| 摘要 |
FIELD: metallurgy, in particular, manganese-chromium steel compositions used in machine-tool building. ^ SUBSTANCE: steel composition contains, wt%: carbon 0.2-0.4; silicon 0.2-0.4; manganese 6.0-8.0; chromium 8.0-12.0; vanadium 0.1-0.2; calcium 0.01-0.02; copper 2.0-3.0; aluminum 0.03-0.08; boron 0.02-0.04; iron the balance. ^ EFFECT: increased cutting machinability of steel. ^ 1 tbl |
