| 简介 |
A cold-rolled flat steel product is made from a steel comprising less than 0.1 carbon, 6.5-11 wt.% aluminum, 0.02-0.2 wt.% rare-earth metal, less than 0.1 wt.% phosphorus, less than 0.03 wt.% sulfur, less than 0.1 wt.% nitrogen, and optionally one or more elements chosen from manganese, silicon, niobium, titanium, molybdenum, chromium, zirconium, vanadium, tungsten, less cobalt, nickel, boron, copper and calcium, and remainder of iron and unavoidable impurities. A cold-rolled flat steel product is made from a steel comprising less than 0.1 carbon, 6.5-11 wt.% aluminum, 0.02-0.2 wt.% rare-earth metal, less than 0.1 wt.% phosphorus, less than 0.03 wt.% sulfur, less than 0.1 wt.% nitrogen, and optionally one or more elements chosen from less than 6 wt.% manganese, less than 1 wt.% silicon, less than 0.3 wt.% niobium, less than 0.3 wt.% titanium, less than 1 wt.% molybdenum, less than 3 wt.% chromium, less than 1 wt.% zirconium, less than 1 wt.% vanadium, less than 1 wt.% tungsten, less than 1 wt.% cobalt, less than 2 wt.% nickel, less than 0.1 wt.% boron, less than 3 wt.% copper and less than 0.015 wt.% calcium, and remainder of iron and unavoidable impurities. An independent claim is included for production of cold-rolled flat steel product. |
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