GBT K273
Chemical composition(mass fraction)(wt.%)
C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Ni(%) | Mo(%) | W(%) | N(%) | B(%) | Nb(%) | Al(%) |
---|---|---|---|---|---|---|---|---|---|---|---|---|
0.75-0.90 | 0.30-1.00 | 4.50-6.00 | Max 0.04 | Max 0.02 | 18.0-21.0 | 4.50-5.50 | 0.80-1.20 | 0.80-1.20 | 0.10-0.20 | Max 0.005 | 0.65-0.85 | Max 0.05 |