SS 310S Stainless Steel
High-chromium, high-nickel heat-resistant grade for service up to about 1100 °C.
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What is SS 310S?
SS 310S (UNS S31008, EN 1.4845) is an austenitic heat-resistant stainless steel containing 24.0–26.0% chromium and 19.0–22.0% nickel. High-chromium, high-nickel heat-resistant grade for service up to about 1100 °C. It is non-magnetic in the annealed condition, has a density of 7.98 g/cm³ and a minimum tensile strength of 515 MPa, and is used mainly for furnace parts and muffles, kilns and burners and heat-treatment fixtures.
- Type Austenitic heat-resistant
- Equivalents UNS S31008 · EN 1.4845 · SUS 310S
- Density 7.98 g/cm³
- Strength (min) 515 MPa tensile · 205 MPa yield
- Magnetic? Non-magnetic in the annealed condition
- Main uses Furnace parts and muffles, kilns and burners, heat-treatment fixtures
What is the chemical composition of SS 310S?
Typical ASTM A240 limits, % by weight (single values are maximums).
| C | Mn | Si | P | S | Cr | Ni |
|---|---|---|---|---|---|---|
| 0.08 max | 2.00 max | 1.50 max | 0.045 max | 0.030 max | 24.0 – 26.0 | 19.0 – 22.0 |
What are the mechanical properties of SS 310S?
| Tensile strength (min) | 515 MPa |
|---|---|
| Yield strength 0.2% (min) | 205 MPa |
| Elongation (min) | 40% |
| Hardness (max) | 95 HRB / 217 HB max |
| Density | 7.98 g/cm³ |
What is the equivalent of SS 310S?
| ASTM / AISI | UNS | EN / W.Nr. | DIN | JIS |
|---|---|---|---|---|
| 310S | S31008 | 1.4845 | X8CrNi25-21 | SUS 310S |
Where is SS 310S used?
- Furnace parts and muffles
- Kilns and burners
- Heat-treatment fixtures
- Radiant tubes
- Boiler internals
Can SS 310S be welded?
Weldable with matching ER310 filler. Keep heat input moderate; 310S is not intended for wet corrosion service, so weld cleaning matters less than in 316L.
Forming and machining
Forms reasonably well; machining is similar to 304 but slightly tougher.
SS 310S sizes we supply
Sheets, plates and round bars for furnace parts; pipes on order.
SS 310S price compared with 304
Well above 316 because of its 19–22% nickel and 24–26% chromium. For today's rate, send us your size and quantity.
Our advice
Choose 310S for oxidising atmospheres at high temperature. It is not intended for wet corrosion service.
Values are typical ASTM A240 limits for flat products and are for guidance only. Always refer to the mill test certificate supplied with the material.
SS 310S — FAQs
What is the chemical composition of SS 310S?
SS 310S contains up to 0.08% carbon, up to 2.00% manganese, up to 1.50% silicon, up to 0.045% phosphorus, up to 0.030% sulphur, 24.0–26.0% chromium and 19.0–22.0% nickel, with the balance iron (typical ASTM A240 limits).
What is the equivalent of SS 310S?
SS 310S is UNS S31008, EN 1.4845 (X8CrNi25-21) and SUS 310S in the Japanese standard.
What is the density of SS 310S?
The density of SS 310S is about 7.98 g/cm³ (7980 kg/m³).
Where can I buy SS 310S in Vadodara?
Sagar Sales Corporation supplies SS 310S sheet, plate, round bar, pipe, tube, flanges in Vadodara with mill test certificates. Contact us for today's rate.
Get today's SS 310S rate
Tell us the grade, size, finish and quantity. We check stock and send a per-kg rate with dispatch date — usually the same working day.
- Rates direct from Vadodara stock
- Mill test certificate with every lot
- Cut-to-size and delivery all over India