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Determining how much current a cable can handle before it reaches its temperature limit.

For engineers: specify filler metals with adequate manganese or ferrite, and never assume the capping pass is "just cosmetic." It is the armor of your weld, and a crack in the armor is a failure waiting to happen. cymcap hot crack

If you travel too fast, the weld pool is long, narrow, and prone to centerline cracking. Use a slower travel speed with a (if permitted by the WPS) to create a broader, shallower pool. Determining how much current a cable can handle