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铁素体是指铁和其它元素形成的体心立方晶格结构的固溶体。铁素体不锈钢则是指含有大于12%的铬在α铁中的间隙固溶体。其中还含有相当低的碳和铁素体形成元素,如Al、Mo等,以保证钢的组织主要是铁素体,它具有强烈的磁性,不能用淬火方法使之硬化。铁素体不锈钢的含Cr量一般为13%~30%,含碳量低于0.25%,有时还加入其它合金元素,金相组织主要是铁素体,
Ferrite refers to a solid solution of a body-centered cubic lattice structure formed of iron and other elements. Ferritic stainless steel refers to interstitial solid solutions containing greater than 12% chromium in α-iron. Which also contains very low carbon and ferrite forming elements, such as Al, Mo, etc., to ensure that the steel is mainly ferrite, it has a strong magnetic, can not quench harden it. Ferritic stainless steel containing Cr content is generally 13% to 30%, carbon content of less than 0.25%, and sometimes also join other alloy elements, microstructure mainly ferrite,