JBT6402-2018 大型低合金钢铸件技术条件.pdf

ICS77.140.80

J31

备案号：61736-2018J

中华人民共和国机械行业标准

JB/T6402-2018

代替JB/T6402一2006

大型低合金钢铸件技术条件

Heavylowalloysteelcastings-Technicalspecification

2018-02”09发布

2018-10-01实施

中华人民共和国工业和信息化部发布

JB厅’6402-2018

目次

前言．．··………H…………···············…H………………”··…..II

1范围……………”··”…………1

2规范性引用文件…………1

3订货要求……·················…1

4制造工艺………………·······…1

4.1冶炼························································…·．．．．．‘………………...……1

4.2铸造”…………………………1

4.3热处理…··……2

4.4补焊··············……………••e•••e•••e••oeo…2

4.5矫正……··………………··……………2

5技术要求…………………·…………2

5.1化学成分…·······………··…••••••w…2

5.2力学性能”··”．．”··………………·”··……………”…3

5.3无损检测·······………5

5.4铸件表面质量……·············································….6

5.5形状和尺寸公差………………6

6检验规则和试验方法············………………··……·········………6

6.1化学成分分析····················································…··………6

6.2力学性能试验………………6

6.3无损检测……·················………………·····················……6

6.4表面粗糙度………·······…………··……··……·········……6

6.5复试．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．国…………………6

6.6重新热处理…········…·····················……………··………7

7质量证明书·········………··……………······················…··……7

8标识和包装…………••a•••••…··……7

表1化学成分………········………………2

表2