Stainless Steel Grade 310S - Super Heat Resistant Grade
Mar 23, 2026
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Standards and Equivalent Grades
| ASTM | JIS | UNS | EN | DIN | GOST | GB |
|---|---|---|---|---|---|---|
310S | SUS310S | S31008 | 1.4845 | X8CrNi25-21 | 20Х23Н18 | 0Cr25Ni20 |
Chemical Composition of 310S Heat-Resistant
| Grade | Standard | C | Cr | Ni | Mn | Si | P | S | Mo | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
310S | ASTM A240 | ≤0.08 | 24.0–26.0 | 19.0–22.0 | ≤2.0 | ≤1.5 | ≤0.045 | ≤0.030 | – | Balance |
1.4845 | EN 10088-2 | ≤0.08 | 24.0–26.0 | 19.0–22.0 | ≤2.0 | ≤1.5 | ≤0.045 | ≤0.030 | – | Balance |
SUS310S | JIS G 4304 | ≤0.08 | 24.0–26.0 | 19.0–22.0 | ≤2.0 | ≤1.5 | ≤0.045 | ≤0.030 | – | Balance |
Mechanical Properties of AISI 310S
310S stainless steel delivers high tensile strength and outstanding creep resistance, maintaining stability at elevated temperatures. Its lower carbon content ensures good weldability, while adequate ductility allows reliable fabrication for furnace parts, heat exchangers, and industrial equipment.
| Grade | Standard | Tensile Strength | Yield Strength | Elongation | Hardness |
|---|---|---|---|---|---|
310S | ASTM A240 | ≥520 MPa | ≥205 MPa | ≥40% | ≤217 HBW |
1.4845 | EN 10088-2 | ≥520 MPa | ≥210 MPa | ≥40% | ≤217 HBW |
SUS310S | JIS G 4304 | ≥520 MPa | ≥205 MPa | ≥40% | ≤217 HBW |
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