超级双相不锈钢是指PREN>40含25%Cr和高钼>3.5%高氮0.22%～0.30%的双相钢主要牌号有UNS S32550(UR52N+)S32750SAF 2507)和S32760(Zeron 100),分别是法国CLI瑞典SANDVIK和英国MATER+PLATT等公司开发的它们的变形材约在1990和1991年先后问世近年走入市场这三种钢的成分是相近的区别在于钨和铜的含量不同
超级奥氏体不锈钢的概念是与超级铁素体不锈钢及超级双相不锈钢一起出现的。
The concept of super austenitic stainless steel appeared with super ferrite stainless steel and super double phases stainless steel together.
优化碱洗工艺、对重点设备加强监测或采用双相不锈钢及超级不锈钢可使腐蚀问题得到缓解。
Optimization of caustic wash process, strengthened monitoring of critical equipment or application of duplex stainless steel or super stainless steel can mitigate the cracking problems.
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