ГОСТ 11Р3АМ3Ф2
Chemical composition(mass fraction)(wt.%)
C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Ni(%) | Mo(%) | V(%) | W(%) | N(%) | Cu(%) | Co(%) | Nb(%) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1.02-1.12 | 0.20-0.50 | 0.20-0.50 | ≤0.030 | ≤0.030 | 3.80-4.40 | ≤0.60 | 2.50-3.00 | 2.30-2.70 | 2.50-3.30 | 0.05-0.10 | ≤0.25 | ≤0.50 | 0.05-0.20 |