钢制对焊管件材料等级的选用

摘要

GB/T 13401"Steel Butt Welded Fittings Technical Code" has been revised. In this standard the material grades for steel butt welded fittings were specified, so that the material system for butt welded fittings were preliminarily established, which will make the material selection in design convenient and the selection scope for raw materials expanded. In this article, the selection of material grade in design and the selection of raw materials in fabrication were stated, which may be helpful in the understanding and application of this revised standard.%GB/T 13401《钢制对焊管件-技术规范》已完成修订.修订后的该标准规定了钢制对焊管件的材料等级,初步建立了我国对焊管件的材料体系,这将对设计选用带来方便,并扩大了管件制造商对原材料的选择范围.通过对材料等级的设计选用和制造厂原材料选用的阐述,以期对该标准的理解和使用提供帮助.