Stainless steel expands and contracts quickly with heat. During welding, this causes distortion or warping. To reduce this, use proper clamping and weld in short bursts. This is especially important when welding stainless steel to steel since different metals expand differently.

Discoloration is due to oxidation from heat. It affects corrosion resistance. Clean the weld area after with pickling paste or a wire brush. Learning how to weld stainless steel properly with temperature control can help avoid this.

Welding 201 stainless steel is tricky because it has more manganese and less nickel, making it more prone to cracking. Use a filler metal that matches and preheat if needed. Proper technique reduces the risk of brittle welds.

For 304, use a 304 stainless steel welding rod or ER308L filler wire. It gives strong, corrosion-resistant welds. Always clean the base metal before welding and avoid contamination for best results.