Standard specification for steel castings , martensitic stainless and alloy , for pressure - containing parts , suitable for high - temperature service 高温设备承压部件用合金钢和马氏体不锈钢铸件标准规范
We are specialized in sand castings in the materials of carbon steel , alloy steel , austenite stainless steel , martensite stainless steel , duplex stainless steel and so on , products are widely usrd in general machine , electric power , mining machine and so on 碳钢、合金钢、奥氏体不锈钢、马氏体不锈钢、双相不锈钢等铸件，产品应用于通用、电力、矿山机械等行业。
Traditionally , pump manufacturers have specified hardened martensitic stainless steels for critical wear parts , maintaining a 50 - 100 brinell hardness difference between rotating and stationary components as experience has shown this is adequate to prevent galling 通常，制造商采用特殊的淬火马氏体不锈钢制造关键磨损件，旋转件和固定件的布氏硬度分别保持在50 - 100 ，经验表明，足以防止发生咬合现象。
Hf + hno3 water solution can be used for corroding of metallographic sample of martensitic stainless steel , corroding efficacious is the same as its of 4 % nitric acid alcohol solution , corroding speed is quick and corroding test surface is clear , similar discoloration made on test surface can be avoided when fecl + hcl water solution is applied 摘要介绍了用氢氟酸、硝酸水溶液侵蚀剂侵蚀马氏体不锈钢，侵蚀速度快且侵蚀试面清澈，避免了氯化高铁、盐酸水溶液对侵蚀面造成的污迹缺陷。
