X65MOS海底低温抗酸钢板性能对比分析  

Comparative Analysis of X65MOS Submarine Low-temperature Acid-resistant Steel Plate

作　　者：王林林 陈小伟 范洁 李志华 孙永琪 董超 张思思 WANG Linlin;CHEN Xiaowei;FAN Jie;LI Zhihua;SUN Yongqi;DONG Chao;ZHANG Sisi(Julong Steel Pipe Co.,Ltd.,Qingxian 062658,China)

机构地区：[1]巨龙钢管有限公司,河北青县062658

出　　处：《钢管》2022年第1期39-43,共5页Steel Pipe

摘　　要：对比分析国内外主要钢厂生产的X65MOS海底低温抗酸钢板的化学成分和性能等.分析认为:4种钢板均采用了超低碳、低锰、低硫,适当添加Ni、Cr、Cu合金元素以及Nb、V、Ti等微合金元素的合金设计,冷裂纹敏感指数均保持在0.14%左右;4种钢板均具有优良的低温韧性,-45℃夏比冲击功在390 J以上,-30℃落锤撕裂试验也都满足单值≥70%、均值≥85%的要求;4种钢板抗氢致开裂、抗硫化物应力腐蚀性能均符合标准要求;显微组织差异是造成材料力学性能差异的主要原因;国内厂家生产的X65MOS钢板的性能与国外厂家同类产品基本处于同一水平.Comparatively analyzed are the performances of the X65MOS submarine low-temperature acid-resistant steel plate as made by the major steel works both at home and abroad.It is regarded via the analysis that the four types of the X65MOS low-temperature,acid-resistant steel plate are designed for alloying with super-low carbon,low Mn,and low S,and proper addition of such alloying elements as Ni,Cr,and Cu as well as micro-alloying elements as Nb,V and Ti,all showing the cold-cracking sensitivity index as kept as about 0.14%;all the plates show excellent low-temperature toughness level,and have properties as Charpy impact energy at-45℃:above 390 J;drop weight tear test result at-30℃:single value≥70%,average value≥85%,both up to the requirement;HIC and SSC resistances:up to applicable standard requirements.The microstructure differences are the major cause for the mechanical property differences of the material.It is concluded that the performance level of the home-made X65MOS steel plate has been almost equal to that of the similar products as made abroad.

关 键 词：钢板 X65MOS 海底 低温 抗酸 硬度 

分 类 号：TG142.1[一般工业技术—材料科学与工程] TE973.92[金属学及工艺—金属材料]