STEEL

文件类型：PDF文档
文件大小：61K
FIELD : metallurgy.SUBSTANCE : steel contains carbon, silicon, manganese, chrome, titanium, aluminum, rare-earth metals, calcium, niobium and iron, at following ratio of components, wt % : carbon 0.01-0.02, silicon 0.1-0.2, manganese 0.2-0.4, chrome 17.0-19.0, titanium 2.2-2.6, aluminum 2.2-3.2, rare-earth metals 0.3-0.5, boron 0.01-0.03, calcium 0.01-0.03, niobium 0.1 - 0.2, iron - the rest.EFFECT : increasing of steel impact elasticity.1 tbl