摘要 |
FIELD: metallurgy.SUBSTANCE: steel contains the component at following content in wt %: carbon 0.25-0.40, silicon 1.00-1.50, manganese 0.90-1.20, chrome 26.0-28.0, sulphur 0.025 max., phosphorus 0.040 max., aluminium 0.01-0.06, nickel 9.50-10.50, nitrogen 0.10-0.15, iron - rest.EFFECT: increased heat resistance of steel.4 tbl |