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Is it normal for the welds formed by bridging welding between 310S stainless steel pipes to be very dark when welded using TIG welding?

2015-11-21View Original

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Burn butt weld between 310S stainless steel pipes of 65*5. Is a welding current of 100 for ER310 TIG welding wire normal? Is it normal that the weld is black instead of golden yellow after welding?
Reply #22015-11-23
This weld location is difficult to weld. So the welding speed is slow. And the protection isn’t very good. The heat input is high, so it’s black.
Reply #32015-11-24
This is mainly a problem with gas protection; the weld has oxidized.
Reply #42016-01-09
After welding, how can the discolored weld be treated quickly and cleanly?

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Translated at 2026-07-21 01:16:09

Original: https://bbs.hcbbs.com/thread-1501729-1-1.html

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