Welding of dissimilar steels

2009-02-25View Original

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Can 309 welding wire be used for welding 304L and 316L to 20# respectively?

Reply #22009-02-25

This issue is indeed quite special. I asked some senior engineers today, but they said this situation is rare. I’ll ask other people tomorrow and come back to report based on what happens.

Reply #32009-03-01

309 welding wire can be used. For welding these two different steel grades by submerged arc welding, H1Cr24Ni13|(309) welding wire can be employed, while for TIG welding, H1Cr24Ni13|(ER309) can be used. For more details, refer to page 49 of the JB/T4709-2000 standard.

Reply #42009-03-01

Of course, it’s possible. It’s clearly stated in the standard SH/T 3526‑2004, Welding Procedures for Dissimilar Steels in Petrochemical Industries

Reply #52009-03-01

It is reasonable to select according to 4708, and the selection principle is the Schaeffer diagram.

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Welding of dissimilar steels

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