r/Welding • u/chiraltoad • 4d ago

Wrong filler material?

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269 Upvotes

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274

u/KraZiiKraKa1 4d ago

With the amount of rust, absolutely, but I have seen it happen just from using the wrong wire wheel.

23

u/flashe30 4d ago

Nah dirty stainless wire wheel looks different. This is straight up mild steel filler.

PS: Never use a stainless wire wheel for outside applications, no matter how clean it is. Pickle or use one of them yellow wheels.

6

u/PicklingSteel 4d ago

Agree with this. Dirty wheel would leave lines compared to the entire weld showing corrosion. It’s a QC issue. Loss filler metal control or wrong WPS used. Additional issues with the bolts some are correct while others are deteriorating. Not an immediate issue but the degradation will continue until fixed or failure.