Available Shapes
45NiCrMo16 / 1.2767 Steel
45NiCrMo16 / 1.2767 steel suppliers, delivering to the whole of the Middle East.Nifty Alloys LLC are suppliers of round, flat and plate. 45NiCrMo16 is a 4 1/4% nickel oil hardening steel. It is a good quality steel that achieves high impact with compressive strength. It is suitable for applications demanding extra wear resistance. With characteristics of good full hardenability, good polishability and excellent toughness this steel grade is commonly used for plastic mould applications.
Applications
Analysis
Forging
Annealing
Stress Relieving
Hardening
Tempering
Applications
Typical applications and components include plastic moulds, shear blades, cutting tools, drawing jaws and coining tools.
Analysis
| Carbon | 0.40-0.50% | Chromium | 1.20-1.50% |
| Manganese | 0.20-0.50% | Silicon | 0.10-0.40% |
| Sulphur | 0.03% max | Nickel | 3.80-4.30% |
| Phosphorous | 0.03% max | Molybdenum | 0.15-0.35% |
Forging
Heat slowly and uniformly to 1050°C. Re heat the steel as necessary and avoid working below 850°C After forging the steel cool slowly in furnace or a thermoinsulating material.
Annealing
As this grade of steel is supplied in the annealed and machineable condition re-annealing will only be necessary if the steel has been forged or hardened. Heat the component uniformly to 630-650°C. Soak well then cool slowly in the furnace to approximately 600°C and cool in air.
Stress Relieving
When components are heavily machined, stabilising is recommended just before finish machining in order to relieve machining strains. Heat to approx 650°C and soak well, allow to cool in air.
Hardening
Pre heat the tool slowly and uniformly to 650-700°C and thoroughly soak. Continue heating to the final hardening temperature of 840-870°C and allow the component to be heated through. Quench the component in oil or cool in air.
Tempering
Slowly heat the 45NiCrMo16 component uniformly and thoroughly to the selected tempering temperatures and hold at heat for one hour per 25mm of thickness but for a minimum of two hours. Cool in air. 45NiCrMo16 steel can be hardened by vacuum furnace and gas quench process.
| Temperature [°C] | 100 | 200 | 300 | 400 | 500 | 600 |
| Hardness [HRc] | 56 | 54 | 50 | 46 | 42 | 38 |
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