| 摘要 |
FIELD: metallurgy.SUBSTANCE: proposed composition contains the following substances, in wt %: carbon 0.5 - 0.9, silicon 0.3 - 0.5, manganese 0.3 - 0.5, vanadium 0.3 - 0.4, copper 2.4 - 3.0, nickel 0.8 - 1.0, chromium 2.6 - 3.0, phosphorus 0.05 - 0.1, sulfur 0.01 - 0.02, boron 0.04 -0.06, aluminium 0.11 - 0.15, titanium 0.001 - 0.002, molybdenum 0.1 - 0.16, niobium 1.6 - 2.2, nitrogen 0.0001 - 0.00012, iron making the rest.EFFECT: higher anti-tearing surfaces.1 tbl |
