海洋石油平台超级双相不锈钢管线焊接工艺研究

Research on Welding Procedure of Duplex Stainless Steel in Offshore Oil Platform

重点阐述对海洋石油平台中超级双相不锈钢工艺管线焊接工艺的研究。采用GTAW和SMAW两种焊接方法,分别使用Sandvik 25.10.4.L和Sandvik 25.10.4.LR对ASTM A928 CL1 S32750(SAF 2507)进行焊接试验研究。试验结果表明,使用所选择的焊接材料及焊接工艺参数,可以达到理想的强度、韧性、抗腐蚀性能及微观组织要求。

This paper especially introduces the welding procedure of super duplex stainless steel in offshore oil platform.We did carry out the welding research tests on ASTM A928 CLl S32750(SAF 2507) by GTAW and SMAW welding processes and Sandvik welding materials-.Sandvik 25.10.4.L and Sandvik 25.10.4.LR.The results shows,we can get a good performance of strength,toughness and micro structure with the applied welding materials and welding parameters.