Stainless Steel 310 (1.4845)
Stainless Steel 310 (1.4845)
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Bespoke Manufacturing
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Various Gauges/Thicknesses
Bespoke Manufacturing
Instant Quote Service
Worldwide Delivery
Various Gauges/Thicknesses
Stephens Gaskets is a trusted UK manufacturer and supplier of Stainless Steel 310 (1.4845) – a high-temperature austenitic alloy designed for extreme environments.
Known for its outstanding oxidation resistance, thermal stability, and mechanical strength, Stainless Steel 310 performs reliably up to 1100 – 1150°C in continuous operation, making it ideal for furnace, refinery, and heat processing applications.
What Is Stainless Steel 310 (1.4845)?
Stainless Steel 310, also known as Werkstoff 1.4845 or X8CrNi25-21, is a high-chromium (24-26%) and high-nickel (19-22%) stainless alloy designed for superior performance at elevated temperatures.
It combines exceptional heat resistance with good mechanical strength and oxidation stability, even in continuous or cyclic thermal exposure.
Chemical Composition (Typical)
| Element | % Content |
|---|---|
| Chromium (Cr) | 24.0-26.0 |
| Nickel (Ni) | 19.0-22.0 |
| Carbon (C) | ≤ 0.20 |
| Manganese (Mn) | ≤ 2.00 |
| Silicon (Si) | ≤ 1.50 |
| Phosphorus (P) | ≤ 0.045 |
| Sulphur (S) | ≤ 0.030 |
| Iron (Fe) | Balance |
Key Benefits of Stainless Steel 310
| Benefit | Description |
|---|---|
| Exceptional Heat Resistance | Withstands temperatures up to 1150°C in continuous service. Ideal for kilns, furnaces, and exhaust systems. |
| Superior Oxidation Resistance | High chromium and nickel levels prevent scaling in oxidising atmospheres. |
| High Mechanical Strength | Retains ductility and toughness under long-term thermal stress. |
| Moderate Corrosion Resistance | Better than 304; suitable for oxidising and mildly reducing environments (not chloride-rich). |
| Thermal Fatigue & Creep Resistance | Performs under repeated heating and cooling cycles. |
| Good Fabrication & Weldability | Can be formed, machined, and welded using standard techniques. |
| Long Service Life | Durable, low-maintenance, and cost-effective over long-term operation. |
Applications of Stainless Steel 310
Stainless Steel 310 is engineered for thermal performance and mechanical reliability in high-temperature and oxidising environments.
| Sector | Application | Benefit |
|---|---|---|
| Furnace & Kiln Components | Linings, muffles, radiant tubes, retorts | Continuous operation at 1100-1150°C |
| Petrochemical & Refining | Reforming tubes, catalytic cracker parts | Withstands oxidising and carburising gases |
| Heat Exchangers & Recuperators | Waste gas recovery systems | Thermal cycling resistance |
| Industrial Ovens | Supports, insulation anchors, trays | Prevents distortion under repeated heating |
| Power Generation | Boiler baffles, superheaters, turbines | Maintains strength under high pressure and temperature |
| Chemical Processing | Reactors, vessels, expansion joints | Resistant to sulphidation and oxidising acids |
| Gaskets & Seals | High-temperature flanged joints | Retains integrity in demanding sealing environments |
Industry-Specific Materials
Stephens Gaskets uses stainless steel 310 alongside other high-performance materials to meet sector-specific requirements:
| Material | Use Case | Feature |
|---|---|---|
| 310 / 1.4845 | Furnaces, petrochemicals | Heat resistance up to 1150°C |
| 316 / 1.4401 | Marine, chemical | Chloride corrosion resistance |
| 321 / 1.4541 | Aerospace, exhausts | Titanium-stabilised for thermal strength |
| Inconel 600-625 | Power & nuclear | Extreme heat and oxidation resistance |
| Graphite & PTFE | Gaskets & seals | Chemical and temperature stability |
Pain Points & Solutions
| Pain Point | Solution |
|---|---|
| High Material Cost | We optimise yield through efficient cutting and batch manufacturing. |
| Moderate Corrosion Resistance | For chloride exposure, we recommend 316 or 625 alloys. |
| Heavier and Less Formable | In-house tooling ensures precision forming with reduced distortion. |
| Weld Sensitisation Risk | Controlled heat input and filler selection prevent carbide precipitation. |
| Not for Sulphur-Rich Environments | Inconel or 253MA may be better suited for sulphidation-prone systems. |
| Creep Deformation Above 1150°C | Design and material consulting provided to prevent overstressing. |
FAQs – Stainless Steel 310
What temperature can stainless steel 310 handle?
Up to 1100-1150°C in continuous service and 1200°C intermittently.
How does it compare to 304 or 316?
It performs better in high-temperature oxidation but offers less corrosion resistance than 316.
Can it be welded and formed?
Yes, though it requires appropriate fillers and controlled cooling to prevent sensitisation.
Can it be welded and formed?
Yes, though it requires appropriate fillers and controlled cooling to prevent sensitisation.
Is 310 suitable for sulphur or chloride environments?
No – 316 or Inconel are recommended alternatives.
Do you supply 310 in sheet, coil, or gasket form?
Yes – available as sheets, strips, and custom gaskets with certification and traceability.
Stephens Gaskets is your UK manufacturer and supplier of Stainless Steel 310 (1.4845).
From heat-resistant gaskets to furnace components, we deliver precision-engineered solutions with certification and reliability.
Call: 0121 544 5808 | Email: sales@stephensgaskets.co.uk
Request a quote for Stainless Steel 310 today.