310S Brief introduction 310S stainless steel is a highly alloyed austenitic stainless steel designed for elevated-temperature service. The high Cr and Ni contents enable this alloy to resist oxidation in continuous service at temperatures up to 1200°C, provided reducing sulfur gases are not present. In intermittent service, it can be used at temperatures up to 1030°C as it resists scaling and has a relatively low coefficient of expansion. This alloy has superior resistance, compared to both SS 304 and SS 309, in carburizing and reducing environments. Chemical composition C Si Mn Cr P S Ni ≤0.08 ≤1.00 ≤2.0 24.0-26.0 ≤0.035 ≤0.03 19.0-22.0 Physical property Tensile Strength Yeild Strength Elongation Reduction of Area HB Density ≥520MPa ≥205MPa ≥40% ≥50% ≤187 7.98g/cm3 Application SS 310 types are used for their high-temperature oxidation resistance in applications such as furnace parts and shafts, mufflers, radiant tubes, ammonia converters, carbon saggers, power boiler tube hangers, brazing fixtures, glass forming equipment, chemical process industry, food processing.