Stainless Steel Weld Cap is usually made of a variety of stainless steel materials, common materials include:

304 stainless steel: has good corrosion resistance and mechanical properties, widely used in general engineering and food industry.

304L stainless steel: low carbon version, suitable for occasions where intergranular corrosion needs to be avoided after welding.

316 stainless steel: contains molybdenum, has better corrosion resistance, especially suitable for marine and chemical environments.

316L stainless steel: low carbon version, suitable for occasions where intergranular corrosion needs to be avoided after welding.

321 stainless steel: contains titanium, has better resistance to intergranular corrosion, suitable for high temperature environment.

2520 stainless steel: high nickel and high chromium stainless steel, with excellent high temperature resistance and oxidation resistance.

310 stainless steel: high chromium and high nickel stainless steel, suitable for high temperature and corrosive environment.

317 stainless steel: contains higher molybdenum, suitable for strong corrosive environment.

The choice of these materials depends on the specific application environment and requirements to ensure that the welding cap can provide reliable performance under different conditions.