| 摘要 |
FIELD: manufacture of equipment for petroleum refining industry. ^ SUBSTANCE: proposed steel contains the following constituents, mass-%: carbon, 0.2-0.4; silicon, 0.2-0.4; manganese, 0.3-0.8; chromium, 15.0-20.0; nickel, 2.0-2.5; copper, 0.3-0.8; nitrogen, 0.03-0.08; titanium, 0.1-0.2; niobium, 0.3-0.8; rare-earth metals, 0.2-0.4; magnesium, 0.03-0.08; molybdenum, 3.0-4.0; cobalt, 0.3-0.8; the remainder being iron. ^ EFFECT: enhanced strength of steel. ^ 1 tbl |
