443 stainless steel increases the chromium content to 21%, and its corrosion resistance is as good as that of 304 stainless steel. Secondly, titanium is added to play a stabilizing role, and it also maintains good corrosion resistance after welding.

304 is an austenitic stainless steel, while 904L is a completely austenitic structure and is insensitive to the precipitation of ferrite and α phase.

316 stainless steel contains more nickel and molybdenum, has stronger corrosion resistance and low-temperature impact toughness, and is suitable for marine environments or high chloride environments. 304 stainless steel performs well in general environments or mildly corrosive environments and has a lower cost.

‌316/316L cold-rolled stainless steel plate‌ is a high-performance stainless steel material widely used in various industrial fields.

The main components of 304 stainless steel include about 18% chromium and 8% nickel, which makes it have good corrosion resistance and oxidation resistance.

ASTM A213 TP 316L is a stainless steel material standard, mainly used to manufacture various seamless and welded austenitic stainless steel pipes.