Stainless Steel Sheet 310

General 310 is an austenitic heat resisting alloy with excellent resistance to oxidation under mildly cyclic conditions to 2100°F. Rapid thermal cycling increases the rate of metal wastage somewhat by spalling of the protective oxide scale.

The oxidation resistance of 310 is significantly better than that of 309. Because of its high chromium and medium nickel contents 310 has good resistance to hot corrosion in a variety of environments. 310 has useful resistance to high temperature environments containing moderate amounts of sulfur. However, sufficiently high concentrations of sulfur may dictate the use of materials free of nickel. 310 is widely used in moderately carburizing atmospheres such as encountered in petrochemical environments. 310 does not posses sufficient resistance to carbon and nitrogen absorption for service in the highly carburizing atmospheres of industrial heat treating furnaces. 330 or 333 are more suited to this latter environment.

The chromium content of 310 provides resistance to aqueous corrosion under oxidizing conditions. 310 is susceptible to chloride ion stress corrosion cracking but is superior in this respect to the lower alloy stainless 304 and 316. 310 has fair resistance to polythionic acid attack. Resistance to intergranular attack of material intended for service in the 850 to 1000°F range may be improved by thermal stabilization at 1500-1650°F for four hours.