ГОСТ 31X19H9MBБT
Chemical composition(mass fraction)(wt.%)
C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Ni(%) | Mo(%) | W(%) | Nb(%) | Ti(%) |
---|---|---|---|---|---|---|---|---|---|---|
0.28-0.35 | Max 0.80 | 0.80-1.50 | Max 0.035 | Max 0.02 | 18.0-20.0 | 8.00-10.0 | 1.00-1.50 | 1.00-1.50 | 0.20-0.50 | 0.20-0.50 |