The tests exhibit that the weld connections by J422 electrode are more resistant to SSCC than those by J507 electrodes.The PWHT can reduce the SSCC sensitivity.

• 实验结果表明：J422焊条焊接的焊接接头比J507焊条焊接的抗SSCC性能好,焊后热处理可以降低SSCC敏感性。