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steel grade :
50Mn18Cr4WN
standard: JB 1268-2002
50Mn18Cr4WN chemical composition:
C 0.40~0.60,
Si 0.30~0.80,
Mn 17.00~19.00,
S ≤0.025
P ≤0.060
Cr 3.50-5.00
N 0.08 min
W 0.70 - 1.20
50Mn18Cr4WN Mechanical Properties
| Tensile strength Rm （MPa） |
895 | 965 |
| Yield strength Rp0.2（MPa）min |
760 | 825 |
| Elongation A（%）min |
25 | 20 |
| Reduction of area Z（%）min |
35 | 30 |
| Charpy AKv min |
||
| Hardness HBW |
