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  • Shaanxi Tonghui Steel Co., Ltd.

  • E-mail: sxthsteel@sxth-group.com

  • Tel: +86-29-89636557

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  • Welding Requirements and Methods of Thin-walled Stainless Steel
    Jan 02, 2019

    stainless steel welded pipe

    Taking stainless steel welding with thickness of 0.5mm~2mm as an example, the weld seam should be double-sided, smooth and burr-free, and no undercut and penetration are allowed. Material welding problems are closely related to heat input. When heat input is large and cooling is slow, hot cracking, corrosion cracking and deformation are easy to occur. 

    In the welding method, the heat input of direct current tungsten argon arc welding is small, and besides protecting high temperature metals, the argon gas has a cooling effect, which improves the crack resistance of weld seam and reduces the welding deformation of stainless steel. 

    In addition, the heat generated by tungsten pole is small, and the tungsten arc is stable, and it can still burn stably under very small welding current, especially suitable for thin-walled stainless steel welding.Therefore, the direct DC tungsten argon arc welding method should be chosen for the welding of thin-walled stainless steel.

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