Stainless strip steels which leads to high strength and toughness and a method of manufacturing thereof

摘要

Stainless steel strip of high strength and toughness, which consists essentially of the following in weight -% is:C: up to 0,1% (exclusively of 0 %);Si: more than 1,0% and not more than 4,0 %;Mn: up to 5,0% (exclusively of 0 %);Ni: of 4,0 to 10,0 %;Cr: of 12,0 to 18,0 %;Mo: of 1,0 to 5,0 %;N: up to 0,15% (exclusively of 0 %);the balance being fe and unavoidable impurities are, specifically with the condition that C + n ≧ 0,1 %is met and wherein the alloy element contents are set such that a value for md (n) is defined by the following equation: Md (n) = 580 – 520 × [% c] – 2 × [% si] – 16 × [% mn] – 16 × [% cr] – 23 × [% ni] – 10 × [mo%] and the value..