1.4539 or 904L is a high corrosion resistance austenitic stainless steel, particularly used in sulphuric and phosphoric acids applications.

1.4845 or 310S, 2520 is for high temperature applications up to 1100°C (2010°F) in oxidizing atmospheres, is used in Furnaces, Pyrometallurg, Sintering or cement plants, On/Offshore Refineries.

1.4462 or S31803, S32205, 2205 is a cost efficient material due to its low Nickel content compare to other austenitic stees, but it is with very good strength and resistance to corrosive media...