Steel used for mold tool, contains specific amounts of carbon, silicon, silicon plus aluminum, manganese, chromium, molybdenum plus tungsten, vanadium, niobium, titanium, and zirconium, cobalt, nickel, and iron and impurities
摘要
<p>Steel contains (wt.%): carbon (0.43-0.60); silicon (from traces-1.5); silicon plus aluminum (from traces-1.5); manganese (0.1-2.0); chromium (3.0-7.0); molybdenum plus half of tungsten (1.5-4.0), in which tungsten = 1.0; vanadium (0.30-0.70); each of niobium, titanium, and zirconium (= 0.1); cobalt (= 2.0); nickel (= 2.0); iron and impurities (balance).</p>
