jbt 8431-1996 热锻成形模具钢及其热处理 技术条件

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1、J46JB/T8431－96热锻成形模具钢及其热处理技术条件1996-09-03发布1997-07-01实施中华人民共和国机械工业部发布JB/T8431－96目次前言1范围·············································································································································································

2、·······································12引用标准·········································································································································································································13分类·········

3、···········································································································································································································14热锻成形模具钢技术条件···········································

4、··························································································································25热锻成形模具钢热处理技术条件·························································································································

5、····························36热锻成形模具钢的选材原则·······························································································································································4附录A（标准的附录）几种新型热锻成形模具钢常用基本参数······························

6、·····················································5附录B（提示的附录）常用热锻成形模具钢的性能比较·································································································12附录C（提示的附录）不同类型热锻成形模具钢应具备的性能及选材····················································

7、··············14IJB/T8431－96前言本标准系参考国内外十几种模具钢技术标准，总结我国热锻成形模具钢研究成果，并结合我国模具钢工业的现状而制订的。本标准的附录A是标准的附录。本标准的附录B和附录C是提示的附录。本标准由全国模具标准化技术委员会提出。本标准由机械工业部北京机电研究所归口。本标准起草单位：北京机电研究所、第一汽车制造厂、北京模具厂、华中理工大学。本标准主要起草人：李平安、张玉年、杨靖、廖绍基、罗学心。II中华人民共和国机械行业标准JB/T8431－96热锻成形模具钢及其热处理技术

8、条件1范围本标准规定了热锻成形模具钢的技术要求及热处理技术条件。本标准适用于热态体积成形模具的选材及热处理。2引用标准下列标准所包含的条文，通过在本标准中引用而构成为本标准的条文。本标准出版时，所示版本均为有效。所有标准都会被修订，使用本标准的各方应探讨使用下列标准最新版本的可能性。GB224—78钢的脱碳层深度测定法GB702—86热扎圆钢和方钢尺寸、外形、重量及允许偏