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全国钢标委轴承钢分委会2019年年会暨三项国家标准审定会在扬州市召开

2019-10-11

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　　2019年10月9日，全国钢标准化技术委员会轴承钢分技术委员会2019年年会在江苏省扬州市顺利召开。来自全国12家生产企业、用户及科研院所的23位委员及代表参加了会议。

　　委员会秘书长江阴兴澄特种钢铁有限公司的孟羽做了年度工作汇报，总结了2019年轴承钢分技术委员会在全体委员的共同努力下完成的各项工作任务，达到了预期目标，并汇报了下一步的工作计划。

　　会议期间审定通过了《超高洁净高碳铬轴承钢通用技术条件》、《高温不锈轴承钢》及《高温渗碳轴承钢》三项国家标准：

　　（1）《超高洁净高碳铬轴承钢通用技术条件》包含了5个牌号，适用于制造汽车、铁路、能源、数控机床等长接触疲劳寿命的轴承套圈和滚动体。与GB/T 18254-2016中的优质钢相比，加严了O、Ti、S元素含量控制要求，取消了化学成分允许偏差；加严了碳化物不均匀评定指标、脱碳层的要求；增加了压缩比、晶粒度、超声检测、水浸探伤检验宏观夹杂物、接触疲劳等要求。

　　（2）《高温不锈轴承钢》在YB 1205-1980标准的基础上，新增了G115Cr14Mo4V高温不锈轴承钢牌号，并增加了发纹、晶粒度和无损检测的要求。适用于制造可耐300~400℃高温的不锈轴承的套圈和滚动体。

　　（3）《高温渗碳轴承钢》在YB 4106-2000标准的基础上，新增了G20W10Cr3NiV高温渗碳轴承钢牌号，适用于制造耐300~400℃温度、耐冲击轴承套圈。

　　三项轴承钢标准的制定，完善了我国轴承钢的标准体系，为引导和规范轴承钢的生产和订货提供了依据。

（来源：冶金标准化研究所）