Because 321 stainless steel contains titanium or niobium elements, its strength and creep properties at high temperatures are better than those of 304 stainless steel.

The introduction of nickel in 304 makes it much more corrosion resistant than 430, but it also makes it more expensive. If cost is more important than service life, 430 may be more suitable.

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.