The austenitic stainless steel 310S (UNS S31008/AISI310S) has about 25% Cr, 0,6 % Si and 20% Ni. This grade is known for its behavior of corrosion resistance at high temperature. The additions of carbon are optimized in order to improve its creep deformation resistance. The steel can easily be welded. AISI 310S is projected for high temperature applications, up to 1100°C, in oxidating atmospheres.

The steel can also be used under conditions of slightly oxidating atmosphere, nitriding, cementation and sulfuring as well as with thermal cycles, although temperature must be reduced.

This stainless steel is widely used in the thermal treatment industry for parts of furnaces, such as refractories support, parts of burners, conveyor belts, furnace lining, fans, etc.; in the food industry, they are used in contact with heated citric and acetic acids.