SS 310S.
SS 310S is a 25% chromium, 20% nickel heat-resisting grade.
Quick details
| Material grade | SS 310S (UNS S31008) |
|---|---|
| Forms | Pipes, Tubes, Sheets & plates, Round bars, Butt-weld fittings, Flanges |
| Usage / application | Furnace parts and radiant tubes, Burner and combustion components, Heat-treatment baskets and fixtures |
| Test certificate | EN 10204 3.1 mill test certificate; 3.2 on request |
| Business type | Stockist and supplier |
| Location | Kumbharwada, Mumbai 400004, Maharashtra |
Also searched as: SS 310S, stainless steel 310S, 310S, UNS S31008, W.Nr 1.4845, X8CrNi25-21
Product information for purchasing teams
SS 310S is a 25% chromium, 20% nickel heat-resisting grade. It resists oxidation in continuous service up to about 1100 °C, which makes it a standard choice for furnace parts, burners, radiant tubes and kiln fixtures.
Exact specification, availability and commercial details are confirmed against your enquiry.
Product forms and standards
| Form | Standard |
|---|---|
| Pipes | ASTM A312 / ASME SA312 TP310S |
| Tubes | ASTM A213 TP310S |
| Sheets & plates | ASTM A240 / ASME SA240 Type 310S |
| Round bars | ASTM A276 / A479 Type 310S |
| Butt-weld fittings | ASTM A403 WP310S |
| Flanges | ASTM A182 F310 |
Equivalent grades
| Grade | UNS | Werkstoff Nr. | EN / BS | JIS |
|---|---|---|---|---|
| SS 310S | S31008 | 1.4845 | X8CrNi25-21 | SUS 310S |
Chemical composition, %
| Grade | C | Mn | Si | P | S | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|---|
| SS 310S | ≤ 0.08 | ≤ 2.00 | ≤ 1.50 | ≤ 0.045 | ≤ 0.030 | 24.0 – 26.0 | 19.0 – 22.0 | ≤ 0.75 |
Mechanical properties
| Property | Value |
|---|---|
| Tensile strength | ≥ 515 MPa |
| Yield strength (0.2%) | ≥ 205 MPa |
| Elongation | ≥ 40% |
| Hardness | ≤ 217 HB |
Values per ASTM A240, annealed. Confirm against the current edition of the standard and your purchase specification.
Density: 7.98 g/cm³
Applications
- Furnace parts and radiant tubes
- Burner and combustion components
- Heat-treatment baskets and fixtures
- Kilns and cement plant parts
Questions buyers ask
What are the equivalent grades of SS 310S?
SS 310S is UNS S31008, Werkstoff 1.4845, EN X8CrNi25-21 and JIS SUS 310S.
In which forms is SS 310S available?
Pipes to ASTM A312 / ASME SA312 TP310S; Tubes to ASTM A213 TP310S; Sheets & plates to ASTM A240 / ASME SA240 Type 310S; Round bars to ASTM A276 / A479 Type 310S; Butt-weld fittings to ASTM A403 WP310S; Flanges to ASTM A182 F310.
What is the density of SS 310S?
About 7.98 g/cm³ (7,980 kg/m³).
Where is Steel Impex India located?
Steel Impex India is at 231/235, Sant Sena Maharaja Marg, 2nd Kumbharwada, Mumbai 400004, and supplies across India.