Stainless Steel 310S

Stainless Steel 310S is austenitic chromium-nickel stainless steel with good oxidation resistance and corrosion resistance,because of the higher percentage of chromium and nickel, 310S has much better creep strength, can continue to operate at high temperatures, and has good high temperature resistance.

Fabrication of Grade 310S Stainless Steel

Fabrication Grades 310S are forged in the temperature range 975 - 1175°C. Heavy work is carried out down to 1050°Cand a light finish is applied to the bottom of the range. After forging annealing is recommended to relieve all stresses from the forging process. The alloys can be readily cold formed by standard methods and equipment.

Machinability of Grade 310S Stainless Steel

Machinability Grades 310SS are similar in machinability to type 304. Work hardening can be a problem and it is normal to remove the work hardened layer by using slow speeds and heavy cuts, with sharp tools and good lubrication. Powerful machines and heavy, rigid tools are used.

Welding of Grade 310S Stainless Steel

Welding Grades 310S are welded with matching electrodes and filler metals. The alloys are readily welded by SMAW (manual), GMAW (MIG), GTAW (TIG) and SAW. Electrodes to AWS A5.4 E310-XX and A 5.22 E310T-X, and filler metal AWS A5.9 ER310 are used. Argon is shielding gas. Preheat and post heat are not required, but for corrosion service in liquids full post weld solution annealing treatment is essential. Pickling and passivation of the surface to remove high temperature oxides are essential to restore full aqueous corrosion resistance after welding. This treatment is not required for high temperature service, but welding slag should be thoroughly removed.

Heat Treatment of Grade 310S Stainless Steel

Heat Treatment Type 310S are solution annealed by heating to temperature range 1040 -1065°C, holding at temperature until thoroughly soaked, then water quenching.

Heat Resistance of Grade 310S Stainless Steel

Grades 310S have good resistance to oxidation in intermittent service in air up to 1035°Cand 1050°Cin continuous service. The grade is resistant to oxidation, sulphidation and carburisation.

Stainless steel 310S Chemical Composition, %

Stainless steel 310S Mechanical Properties

Stainless steel 310S Physical Properties

Density: 7.9 g/cm3

Stainless steel 310S Equivalent Grades

Stainless steel 310S ASTM Specification

Stainless steel 310S Applications：

• Petroleum industries

• Electronics industries

• Chemical industries

• Pharmaceutical industries

• Textile industries

• Food industries

• Machinery industries

• Construction industries

• Nuclear power industries

• Aerospace industries

• Military industries