GBT K418
Chemical composition(mass fraction)(wt.%)
C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Ni(%) | Mo(%) | B(%) | Nb(%) | Al(%) | Ti(%) | Other(%) |
---|---|---|---|---|---|---|---|---|---|---|---|---|
0.09-0.14 | Max 0.5 | Max 0.5 | Max 0.015 | Max 0.015 | 11.5-13.5 | Balance | 3.80-4.80 | 0.006-0.020 | 1.80-2.50 | 5.50-6.40 | 0.50-1.00 | Zr :0.06-0.15 |