310 / 310S Stainless Steel Plate
310 is a highly alloyed austenitic stainless steel used for high temperature applications. The high chromium and nickel contents give the steel excellent oxidation resistance and excellent strength at high temperatures. This grade is also very ductile and has good weldability enabling its widespread usage in many applications.
310S is, due to its lower carbon content, is recommended for applications where sensitisation and subsequent corrosion by high temperature gases or condensates may pose a problem.
310 is manufactured in accordance with ASTM A167 and 310S to ASTM A240.
310/310S Stainless Steel Plate 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 310/310S Plate 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 Equivalent
| 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 |
