| 摘要 |
FIELD: iron and steel metallurgy. ^ SUBSTANCE: steel has the following composition, mas.%: carbon 0.16-0.24; silicon 0.15-0.25; manganese 0.3-0.8; chromium 1.0-2.0; nickel 1.5-2.5; vanadium 1.0-2.0; REM (rare earth metals) 0.08-0.12; titanium 0.2-0.6; boron 0.1-0.2; zirconium 0.8-1.2; iron - the rest. ^ EFFECT: upgrading of strength. ^ 1 tbl |
