The surface of a mild steel weld will show the contamination effects of dirt, surface oxides, and inadequate shielding gas more easily than stainless steel.

Question

Quizplus · Accepted Answer

Mild steel is more prone to oxidation and contamination than stainless steel, but stainless steel welds show contamination effects more visibly due to their higher chromium content, which forms a protective oxide layer that can be disrupted by contaminants.

The Surface of a Mild Steel Weld Will Show the Contamination