays similar mechanical properties to EN8 but benefits from improved frictional wear, shear loading, and shock resistance. EN16 is considered to be a viable alternative to other steel specifications containing chromium and nickel. EN16 (605M36T) also offers excellent ductility and is readily machinable.

EN16T Alloy Steel

Known as a commercially popular ‘all-rounder’, EN16 (605M36T) is a low alloyed manganese-molybdenum through-hardening steel. Offering high strength and tensile characteristics, EN16 displays similar mechanical properties to EN8 but benefits from improved frictional wear, shear loading, and shock resistance. EN16 is considered to be a viable alternative to other steel specifications containing chromium and nickel. EN16 (605M36T) also offers excellent ductility and is readily machinable.


Commonly used for general engineering applications EN16T is suitable for applications such as high tensile shafts, bolts and nuts, gears, pinions spindles and the like.

Applications

<table class="tablepress"><tbody><tr><td>Carbon</td><td>0.30-0.40%</td><td>Sulphur</td><td>0.050% max</td></tr><tr><td>Manganese</td><td>1.30-1.80%</td><td>Phosphorous</td><td>0.035% max</td></tr><tr><td>Molybdenum</td><td>0.20-0.35%</td><td></td><td></td></tr><tr><td>Silicon</td><td>0.10-0.35%</td></tr></tbody></table>

Analysis

Annealing

This steel grade is commonly supplied ready heat treated. If further heat treatment is required annealed EN16 should be heated slowly to 840-870°C and after adequate soaking at this temperature quench in oil. Temper as soon as tools reach room temperature.

Hardening

Heat carefully to a suitable temperature selected by reference to a tempering chart or table. Soak at the temperature for 2 hours per 25mm of ruling section, then allow to cool in air. Tempering between 250-375°C is not advised as tempering within this range will seriously reduce the impact value.

Tempering

<table class="tablepress"><thead><tr><th>Condition</th><th>TensileN/mm²</th><th>YieldN/mm²</th><th>Elongation%</th><th>IzodKCV J</th><th>HardnessBrinell</th></tr></thead><tbody><tr><td>R</td><td>700-850</td><td>525</td><td>17</td><td>28</td><td>201-255</td></tr><tr><td>S</td><td>775-925</td><td>585</td><td>15</td><td>50</td><td>223-277</td></tr><tr><td>T</td><td>850-1000</td><td>680</td><td>13</td><td>50</td><td>248-302</td></tr></tbody></table>(*subject to ruling section)

Typical Mechanical Properties

Heat treatment temperatures, including rate of heating, cooling and soaking times will vary due to factors such as the shape and size of each steel component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult your heat treatment provider for full guidance on heat treatment of alloy steel.

Heat Treatment

EN24T Alloy Steel | NIFTY ALLOYS LLC

EN24 is usually supplied in the finally heat-treated condition (quenched and tempered to “T” properties) up to a limiting ruling section of 250mm, which is superior to grades 605M36, 708M40 or 709M40 – see properties below. Please refer to our selection guide for comparisons.  EN24 is a very popular grade of through-hardening alloy steel, which is readily machinable in the “T” condition. (Refer to our machinability guide). EN24T is most suitable for the manufacture of parts such as heavy-duty axles and shafts, gears, bolts, and studs. EN24T can be further surface-hardened typically to 58-60 HRC by induction or nitride processes, producing components with enhanced wear resistance.  In addition to the above, EN24T is capable of retaining good impact values at low temperatures, hence it is frequently specified for harsh offshore applications such as hydraulic bolt tensioners and shipborne mechanical handling equipment.  EN24 sections larger than 250mm may still be available in the quenched and tempered condition, but it should be noted that a fall-off in mechanical properties may be apparent approaching the center of the bar.  It is therefore recommended that larger sizes are supplied in the annealed (softened) condition and that quenching and tempering are carried out after initial stock removal. This should achieve better mechanical properties towards the core.

EN24T Alloy Steel

EN24 is usually supplied in the finally heat-treated condition (quenched and tempered to “T” properties) up to a limiting ruling section of 250mm, which is superior to grades 605M36, 708M40 or 709M40 – see properties below. Please refer to our selection guide for comparisons.
EN24 is a very popular grade of through-hardening alloy steel, which is readily machinable in the “T” condition. (Refer to our machinability guide). EN24T is most suitable for the manufacture of parts such as heavy-duty axles and shafts, gears, bolts, and studs. EN24T can be further surface-hardened typically to 58-60 HRC by induction or nitride processes, producing components with enhanced wear resistance.
In addition to the above, EN24T is capable of retaining good impact values at low temperatures, hence it is frequently specified for harsh offshore applications such as hydraulic bolt tensioners and shipborne mechanical handling equipment.
EN24 sections larger than 250mm may still be available in the quenched and tempered condition, but it should be noted that a fall-off in mechanical properties may be apparent approaching the center of the bar.
It is therefore recommended that larger sizes are supplied in the annealed (softened) condition and that quenching and tempering are carried out after initial stock removal. This should achieve better mechanical properties towards the core.


EN24 steel is widely used in gears, pinions, shafts, and spindles in the automotive and machine tool industries. Production of parts such as locomotives, cranes, rolling mills, coal cutters, etc. Die casting and hot metal processing, such as mold support, racks and gears, needle angle die casting, Hot stamping of stamping dies, aluminum and steel stamping die beds, low temperature nuts, bolts and rivets. Widely used in plastics, rubber molds, hobs and combination mold buckles, mold stop pins, etc.

<table class="tablepress"><tbody><tr><td>Carbon</td><td>0.35-0.45%</td><td>Silicon</td><td>0.10-0.35%</td></tr><tr><td>Nickel</td><td>1.30-1.80%</td><td>Manganese</td><td>0.45-0.70%</td></tr><tr><td>Chromium</td><td>0.90-1.40%</td><td>Phosphorous</td><td>0.05% max</td></tr><tr><td>Molybdenum</td><td>0.20-0.35%</td><td>Sulphur</td><td>0.05% max</td></tr></tbody></table>

EN24T flat bar is available cut from large rectangular block, pieces can be cold sawn to your specific sizes.

EN24T Flat Bar

Preheat carefully, then raise temperature to 1000-1100°C for forging. Do not forge the steel below 850-1100°C. After forging cool slowly preferably in a furnace.

Forging

Heat slowly to 840-860°C, soak well and allow to cool with the furnace to 580°C, before withdrawing.

When parts are heavily machined, ground or otherwise subject to cold work, stress relieving will be beneficial prior to hardening. Heat carefully to 650-670°C, soak well before cooling in the furnace or in the air.

Stress Relieving

EN24T is supplied ready heat treated. If further heat treatment is required annealed EN24 should be heated slowly to 830-850°C and after adequate soaking at this temperature quench in oil. Temper as soon as tools reach room temperature. Hardening from a neutral salt bath, will reduce the possibility of scaling or decarburisation. Heat to 830-850°C and after equalisation quench in oil.

EN19T Alloy Steel | NIFTY ALLOYS LLC

EN19 is a chromium-molybdenum alloy steel. The chromium content provides good hardness penetration, and the molybdenum content ensures uniform hardness and high strength. EN19 chrome-molybdenum steel can be oil hardened to a relatively high level of hardness. The desirable properties of the EN19 include superior toughness, good ductility, and good wear resistance in the quenched and tempered conditions.  The EN19 cold finished annealed chromium-molybdenum alloy steel can be heated using various methods to yield a wide range of properties, hence it is often used as stock for forging as it has self-scaling properties. EN19 is capable of resisting creep in temperatures up to 538°C (1000°F) and maintaining its properties even after long exposure at comparatively high working temperatures.  The EN19 cold rolled rounds are available in the 4140 variant that contains 0.15-0.35 lead. The lead content improves machinability but has a significant effect on other desirable properties.

EN19T Alloy Steel

EN19 is a chromium-molybdenum alloy steel. The chromium content provides good hardness penetration, and the molybdenum content ensures uniform hardness and high strength. EN19 chrome-molybdenum steel can be oil hardened to a relatively high level of hardness. The desirable properties of the EN19 include superior toughness, good ductility, and good wear resistance in the quenched and tempered conditions.
The EN19 cold finished annealed chromium-molybdenum alloy steel can be heated using various methods to yield a wide range of properties, hence it is often used as stock for forging as it has self-scaling properties. EN19 is capable of resisting creep in temperatures up to 538°C (1000°F) and maintaining its properties even after long exposure at comparatively high working temperatures.
The EN19 cold rolled rounds are available in the 4140 variant that contains 0.15-0.35 lead. The lead content improves machinability but has a significant effect on other desirable properties.


AISI 4140 is used extensively in most industry sectors for a wide range of applications such as: Strippers bolts, axle shafts, tool bodies, bolsters holder blocks, stubs, crankshafts, tool holders, machinery parts and components, mold bases, couplings, connecting rods, tie rods, conveyor parts, ejectors, reamer bodies, chuck bodies, boring bars, crowbars, back up and support tooling, axles, collets, guides, logging parts, fixtures, piston rods, conveyor pins &amp; rolls, tracks shafts, jigs rams, ejector pins, ways sprockets, molds, hydraulic machinery shafts, forks slides, studs, cams, gears, guide rods, wear strips or parts, pump shafts, drill collars, sprockets, torsion bars, forming dies, ring gears, gear racks, chain links, lathe spindles, brake dies, adapters, valves, spindles, logging parts, trim dies, arbors, milling spindles, motor shafts, pinch bars, pins, pinions, nuts, pump shafts, tool holders, sockets

<table class="tablepress"><tbody><tr><td>Carbon</td><td>0.35-0.45%</td><td>Silicon</td><td>0.10-0.35%</td></tr><tr><td>Manganese</td><td>0.50-0.80%</td><td>Phosphorous</td><td>0.035% max</td></tr><tr><td>Chromium</td><td>0.90-1.50%</td><td>Sulphur</td><td>0.050% max</td></tr><tr><td>Molybdenum</td><td>0.20-0.40%</td><td></td></tr></tbody></table>

Pre heat carefully, then raise temperature to 850-1200°C for forging. Do not forge below 850°C. After forging cool slowly in still air.

Heat the EN19T slowly to 680-700°C. Cool in air.

This steel grade is commonly supplied ready heat treated. If further heat treatment is required annealed EN19 should be heated slowly to 860-890°C and after adequate soaking at this temperature quench in oil. Temper as soon as tools reach room temperature.

Heat carefully to a suitable temperature selected by reference to a tempering chart or table. Soak at the temperature for 2 hours per 25mm of ruling section, then allow to cool in air. Tempering between 250-375°C is not advised as tempering within this range will reduce the impact value.

Tampering

<table class="tablepress"><thead><tr><th>Condition</th><th>TensileN/mm²</th><th>YieldN/mm²</th><th>Elongation%</th><th>IzodKCV J</th><th>HardnessBrinell</th></tr></thead><tbody><tr><td>S</td><td>775-925</td><td>585</td><td>13</td><td>22</td><td>223-277</td></tr><tr><td>T</td><td>850-1000</td><td>680</td><td>13</td><td>50</td><td>248-302</td></tr><tr><td>U</td><td>925-1075</td><td>755</td><td>12</td><td>42</td><td>269-331</td></tr></tbody></table>(*subject to ruling section)

Typical Mechanical Properties*

EN26W Alloy Steel | NIFTY ALLOYS LLC

EN26 is a 2.5% nickel – chromium – molybdenum high hardenability, high tensile steel, generally supplied hardened and tempered in the tensile range 1000 – 1150 Mpa (Condition V) Rc 31 – 38. Characterized by high strength and toughness in very large sections – similar to EN25 but with higher carbon content, particularly suitable where high surface pressure exists. Prehardened and tempered EN26 can be further surface hardened by flame or induction hardening, and by nitriding. EN26 is used extensively in most industry sectors for applications requiring higher tensile and yield strength than 4140, 4340 or EN25 can provide. Typical uses are Axles, Connecting Rods, Die Holders, Hydraulic Shafts, Spindles, Motor Shafts, Pins, Rams, Rolls, Sockets, Tool Holders, Torsion Bars, etc.

EN26W Alloy Steel

EN26 is a 2.5% nickel – chromium – molybdenum high hardenability, high tensile steel, generally supplied hardened and tempered in the tensile range 1000 – 1150 Mpa (Condition V) Rc 31 – 38. Characterized by high strength and toughness in very large sections – similar to EN25 but with higher carbon content, particularly suitable where high surface pressure exists. Prehardened and tempered EN26 can be further surface hardened by flame or induction hardening, and by nitriding. EN26 is used extensively in most industry sectors for applications requiring higher tensile and yield strength than 4140, 4340 or EN25 can provide. Typical uses are Axles, Connecting Rods, Die Holders, Hydraulic Shafts, Spindles, Motor Shafts, Pins, Rams, Rolls, Sockets, Tool Holders, Torsion Bars, etc.


Highly stressed components of large cross-section for automotive, and general engineering applications, such as Shafts, connecting rods, pump and gear shafts, Die Holder Blocks, heavy forgings where optimum strength is required.

Heat slowly to 790-840°C. Hold until the temperature is uniform throughout the steel. Cool in a furnace.

EN26W is supplied ready heat treated. If further heat treatment is required annealed EN26 should be heated to 820-850°C and hold until the temperature is uniform through the section. Quench the EN26 steel in oil, water or polymer as required.

EN26 can be flame or induction hardened to obtain a good surface hardness.

Flame and Induction Hardening

<table class="tablepress"><thead><tr><th>Condition</th><th>TensileN/mm²</th><th>YieldN/mm²</th><th>Elongation%</th><th>IzodKCV J</th><th>HardnessBrinell</th></tr></thead><tbody><tr><td>U</td><td>925-1075</td><td>755</td><td>12</td><td>42</td><td>269-331</td></tr><tr><td>V</td><td>1000-1150</td><td>850</td><td>12</td><td>42</td><td>293-352</td></tr><tr><td>W</td><td>1075-1225</td><td>940</td><td>11</td><td>35</td><td>311-375</td></tr><tr><td>X</td><td>1150-1300</td><td>1020</td><td>10</td><td>28</td><td>341-401</td></tr><tr><td>Y</td><td>1225-1375</td><td>1095</td><td>10</td><td>21</td><td>363-429</td></tr><tr><td>Z</td><td>1550</td><td>1235</td><td>5</td><td>9</td><td>444</td></tr></tbody></table>

Typical Mechanical Properties *

EN30B Alloy Steel | NIFTY ALLOYS LLC

EN30B is a 4¼% nickel air/oil hardening steel. It achieves a good through hardness with high strength and toughness. It is capable of taking a good polish and is widely used as plastic Mould steel.

EN30B Alloy Steel

EN30B is a 4¼% nickel air/oil hardening steel. It achieves a good through hardness with high strength and toughness. It is capable of taking a good polish and is widely used as plastic Mould steel.


Gears, shafts, high duty bolts, high duty spindles and other demanding maximum strength, toughness or wear resistance. This steel is shocked in the annealed condition, to render machining possible, and must be heat treated as follows: harden in air (or oil for larger sections over 2½” diameters) from a temperature of 810°C / 830°C. Temper, if desired, at a suitable temperature nor exceeding 250°C.

<table class="tablepress"><tbody><tr><td>Carbon</td><td>0.26-0.34%</td><td>Silicon</td><td>0.10-0.35%</td></tr><tr><td>Nickel</td><td>3.90-4.30%</td><td>Manganese</td><td>0.40-0.60%</td></tr><tr><td>Chromium</td><td>1.10-1.40%</td><td>Phosphorous</td><td>0.050% max</td></tr><tr><td>Molybdenum</td><td>0.20-0.40%</td><td>Sulphur</td><td>0.050% max</td></tr></tbody></table>

Heat the steel carefully to the forging temperature of 1000-1100°C, soak well. After forging, cool slowly in a furnace to 100°C maximum and anneal immediately.

To obtain the softest condition heat carefully to 630-650°C. Soak for a minimum of 2 hours, then cool in the furnace or in air. It is advisable to repeat this treatment to obtain the best machining characteristics.

Where the machining operations have been severe, we recommend stress relieving EN30B alloy steel before finish machining and hardening. Heat carefully to 630-650°C then cool in the furnace or in still air.

Heat uniformly to 810-830°C and when thoroughly soaked at this temperature cool in air or quench in oil according to mass. Hardening from neutral salt baths will help to prevent scaling or decarburization and is strongly recommended. Pre heat at 300-400°C, raise to the hardening temperature of 810-830°C, quench into salt standing at 300-320°C. Withdraw and cool in air. Alternatively, tools may be vacuum hardened. If desired, hardened and tempered tools can be cyanide hardened to give a shallow carburized case to die surfaces with increased hardness values up to Rockwell C56-60. Temper as soon as tools are hand-warm.

Re heat to the relevant tempering temperature. Soak for at least 2 hours per 25mm of ruling section. Withdraw from the furnace and cool in still air. Tempering between 275-450°C is not advised as tempering within this range will reduce the impact value.<table class="tablepress"><tbody><tr><td><strong>Temperature [°C]</strong></td><td>150</td><td>250</td><td>350</td><td>450</td></tr><tr><td><strong>Hardness [HRc]</strong></td><td>49</td><td>47</td><td>44</td><td>38</td></tr></tbody></table>

EN31 Steel | NIFTY ALLOYS LLC

EN31 Steel Rod is an actual high-strength steel alloy that is tough and hardened before contributing and has nickel, chromium, molybdenum making it great tensile steel power, with decent ductility and uniform resistance. EN31 is an actual great strength alloy manufacturing steel. EN31 mechanical properties is a superiority high carbon alloy steel that propositions a high degree of rigidity with compressive power and scrapes resistance.

EN31 Steel





EN31 Steel Rod is an actual high-strength steel alloy that is tough and hardened before contributing and has nickel, chromium, molybdenum making it great tensile steel power, with decent ductility and uniform resistance. EN31 is an actual great strength alloy manufacturing steel. EN31 mechanical properties is a superiority high carbon alloy steel that propositions a high degree of rigidity with compressive power and scrapes resistance.





















Typical applications for EN31 steel include taps, gauges, swaging dies, ejector pins, balls, and roller bearings. It is good quality steel for wear-resisting machine parts and for press tools that do not merit a more complex quality.

<table class="tablepress"><tbody><tr><td>Carbon</td><td>0.90-1.20%</td><td>Manganese</td><td>0.30-0.75%</td></tr><tr><td>Chromium</td><td>1.00-1.60%</td><td>Sulphur</td><td>0.050% max</td></tr><tr><td>Silicon</td><td>0.10-0.35%</td><td>Phosphorous</td><td>0.050% max</td></tr></tbody></table>

Typical Analysis

Heat slowly and begin forging at 1000-1050°C. Allow sufficient time at the forging temperature for the steel to be thoroughly soaked through. Re heat as necessary and do not forge below 850°C. After forging EN31 steel, cool slowly preferably in a furnace.

EN31 is usually supplied in the annealed and machineable condition. Re-annealing will only be necessary if the steel has been forged or hardened. To anneal, heat the EN31 steel slowly to 800-810°C, soak well and allow to cool in the furnace.

When parts are to be heavily machined, stress relieving will be beneficial prior to hardening. Heat the EN31 carefully to 700°C, soak well and allow to cool in air.

Heat slowly to the hardening temperature of 800-820°C. Maintain until thoroughly soaked through. Plenty of time must be given for this soaking and then quench in oil.

Temper according to the purpose for which the tools are required, generally between 150°C and 300°C. Soak well at the selected temperature and soak for at least one hour per 25mm of total thickness. Cool slowly in air.<table class="tablepress"><tbody><tr><td><strong>Temperature [°C]</strong></td><td>150</td><td>200</td><td>250</td><td>300</td></tr><tr><td><strong>Hardness [HRc]</strong></td><td>63-62</td><td>62-61</td><td>60-59</td><td>57-56</td></tr></tbody></table>

EN36 Case Hardening Steel | NIFTY ALLOYS LLC

EN36 (655M13) is a nickel-chromium-molybdenum based case hardening engineering steel which is specifically designed for carburising. The addition of nickel increases shock resistance and toughness whilst the chromium increases the material’s hardenability giving it a uniformed hardness. Once hardened and carburised, EN36 can achieve a core strength of up to 1230 N/mm². EN36 (655M13) is used specifically in heavy duty and highly stressed applications due to its hardenability, toughness and high core strength. EN36 also offers excellent fatigue resistance.

EN36 Case Hardening Steel





EN36 (655M13) is a nickel-chromium-molybdenum based case hardening engineering steel which is specifically designed for carburising. The addition of nickel increases shock resistance and toughness whilst the chromium increases the material’s hardenability giving it a uniformed hardness. Once hardened and carburised, EN36 can achieve a core strength of up to 1230 N/mm². EN36 (655M13) is used specifically in heavy duty and highly stressed applications due to its hardenability, toughness and high core strength. EN36 also offers excellent fatigue resistance.





















EN36 (655M13) offers engineers a multitude of performance options based on the material’s delivery condition. Application examples include: Aircraft and automotive crankshafts Ball and roller bearings Highly stressed gears, collets and gudgeon pins Connecting rods with case hardened ends Heavy duty gears, ring gears Heavy duty bushes Couplings and shaft

<table class="tablepress"><tbody><tr><td>Carbon</td><td>0.12-0.18%</td><td>Chromium</td><td>0.60-1.10%</td></tr><tr><td>Manganese</td><td>0.30-0.60%</td><td>Nickel</td><td>3.00-3.75%</td></tr><tr><td>Silicon</td><td>0.10-0.35%</td><td>Sulphur</td><td>0.050% max</td></tr><tr><td></td><td></td><td>Phosphorous</td><td>0.050% max</td></tr></tbody></table>

Case hardening will give a hard wear resisting surface and a tough core strength EN36. Surfaces must be free from dirt and grease, and of low sulphur content. Case hardening can be carried out in salt baths with selected content depending on the type of salt and the depth of penetration required. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Time, temperatures and salt selection will be advised by your heat treatment provider.

Carburising / Case Hardening

<table class="tablepress"><thead><tr><th>TensileStrengthN/mm²</th><th>Elongation%</th><th>ImpactIzodJ</th><th>ImpactKCVJ</th><th>HardnessHB</th><th>Reduction of Area%</th></tr></thead><tbody><tr><td>1100</td><td>15</td><td>40</td><td>35</td><td>341</td><td>50</td></tr></tbody></table>(*blank case hardened – 19mm test piece)

If it is necessary to soften the EN36 for machining between the carburising and subsequent heat treatment stages, heat to 640-650°C. Soak at this temperature for 1 to 2 hours and cool slowly in the furnace or in air.

Softening

Heat treatment temperatures, including rate of heating, cooling and soaking times will vary due to factors such as the shape and size of each EN36 steel component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult your heat treatment provider for full guidance on heat treatment of EN36 case hardening steel.

Heat treatment

EN40B Nitriding Steel | NIFTY ALLOYS LLC

EN40B (722M24) is a chromium-molybdenum based engineering steel grade from Thames Stockholders which is often delivered in the hardened and tempered condition. It benefits from good wear resistance and high fatigue strength. This can increase a tensile strength of up to 1075 N/mm². Nitriding yields a hard and wear resistant casing resulting in an engineering material which delivers good fatigue and shock resistance. The nitriding process is usually performed at a comparatively low temperature which brings about a scale-free surface with minimal distortion.  EN40B (722M24) can function in atmospheres of up to 500 °C before any loss in surface hardness is noticed. EN40B is delivered in the hardened and tempered ‘T’ condition. This nitriding steel also offers a good combination of toughness and ductility. When supplied in the ‘T’ condition, EN40B is ideal for applications necessitating high creep resistance and high tensile strength.  EN40B (722M24) has become a widely used engineering material in industries such as automotive, textiles, and aerospace. It is also widely used by billet crankshaft manufacturers.

EN40B Nitriding Steel

EN40B (722M24) is a chromium-molybdenum based engineering steel grade from Thames Stockholders which is often delivered in the hardened and tempered condition. It benefits from good wear resistance and high fatigue strength. This can increase a tensile strength of up to 1075 N/mm². Nitriding yields a hard and wear resistant casing resulting in an engineering material which delivers good fatigue and shock resistance. The nitriding process is usually performed at a comparatively low temperature which brings about a scale-free surface with minimal distortion.
EN40B (722M24) can function in atmospheres of up to 500 °C before any loss in surface hardness is noticed. EN40B is delivered in the hardened and tempered ‘T’ condition. This nitriding steel also offers a good combination of toughness and ductility. When supplied in the ‘T’ condition, EN40B is ideal for applications necessitating high creep resistance and high tensile strength.
EN40B (722M24) has become a widely used engineering material in industries such as automotive, textiles, and aerospace. It is also widely used by billet crankshaft manufacturers.


Typical applications include connecting rods, extruders, valve stems, dies, ring &amp; plunger, Screw and barrel for injection moulding machines

<table class="tablepress"><tbody><tr><td>Carbon</td><td>0.35-0.45%</td><td>Manganese</td><td>0.65% max</td></tr><tr><td>Silicon</td><td>0.10-0.45%</td><td>Nickel</td><td>0.40% max</td></tr><tr><td>Chromium</td><td>1.40-1.80%</td><td>Phosphorous</td><td>0.05% max</td></tr><tr><td>Molybdenum</td><td>0.10-0.25%</td><td>Sulphur</td><td>0.05% max</td></tr><tr><td>Aluminium</td><td>0.90-1.30%</td><td></td><td></td></tr></tbody></table>

EN41 is supplied ready heat treated. If further heat treatment is required annealed EN41 should be heated slowly to 870-930°C and after adequate soaking at this temperature quench in oil/polymer or water. Temper as soon as tools reach room temperature.

Heat carefully to a suitable temperature selected by reference to a tempering chart or table (usually between 580-700°C). Soak at the temperature for 2 hours per 25mm of ruling section, then allow to cool in the air.

<table class="tablepress"><thead><tr><th>Condition</th><th>TensileN/mm²</th><th>YieldN/mm²</th><th>Elongation%</th><th>IzodKCV J</th><th>HardnessBrinell</th></tr></thead><tbody><tr><td>R</td><td>700-850</td><td>525</td><td>17</td><td>50</td><td>201-255</td></tr><tr><td>S</td><td>775-925</td><td>585</td><td>15</td><td>50</td><td>223-277</td></tr></tbody></table>(*subject to ruling section)

Heat treatment temperatures, including rate of heating, cooling and soaking times will vary due to factors such as the shape and size of each component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult your heat treatment provider for full guidance on heat treatment of EN41 alloy nitriding steel.

605M36 Alloy Steel | NIFTY ALLOYS LLC

Known as a commercially popular ‘all-rounder’, EN16 (605M36T) is a low alloyed manganese-molybdenum through-hardening steel. Offering high strength and tensile characteristics, EN16 displays similar mechanical properties to EN8 but benefits from improved frictional wear, shear loading and shock resistance. EN16 is considered to be a viable alternative to other steel specifications containing chromium and nickel. EN16 (605M36T) also offers excellent ductility and is readily machinable. The equivalent British specification for EN16 is 605M36T

605M36 Alloy Steel

Known as a commercially popular ‘all-rounder’, EN16 (605M36T) is a low alloyed manganese-molybdenum through-hardening steel. Offering high strength and tensile characteristics, EN16 displays similar mechanical properties to EN8 but benefits from improved frictional wear, shear loading and shock resistance. EN16 is considered to be a viable alternative to other steel specifications containing chromium and nickel. EN16 (605M36T) also offers excellent ductility and is readily machinable. The equivalent British specification for EN16 is 605M36T


EN16 (605M36T) is a versatile and popular engineering steel and therefore has a wide range of commercial applications. Examples include: Connection rods, pistons, high load couplings Hubs, bolts, shafts and axles Crankshafts, lifting gear Applications requiring high shock resistance

<table class="tablepress"><tbody><tr><td>Carbon</td><td>0.32-0.40%</td><td>Phosphorous</td><td>0.035% max</td></tr><tr><td>Manganese</td><td>1.30-1.70%</td><td>Sulphur</td><td>0.040% max</td></tr><tr><td>Silicon</td><td>0.10-0.40%</td><td></td><td></td></tr><tr><td>Molybdenum</td><td>0.22-0.32%</td><td></td><td></td></tr></tbody></table>

Heat the steel slowly to 640-660°C, then cool in air.

605M36 is commonly supplied ready heat treated at ‘T’ condition. If further heat treatment is required annealed 605M36 should be heated slowly to 840-870°C and after adequate soaking at this temperature quench in oil. Temper as soon as tools reach room temperature.

Heat the 605M36 carefully to a suitable temperature selected by reference to a tempering chart or table, soak at the temperature for two hours per 25mm of ruling section, then all to cool in the air. Tempering between 250-375°C is not advised as tempering within this range will seriously reduce the impact value.

<table class="tablepress"><thead><tr><th>Condition</th><th>TensileN/mm²</th><th>YieldN/mm²</th><th>Elongation%</th><th>IzodKCV J</th><th>HardnessBrinell</th></tr><tr><td align="center">R</td><td align="center">700-850</td><td align="center">480</td><td align="center">16</td><td align="center">28</td><td align="center">201-255</td></tr></thead><tbody><tr><td>S</td><td>775-925</td><td>585</td><td>14</td><td>16</td><td>223-277</td></tr><tr><td>T</td><td>850-1000</td><td>650</td><td>13</td><td>35</td><td>248-302</td></tr></tbody></table>(*subject to ruling section)

EN41 Nitriding Steel | NIFTY ALLOYS LLC

En41B Alloy Steel is chromium-aluminum-molybdenum nitriding steel usually supplied in hardened and tempered conditions. It is also called nitrating steel. In nitrating treatment, it is hardened to a certain depth according to the application to improve the wear resistance and improve the impact load on the material. EN40B.

EN41 Nitriding Steel

En41B Alloy Steel is chromium-aluminum-molybdenum nitriding steel usually supplied in hardened and tempered conditions. It is also called nitrating steel. In nitrating treatment, it is hardened to a certain depth according to the application to improve the wear resistance and improve the impact load on the material. EN40B.


<p class="ae-acf-repeater-tab-title ae-acf-repeater-tab-desktop-title" data-tab="2">Typical applications include connecting rods, extruders, valve stems, dies, ring &amp; plunger, Screw and barrel for injection moulding machines</p>

709M40 Alloy Steel | NIFTY ALLOYS LLC

709M40 is a 1% Cr-Mo medium hardenability general purpose high tensile steel. It is generally supplied in the Hardened and Tempered condition in the tensile range of 850 – 1000Mpa (T Condition) but can be heat treated to 700 – 1200Mpa dependent on section size (R – W Condition). This alloy is used in most industry sectors for a wide variety of applications. Typical uses include Drive shafts, couplings, bolts and gears, together with many surface and sub-surface components in the oil and gas industries. This grade also has reasonably good impact properties at low temperatures and can be good for some elevated temperature uses. 709M40 can be further surface hardened by either flame or induction hardening methods, giving case hardnesses in excess of 50 HRc.

709M40 Alloy Steel

709M40 is a 1% Cr-Mo medium hardenability general purpose high tensile steel. It is generally supplied in the Hardened and Tempered condition in the tensile range of 850 – 1000Mpa (T Condition) but can be heat treated to 700 – 1200Mpa dependent on section size (R – W Condition). This alloy is used in most industry sectors for a wide variety of applications. Typical uses include Drive shafts, couplings, bolts and gears, together with many surface and sub-surface components in the oil and gas industries. This grade also has reasonably good impact properties at low temperatures and can be good for some elevated temperature uses. 709M40 can be further surface hardened by either flame or induction hardening methods, giving case hardnesses in excess of 50 HRc.


<p class="ae-acf-repeater-tab-title ae-acf-repeater-tab-desktop-title" data-tab="8"><span style="font-size: 16px;">Axels shafts, crankshafts, connecting rods, gears, high tensile bolts and studs, propeller shafts joints, rifle barrels and breech mechanisms for small arms parts, induction hardened trackpins.</span></p>

<table class="tablepress"><tbody><tr><td>Carbon</td><td>0.36-0.44%</td><td>Chromium</td><td>0.90-1.50%</td></tr><tr><td>Manganese</td><td>0.70-1.00%</td><td>Molybdenum</td><td>0.25-0.35%</td></tr><tr><td>Silicon</td><td>0.10-0.35%</td><td>Sulphur</td><td>0.040% max</td></tr><tr><td></td><td></td><td>Phosphorous</td><td>0.035% max</td></tr></tbody></table>

Preheat the steel carefully, then raise temperature to 850-1200°C for forging. Do not forge below 850°C. After forging 709M40, cool slowly in still air.

Heat the steel slowly to 680-700°C. Cool in air.

709M40 is commonly supplied ready heat treated at ‘T’ condition. If further heat treatment is required annealed 709M40 should be heated slowly to 860-890°C and after adequate soaking at this temperature quench in oil. Temper as soon as tools reach room temperature.

Heat the component carefully to a suitable temperature selected by reference to a tempering chart or table, soak at the temperature for two hours per 25mm of ruling section, then allow to cool in air. Tempering between 250-375°C is not advised as tempering within this range will seriously reduce the impact value.

708M40 Alloy Steel | NIFTY ALLOYS LLC

Nifty Alloys LLC are suppliers hot-rolled black bar. 708M40 is a similar grade to 709M40 but with a variation in the molybdenum content. As a high quality alloy steel specification 708M40 is usually supplied heat-treated to ‘T’ condition. This grade offers good ductility and shock resisting properties combined with resistance to wear. With these characteristics, it is a popular high tensile engineering steel with a tensile of 850°-1000N/mm². At low temperatures it has reasonably good impact properties. It is also suitable for a variety of elevated temperature applications.

708M40 Alloy Steel

Nifty Alloys LLC are suppliers hot-rolled black bar. 708M40 is a similar grade to 709M40 but with a variation in the molybdenum content. As a high quality alloy steel specification 708M40 is usually supplied heat-treated to ‘T’ condition. This grade offers good ductility and shock resisting properties combined with resistance to wear. With these characteristics, it is a popular high tensile engineering steel with a tensile of 850°-1000N/mm². At low temperatures it has reasonably good impact properties. It is also suitable for a variety of elevated temperature applications.


708M40T is now widely used in areas such as the motor, oil and gas industries. Suitable for components such as shafts, gears, spindles, bolts, studs and a wide variety of applications where a good quality high tensile steel grade is required.

<table class="tablepress"><tbody><tr><td>Carbon</td><td>0.36-0.44%</td><td>Chromium</td><td>0.90-1.20%</td></tr><tr><td>Manganese</td><td>0.70-1.00%</td><td>Molybdenum</td><td>0.15-0.25%</td></tr><tr><td>Silicon</td><td>0.10-0.35%</td><td>Sulphur</td><td>0.040% max</td></tr><tr><td></td><td></td><td>Phosphorous</td><td>0.035% max</td></tr></tbody></table>

Preheat the steel carefully, then raise temperature to 850-1200°C for forging. Do not forge below 850°C. After forging this alloy steel, cool slowly in still air.

This grade is commonly supplied ready heat treated. If further heat treatment is required annealed 708M40 should be heated slowly to 860-890°C and after adequate soaking at this temperature quench in oil. Temper as soon as tools reach room temperature.

<table class="tablepress"><thead><tr><th>Condition</th><th>TensileN/mm²</th><th>YieldN/mm²</th><th>Elongation%</th><th>IzodKCV J</th><th>HardnessBrinell</th></tr></thead><tbody><tr><td>S</td><td>775-925</td><td>585</td><td>14</td><td>16</td><td>223-277</td></tr><tr><td>T</td><td>850-1000</td><td>650</td><td>13</td><td>35</td><td>248-302</td></tr><tr><td>U</td><td>925-1075</td><td>755</td><td>12</td><td>42</td><td>269-331</td></tr></tbody></table>(*subject to ruling section)

817M40 Alloy Steel | NIFTY ALLOYS LLC

EN24/817M40 steel is a common nickel-molybdenum alloy steel according to BS standard. It is high-strength steel and has good comprehensive mechanical properties. EN24/817M40 steel is usually supplied in the final heat-treated condition which is widely used in the manufacture of the camshaft and connecting rod of engine parts, poor processability, belongs to the typical difficult-to-machine materials.

817M40 Alloy Steel





EN24/817M40 steel is a common nickel-molybdenum alloy steel according to BS standard. It is high-strength steel and has good comprehensive mechanical properties. EN24/817M40 steel is usually supplied in the final heat-treated condition which is widely used in the manufacture of the camshaft and connecting rod of engine parts, poor processability, belongs to the typical difficult-to-machine materials.





















<table class="tablepress"><tbody><tr><td>Carbon</td><td>0.36-0.44%</td><td>Nickel</td><td>1.30-1.70%</td></tr><tr><td>Manganese</td><td>0.45-0.70%</td><td>Chromium</td><td>1.00-1.40%</td></tr><tr><td>Silicon</td><td>0.10-0.35%</td><td>Molybdenum</td><td>0.20-0.35%</td></tr><tr><td>Phosphorous</td><td>0.035% max</td><td></td><td></td></tr><tr><td>Sulphur</td><td>0.040% max</td><td></td><td></td></tr></tbody></table>

817M40T flat bar is available cut from large rectangular block, pieces can be sawn to your specific sizes.

Flat Bar

Preheat the steel carefully, then raise temperature to 1000-1100°C for forging. Do not forge below 850°C. After forging this alloy steel, cool slowly preferably in a furnace.

Heat the 817M40T slowly to 840-860°C, soak well and allow to cool with the furnace to 580°C, before withdrawing.

817M40T is commonly supplied ready heat treated. If further heat treatment is required annealed 817M40 should be heated slowly to 830-850°C and after adequate soaking at this temperature quench in oil. Temper as soon as tools reach room temperature. Hardening from a neutral salt bath, will reduce the possibility of scaling or decarburisation. Heat to 830-850°C and after equalisation quench in oil.

826M40 Alloy Steel | NIFTY ALLOYS LLC

826M40 is a 2.5% nickel – chromium – molybdenum high hardenability, high tensile steel, generally supplied hardened and tempered in the tensile range 1000 – 1150 Mpa (Condition V) Rc 31 – 38. Characterized by high strength and toughness in very large sections – similar to EN25 but with higher carbon content, particularly suitable where high surface pressure exists. Pre hardened and tempered EN26 can be further surface hardened by flame or induction hardening, and by nitriding

826M40 Alloy Steel

826M40 is a 2.5% nickel – chromium – molybdenum high hardenability, high tensile steel, generally supplied hardened and tempered in the tensile range 1000 – 1150 Mpa (Condition V) Rc 31 – 38. Characterized by high strength and toughness in very large sections – similar to EN25 but with higher carbon content, particularly suitable where high surface pressure exists. Pre hardened and tempered EN26 can be further surface hardened by flame or induction hardening, and by nitriding


826M40 alloy steels are used for Axles, Connecting Rods, Die Holders, Hydraulic Shafts, Spindles, Motor Shafts, Pins, Rams, Rolls, Sockets, Tool Holders, Torsion Bars etc. <a class="inner-a" href="https://niftyalloys.com/product/817m40-alloy-steel/">817M40T</a>.

<table class="tablepress"><tbody><tr><td>Carbon</td><td>0.36-0.44%</td><td>Nickel</td><td>2.30-2.80%</td></tr><tr><td>Manganese</td><td>0.45-0.70%</td><td>Chromium</td><td>0.50-0.80%</td></tr><tr><td>Silicon</td><td>0.10-0.35%</td><td>Molybdenum</td><td>0.45-0.65%</td></tr><tr><td>Phosphorous</td><td>0.035% max</td><td></td><td></td></tr><tr><td>Sulphur</td><td>0.040% max</td><td></td><td></td></tr></tbody></table>

To forge pre heat the 826M40 carefully, then raise the temperature to 1150-1200°C and hold at temperature until thoroughly soaked and suitable to forge. Do not forge below 850°C. After forging the 826M40 should be cooled slowly.

Heat the steel slowly to 790-840°C. Hold until the temperature is uniform throughout the steel. Cool in a furnace.

826M40W is supplied ready heat treated. If further heat treatment is required annealed 826M40 should be heated to 820-850°C and hold until the temperature is uniform through the section. Quench the 826M40 steel in oil, water or polymer as required.

826M40 can be flame or induction hardened to achieve a good surface hardness.

Heat the 826M40 component to the required tempering temperature between 450°/660°C and thoroughly soak for two hours per 25mm thickness of section, cool in still air.

835M30 Alloy Steel | NIFTY ALLOYS LLC

835M30 is a low alloy steel that combines high strength and hardenability with good dimensional stability, making it an excellent alloy for large section mechanical parts or tooling of complex shapes subject to high stresses. In addition to aerospace structural applications, it is also suitable for mold for manufacturing plastic materials and bolsters for drop stamps. 835M30 is supplied in either the Normalised &amp; Tempered or Hardened &amp; Tempered condition, but can also be heat treated with an additional sub-zero stage for increased strength and hardness.

835M30 Alloy Steel

835M30 is a low alloy steel that combines high strength and hardenability with good dimensional stability, making it an excellent alloy for large section mechanical parts or tooling of complex shapes subject to high stresses. In addition to aerospace structural applications, it is also suitable for mold for manufacturing plastic materials and bolsters for drop stamps. 835M30 is supplied in either the Normalised &amp; Tempered or Hardened &amp; Tempered condition, but can also be heat treated with an additional sub-zero stage for increased strength and hardness.


<b>In Engineering:</b> ultra high tensile applications, shafts, gears, bolts, spline shafts, crusher shafts, eccentric shafts, hard wearing bushes and high impact pistons <b>In mining:</b> rock drill, knock off bits, mill hammers, cyclone plates, high tensile mechanical and thermal shock applications <b>In Tooling:</b> plastic extrusion dies, die bolster rings and punches

<table class="tablepress"><tbody><tr><td>Carbon</td><td>0.26-0.34%</td><td>Silicon</td><td>0.10-0.35%</td></tr><tr><td>Nickel</td><td>3.90-4.30%</td><td>Manganese</td><td>0.45-0.70%</td></tr><tr><td>Chromium</td><td>1.10-1.40%</td><td>Phosphorous</td><td>0.050% max</td></tr><tr><td>Molybdenum</td><td>0.20-0.35%</td><td>Sulphur</td><td>0.050% max</td></tr></tbody></table>

Heat the steel carefully to the forging temperature of 1000-1100°C, soak well. After forging, cool slowly in a furnace to 100°C maximum and anneal immediately thereafter.

To obtain the softest condition heat carefully to 630-650°C. Soak for a minimum of 2 hours, then cool in the furnace / in air. It is advisable to repeat this treatment to obtain the best machining.

Where the machining operations have been severe, we recommend stress relieving 835M30 steel before finish machining and hardening. Heat carefully to 630-650°C then cool in the furnace or in air.

Heat uniformly to 810-830°C and when thoroughly soaked at this temperature cool in air or quench in oil according to mass. Hardening from neutral salt baths will help to prevent scaling or decarburisation and is strongly recommended. Pre heat at 300-400°C, raise to the hardening temperature of 810-830°C, quench into salt standing at 300-320°C. Withdraw and cool in air. As an alternative tools may be vacuum hardened. If desired the hardened and tempered tools can be cyanide hardened which gives a shallow carburised case to die surfaces with increased hardness values up to Rockwell C56-60. Temper as soon as tools are at hand-warm temperature.

Tempering between 275-450°C is not advised as tempering within this range will reduce the impact value. Re heat to the relevant tempering temperature. Soak for at least 2 hours per 25mm of ruling section. Withdraw from the furnace and cool in still air.<table class="tablepress"><tbody><tr><td><strong>Temperature [°C]</strong></td><td>150</td><td>250</td><td>350</td><td>450</td></tr><tr><td><strong>Hardness [HRc]</strong></td><td>49</td><td>47</td><td>44</td><td>38</td></tr></tbody></table>

535A99 Through Hardening Steel | NIFTY ALLOYS LLC

535A99 is a very high strength steel alloy that is hardened and tempered before supplying and has nickel, chromium, molybdenum making its high tensile steel strength, with good ductility and wear resistance. With relatively good impact properties at low temperatures, 535A99 is also suitable for a variety of elevated temperature applications. 535A99 round bars have good internal strength and high external strength, which makes them highly wear-resistant. 535A99 steel round bars offer a good combination of ductility, strength, and wear resistance. 535A99 is a very high-strength alloy engineering steel.  &nbsp;  Related Specifications 100Cr6, 2258, 100C6, 100Cr6, SAE AISI E52100

535A99 Through Hardening Steel

535A99 is a very high strength steel alloy that is hardened and tempered before supplying and has nickel, chromium, molybdenum making its high tensile steel strength, with good ductility and wear resistance. With relatively good impact properties at low temperatures, 535A99 is also suitable for a variety of elevated temperature applications. 535A99 round bars have good internal strength and high external strength, which makes them highly wear-resistant. 535A99 steel round bars offer a good combination of ductility, strength, and wear resistance. 535A99 is a very high-strength alloy engineering steel.
&nbsp;
Related Specifications 100Cr6, 2258, 100C6, 100Cr6, SAE AISI E52100


Applications for 535A99 steel include ejector pins, ball and roller bearings, gauges, taps and swaging dies. It is a good quality steel for wear resisting machine parts and for press tools which do not merit a more complex quality steel grade.

<table class="tablepress"><tbody><tr><td>Carbon</td><td>0.95-1.10%</td><td>Manganese</td><td>0.40-0.70%</td></tr><tr><td>Chromium</td><td>1.20-1.60%</td><td>Sulphur</td><td>0.040% max</td></tr><tr><td>Silicon</td><td>0.10-0.35%</td><td>Phosphorous</td><td>0.035% max</td></tr><tr><td></td><td></td></tr></tbody></table>

Heat the steel slowly and begin forging at 1000-1050°C. Allow sufficient time at the forging temperature for the component to be thoroughly soaked through. Re heat the component as necessary and do not forge below 850°C. After forging 535A99 furnace cool slowly.

535A99 is commonly supplied in the annealed machineable condition. Re-annealing will only be necessary if the steel has been forged or hardened. To anneal, heat the 535A99 steel slowly to 800-810°C, soak well and allow furnace cool in the.

When parts are to be heavily machined, stress relieving will be beneficial prior to hardening. Heat the steel carefully to 700°C, soak well and allow to air cool.

Heat slowly to the hardening temperature of 800-820°C. Maintain until thoroughly soaked through. Plenty of time must be given for this soaking, then oil quench.

emper according to the purpose for which the tools are required, generally between 150°C and 300°C. Soak well at the selected temperature and soak for at least one hour per 25mm of total thickness. Air cool slowly.<table class="tablepress"><tbody><tr><td><strong>Temperature [°C]</strong></td><td>150</td><td>200</td><td>250</td><td>300</td></tr><tr><td><strong>Hardness [HRc]</strong></td><td>63-62</td><td>62-61</td><td>60-59</td><td>57-56</td></tr></tbody></table>

655M13 Case Hardening Steel | NIFTY ALLOYS LLC

655M13 is a nickel-chromium-molybdenum based case hardening engineering steel which is specifically designed for carburising. The addition of nickel increases shock resistance and toughness whilst the chromium increases the material’s hardenability giving it a uniformed hardness. Once hardened and carburised, EN36 can achieve a core strength of up to 1230 N/mm². EN36 (655M13) is used specifically in heavy duty and highly stressed applications due to its hardenability, toughness and high core strength. EN36 also offers excellent fatigue resistance.

655M13 Case Hardening Steel





655M13 is a nickel-chromium-molybdenum based case hardening engineering steel which is specifically designed for carburising. The addition of nickel increases shock resistance and toughness whilst the chromium increases the material’s hardenability giving it a uniformed hardness. Once hardened and carburised, EN36 can achieve a core strength of up to 1230 N/mm². EN36 (655M13) is used specifically in heavy duty and highly stressed applications due to its hardenability, toughness and high core strength. EN36 also offers excellent fatigue resistance.





















655M13 offers engineers a multitude of performance options based on the material’s delivery condition. Application examples include: Aircraft and automotive crankshafts Ball and roller bearings Highly stressed gears, collets and gudgeon pins Connecting rods with case hardened ends Heavy duty gears, ring gears Heavy duty bushes Couplings and shaft

<table class="tablepress"><tbody><tr><td>Carbon</td><td>0.10-0.16%</td><td>Nickel</td><td>3.00-3.75%</td></tr><tr><td>Manganese</td><td>0.35-0.60%</td><td>Chromium</td><td>0.70-1.00%</td></tr><tr><td>Silicon</td><td>0.10-0.35%</td><td>Sulphur</td><td>0.040% max</td></tr><tr><td></td><td></td><td>Phosphorous</td><td>0.035% max</td></tr></tbody></table>

Carburising and case hardening will give a hard wear resisting surface and a tough core strength to 655M13. Ensure that surfaces are free from dirt and grease, and of low sulphur content. Case hardening can be carried out in salt baths with selected content depending on the type of salt and the depth of penetration required. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Time, temperatures and salt selection will be advised by your heat treatment provider.

If it is necessary to soften the 655M13 for machining between the carburising and subsequent heat treatment stages, heat to 640-650°C. Soak at this temperature for one to two hours and cool slowly in the furnace or in air.

Heat treatment temperatures, including rate of heating, cooling and soaking times will vary due to factors such as the shape and size of each 655M13 steel component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult your heat treatment provider for full guidance on heat treatment of 655M13 case hardening steel.

722M24 Nitriding Steel | NIFTY ALLOYS LLC

722M24 is a chromium-molybdenum-based engineering steel grade from Thames Stockholders which is often delivered in hardened and tempered condition. It benefits from good wear resistance and high fatigue strength. This can increase the tensile strength by up to 1075 N/mm². Nitriding yields a hard and wears resistant casing resulting in an engineering material that delivers good fatigue and shock resistance. The nitriding process is usually performed at a comparatively low temperature which brings about a scale-free surface with minimal distortion.  722M24 can function in atmospheres of up to 500 °C before any loss in surface hardness is noticed. 722M24 is delivered in the hardened and tempered ‘T’ condition. This nitriding steel also offers a good combination of toughness and ductility. When supplied in the ‘T’ condition, 722M24 is ideal for applications necessitating high creep resistance and high tensile strength.  722M24 has become a widely used engineering material in industries such as automotive, textiles, and aerospace. It is also widely used by billet crankshaft manufacturers.

722M24 Nitriding Steel

722M24 is a chromium-molybdenum-based engineering steel grade from Thames Stockholders which is often delivered in hardened and tempered condition. It benefits from good wear resistance and high fatigue strength. This can increase the tensile strength by up to 1075 N/mm². Nitriding yields a hard and wears resistant casing resulting in an engineering material that delivers good fatigue and shock resistance. The nitriding process is usually performed at a comparatively low temperature which brings about a scale-free surface with minimal distortion.
722M24 can function in atmospheres of up to 500 °C before any loss in surface hardness is noticed. 722M24 is delivered in the hardened and tempered ‘T’ condition. This nitriding steel also offers a good combination of toughness and ductility. When supplied in the ‘T’ condition, 722M24 is ideal for applications necessitating high creep resistance and high tensile strength.
722M24 has become a widely used engineering material in industries such as automotive, textiles, and aerospace. It is also widely used by billet crankshaft manufacturers.


Alloy Steel: Properties, Processing and Applications      Alloy steel is a class of steel that, in addition to carbon, is alloyed with other elements, ranging from 1 wt.% to 50 wt.%, which are used to enhance the material’s various properties. These elements commonly include manganese, nickel, chromium, molybdenum, vanadium, silicon, and boron. Less common elements include aluminum, cobalt, copper, cerium, niobium, titanium, tungsten, tin, zinc, lead, and zirconium.  If you do not find the alloy steel grade you require on our website, please contact our sales team who may assist you with your inquiry.

Alloy Steel

Alloy Steel: Properties, Processing and Applications




Alloy steel is a class of steel that, in addition to carbon, is alloyed with other elements, ranging from 1 wt.% to 50 wt.%, which are used to enhance the material’s various properties. These elements commonly include manganese, nickel, chromium, molybdenum, vanadium, silicon, and boron. Less common elements include aluminum, cobalt, copper, cerium, niobium, titanium, tungsten, tin, zinc, lead, and zirconium.
If you do not find the alloy steel grade you require on our website, please contact our sales team who may assist you with your inquiry.

EN31 Steel

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