| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: low-alloyed cast iron contains the following components, wt %: carbon 3.0-3.2; silicon 0.3-0.3; manganese 0.01-0.02; vanadium 0.01-0.02; phosphorus 0.03 - 0.07; sulfur 0.03 - 0.07; copper 0.3-0.5; nickel 0.02-0.03; chrome 0.02-0.03; titanium 0.001-0.002; cobalt 0.2-0.3; aluminium 0.2-0.3; gallium 0.0001-0.0003; hafnium 0.01-0.02; iron - the balance. ^ EFFECT: higher quality of item surface. ^ 1 tbl |
