| 摘要 |
FIELD: iron and steel industry. ^ SUBSTANCE: iron consists of, mas. %: carbon 3.2-3.6; silicon 1.0-1.4; manganese 0.6-1.0; chromium 28.0-30.0; nickel 1.0-2.0; zirconium 0.1-0.2, niobium 1.0-2.0, nitrogen 0.15-0.2; calcium 0.005-0.01; iron - the rest. ^ EFFECT: iron possesses high hardness. ^ 1 tbl |
