Stainless Steel 310 Composition

310 Stainless Steel Chemical Composition

Grade C Mn Si P S Cr Mo Ni N
310 min.  24.0 0.10  19.0
max.  0.015 2.0 0.15 0.020 0.015  26.0  21.0
310S min. 24.0 0.75 19.0
max. 0.08 2.0 1.00 0.045 0.030 26.0 22.0

Stainless Steel 310 Mechanical Properties

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
310 515 205 40 95 217
310S 515 205 40 95 217

Stainless Steel 310 Physical Properties

Grade Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion (m/m/0C) Thermal Conductivity (W/m.K) Specific Heat 0-1000C (J/kg.K) Electrical Resistivity (n.m)
0-1000C 0-3150C 0-5380C at 1000C at 5000C
310 7750 200 15.9 16.2 17.0 14.2 18.7 500 720
310S 7750 200 15.9 16.2 17.0 14.2 18.7 500 720

Stainless Steel 310 Equivalent

Equivalent Grades for 310 Stainless Steel
Grade UNS No Old British Euronorm Swedish SS Japanese JIS GOST
BS En No Name
310 S31000 304S31 58E 1.4841 X5CrNi18-10 2332 SUS 310 20Ch25N20S2
310S S31008 304S31 58E 1.4845 X5CrNi18-10 2332 SUS 310S 20Ch23N18

310S stainless steel specifications ASTM A213 SS 310 has a unique material composition with additions of 0.08 Carbon, 1.50 Si, 2.0 Manganese, 1.50 Silicon, 0.030 Sulfur, 0.045 Phosphorous, 24.0-26.0 chromium, Nickel 19.0-22.0. A min. tensile strength of 515 Mpa and a min. yield strength of 205 Mpa, elongation 40, hardness Rockwell B (HR B) max 95, hardness Brinell (HB) of 217 max. Equivalent grades for standard SS310S, UNS S31008, WERKSTOFF NR. 1.4845.
The main element Chromium is used to make steel as stainless and it plays vital role in forming the passive film. No other element can replace chromium in order to achieve its stainless property and influence the effectiveness of chromium in forming or maintaining the film.
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