压力容器用XG630DR钢板的研制  

Development of Steel Plates XG630DR for Pressure Vessel

作　　者：王国文[1] 杨文荣[1] 刘小林[1] 

机构地区：[1]新余钢铁集团有限公司,江西新余338001

出　　处：《压力容器》2015年第10期8-16,共9页Pressure Vessel Technology

摘　　要：针对我国目前压力容器用正火钢板强度最高许用590 MPa级别的现状,研究开发了630MPa强度级别的高强韧正火XG630DR钢板,并对该钢种的组织性能进行综合评价。文中通过成分分析、金相组织分析、拉伸试验、冲击试验、系列温度冲击试验、Z向性能检测、落锤试验、SR处理和焊接接头的测试,较系统地研究了其正火态、SR处理后的性能,结果表明:XG630DR钢板具有高强度和良好的冲击韧性,可作为制作罐体、罐箱的更新换代材料。Research and development is implemented for a 630 MPa strength level high strength-toughness steel plate grade XG630DR according to the present status that the highest strength of 590 MPa for pres- sure vessel plates in normalizing is allowed to use in China. Comprehensive assessment are made for the microstructure properties. In this paper, performance are systematically studied for the plates in normali- zing condition and after SR treatment through microstructure analysis, tensile test, impact test, impact test at different temperature, through thickness test, drop weight test, the SR treatment and welding joint test. The results show that the XG630DR steel has the properties of high strength, good impact toughness, and can be used as the upgrading materials for tanks and tank box.

关 键 词：XG630DR钢 组织性能 无塑性转变温度 罐体 罐箱 

分 类 号：TH142[一般工业技术—材料科学与工程] TH49[机械工程—机械制造及自动化]