建筑用高耐蚀性铁素体不锈钢B445R的研制

Development of Ferritic Stainless Steel B445R with Superior Corrosion Resistance for Architectural Applications

宝钢研制出了建筑屋顶装饰用铁素体不锈钢B445R毛面产品。该产品的耐蚀性比奥氏体不锈钢SUS316L更优越,成本也比SUS316L低,采用常规的成形方法就可以将其加工成屋顶面板。此外,由于该产品的热膨胀系数比SUS316L小,故其热变形也比SUS316L小,同时由于进行了毛化处理,其表面具有较低的光反射能力。所有这些优点使其有能力成为沿海地区建筑物的屋顶装饰材料。

The dull-finish ferritic stainless steel(FSS) sheet B445R for architectural roofing was developed by Baosteel.This steel product exhibits excellent corrosion resistance superior to that of SUS316L with a lower cost.It can be easily formed into roofing panels by ordinary processes.Moreover,the thermal strain of it is less than SUS316L because of its lower thermal expansion coefficient,and its reflectivity is lower due to the dull-finish treatment.All of these features make it capable of being used as archite...