| 摘要 |
FIELD: metallurgy.SUBSTANCE: proposed composition contains the following substances, in wt %: carbon - 3.0-3.4, silicon - 0.5-1.0, manganese - 0.5-1.0, magnesium - 0.005-0.01, aluminium - 0.02-0.04, tantalum - 1.1-1.5, boron - 0.7-0.9, tungsten - 4.4-4.8, iron making the rest.EFFECT: higher heat resistance.1 tbl |
