1.4845 stainless steel pipe maximum temperature limit
Why can 1.4845 stainless steel pipe withstand high temperature?
As a 25Cr-20Ni series high-chromium-nickel austenitic stainless steel, 1.4845 stainless steel pipe achieves high-temperature performance of 1150℃ continuous use and 1200℃ short-term tolerance by virtue of the high alloy system of 25% chromium and 20% nickel and ≤0.08% low carbon design.
In addition, 24-26% chromium forms a dense Cr₂O₃ oxide film at high temperature to block oxygen diffusion, 19-22% nickel stabilizes the austenite structure to delay creep, and the low carbon characteristics reduce the risk of intergranular corrosion, making the performance of the welding heat-affected zone more stable, making it the preferred material under high-temperature conditions.
1.4845 Stainless Steel Data Download
1.4845 Stainless Steel Pipe (310S / UNS S31008) – Temperature Limits & Properties
| Parameter | Value | Unit |
|---|---|---|
| Maximum Continuous Use | 1150 | °C |
| Short-Term Exposure Limit | 1200 | °C |
| Oxidation Resistance | Up to 1100 (long-term) | °C |
| Creep Strength | 100 MPa at 800 | °C |
| Thermal Expansion | 16.0 × 10⁻⁶ | K⁻¹ |
| Melting Point | 1398–1454 | °C |
| Heat Treatment | Solution annealing at 1040–1150 | °C |
| Industry Standards | ASTM A213 / ASME SA213, EN 10088-1, GB/T 14976 | – |
What is the difference between 310S and 310 in high temperature use?
| Property | 310S (1.4845) | 310 (1.4845) |
|---|---|---|
| Max Continuous Use | 1150°C | 1100°C |
| Weldability | Excellent (low carbon) | Requires strict process control |
| Creep Strength (800°C) | 100 MPa | 80 MPa |
| Typical Applications | Welded high-temperature equipment | Non-welded structural components |
Can 1.4845 pipe be used in heat exchangers?
Yes - it's a preferred material for heat exchanger tubing in thermal oil, hot gas, or steam environments up to 1150°C.
Is 1.4845 pipe suitable for continuous furnace service?
Absolutely. It offers superior oxidation and scaling resistance in continuous operation compared to most other stainless steel grades.
Specifications & Availability
We supply 1.4845 stainless steel pipes with the following specs:
✅ Sizes: 1/2" to 24" OD, SCH 10 to SCH 160
✅ Manufacturing: Seamless (ASTM A312 / EN 10216-5)
✅ Surface: Pickled, polished (Ra ≤ 0.8μm)
✅ Certificates: EN 10204 3.1/3.2, PED, AD 2000
✅ Optional Testing: PMI, hydro test, intergranular corrosion test
1.4845 stainless steel pipe is the go-to solution for extreme-temperature industrial applications. Whether you're designing furnace tubes, thermal processing systems, or high-temp ducts, we've got you covered.
👉 Contact us today for a custom quote, datasheet, or engineering consultation!
