摘要：

Provided is a method for producing a circumferential weld joint having weld metals exhibiting high-strength, high-toughness and high corrosion resistance, and with which, when performing circumferential welding of low-carbon martensite stainless steel tubing for transporting oil and natural gas, it is possible to efficiently perform the welding using inexpensive similar composition metal weld materials. After abutting the tube ends of low-carbon martensite stainless steel tubes having a predetermined composition, and performing multilayer arc welding using a weld material having a predetermined composition, the first pass of multilayer arc welding involves performing CMT welding which continuously generates an arc while moving the welding material in and out of a molten pool, and in second and subsequent passes performing one type of welding selected from among GMA welding, GTA welding and CMT welding.

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