| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: cast iron contains the following substances, in wt %: carbon 3.0-3.4, silicon 0.2-0.3, manganese 0.2-0.3, magnesium 0.001-0.002. aluminium 0.05-0.1, tantalum 0.03-0.05, boron 0.7-0.9, tungsten 4.4-4.8, cobalt 1.2-1.6, erbium 0.1-0.15, iron making the rest. ^ EFFECT: higher heat resistance. ^ 1 tbl |
