Available Shapes
90MnCrV8 Steel
90MnCrV8 steel suppliers delivering to the whole of the Middle East. 90MnCrV8 is an oil hardening steel supplied in the annealed condition, available in round bar. With it’s suitability for through hardening it offers characteristics of good durability, wear resistance and holds a good cutting edge.
Applications
Analysis
Forging
Annealing
Annealing
Martempering
Tempering
Applications
Applications include dies, press tools, drawing punches, broaches, bushings, lathe centres, chuck jaws, master cavity sinking hobs, plug gauges, thread gauges, thread cutting tools, cams, and cloth cutting knives.
Analysis
| Carbon | 0.85-0.95% | Chromium | 0.20-0.50% |
| Manganese | 1.80-2.20% | Silicon | 0.10-0.40% |
| Sulphur | 0.03% max | Vanadium | 0.05-0.20% |
| Phosphorous | 0.03% max |
Forging
Heat the 90MnCrV8 steel slowly and uniformly to 1000°C. Forge within a temperature range of 1050-850°C reheating if required. Cool slowly, in a furnace to avoid setting up stresses.
Annealing
Heat the steel uniformly to 720°C, equalise, then furnace cool. (Hardness about 229 Brinell). Fully machined tools in grade 90MnCrV8 should be packed during annealing.
Annealing
Heat uniformly to 790-820°C until heated through. (If possible pre-heat the component at 300-500°C). Allow 30 minutes per 25 millimetre of section and quench immediately in oil.
Martempering
Martempering is an alternative hardening process which may be used with suitable salt bath equipment.
Tempering
Heat the component uniformly and thoroughly at the selected tempering temperatures and hold for at least one hour per 25mm of thickness.
| Temperature [°C] | 100 | 150 | 200 | 250 | 300 | 400 |
| Hardness [HRc] | 64 | 63 | 62 | 60 | 56 | 50 |
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