GB/T 2100—2017《通用耐蚀钢铸件》标准解读

Interpretation of GB/T 2100—2017“Corrosion-Resistant Steel Castings for General Application”

介绍了GB/T 2100—2017标准的主要修订内容,通用耐蚀钢铸件的牌号、化学成分、力学性能、热处理、焊补、试验方法、验收规则以及标准的特点和典型应用案例。标准中涉及马氏体型、奥氏体型、双相(奥氏体-铁素体)型三大类27种不锈钢铸件牌号,能够满足各种腐蚀工况环境对铸件耐蚀性能和力学性能的要求。在选材时要结合不锈钢的特性和服役工况环境,综合考虑材料成本、制造成本和工艺难易程度,优选出性价比高的耐蚀钢铸件牌号,提升装备的安全性和可靠性。

This paper introduces the main revision contents of GB/T 2100—2017 standard,the brand,chemical composition,mechanical properties,heat treatment,welding repair,test methods and acceptance rules of general corrosion resistant steel castings,and the characteristics,typical application cases of the standard.The standard covers 27 kinds of stainless steel castings in three categories:martensite,austenite and duplex(austenite-ferrite),which can meet the requirements of corrosion resistance and mechanical properties of castings in various corrosive working conditions.When selecting materials,it is necessary to combine the characteristics of stainless steel and the service environment,and comprehensively consider the material cost,manufacturing cost and process difficulty degree,so as to optimize the brand of corrosion resistant steel castings with high price-performance ratio,which improve the safety and reliability of equipment.