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| C 0.90-1.20% | Si 0.10-0.35% | MN 0.30-0.75% | S 0.050% max | P 0.050% max | Cr 1.00-1.60% |
Virat Special Steels is the biggest & leading Supplier & Stockiest of EN 31 in India.
EN 31 is a excellent high carbon alloy steel which offers a high measure of hardness with compressive strength and abrasion resistance.
This Grade is quite often used for wear resisting machine constituents and for press instruments which don't advantage a extra complex satisfactory.
Standard hiqh-speed steel qrade. Itswell-balanced alloy composition forms the basis of its high_touqhn-essand good clllting edge retention, rendenng it $uitable for a large variety of appllcatons.
| Thermal Conductivity at °C | 20 | 350 | 700 |
| W/(m*K) | 44.5 | 45.0 | 46.0 |
Acceptable for many automobile applications such as heavy duty gear, shaft, pinion, camshafts, gudgeon pins. / Machining components.
| Soft annealing °C | Cooling | Hardness HB |
|---|---|---|
| 780-800 | Furnace | max. 207 |
| Stress-relief annealing °C | Cooling |
|---|---|
| 600 - 650 | Furnace |
| 1st pre-heating °C | 2nd and 3rd | Hardening °C | Quenching | Tempering °C | Hardness after Teperature HRC |
|---|---|---|---|---|---|
| up to approx. 400 in an air-circulating furnace | 800 and 900 | 800-820 | 810 °C Oil ,Quench | at least twice 150-200 | 61 – 63 |
