ASTM A240 310S Hot Rolled Stainless Steel Plate with No.1 Finish for 1100°C Heat Resistant Applications
ASTM A240 310S hot rolled stainless steel plate is a premium high-alloy austenitic heat resistant grade engineered for continuous service in oxidizing atmospheres at temperatures up to 1100°C. With 24-26% chromium and 19-22% nickel, 310S delivers exceptional oxidation and carburization resistance, making it the preferred material for furnace components, heat treatment fixtures, and high-temperature processing equipment.
The low carbon content (S-grade, ≤0.08% C) prevents embrittlement from carbide precipitation during prolonged thermal exposure. Available in No.1 finish (hot rolled, annealed, and pickled), 310S plate offers industrial-grade surface quality ready for heavy fabrication and welding.
| Parameter | Specification |
|---|---|
| Standard | ASTM A240 / ASME SA240 |
| Steel Grade | 310S (UNS S31008, EN 1.4845) |
| Manufacturing Process | Hot Rolled |
| Thickness Range | 3.0mm - 80mm |
| Width Range | 1500mm, 2000mm, 2500mm |
| Length Range | 6000mm, 12000mm or Custom |
| Surface Finish | No.1 (Hot Rolled, Annealed, Pickled) |
| Max Service Temperature | 1100°C (Continuous), 1035°C (Intermittent) |
| Edge Condition | Mill Edge, Trimmed Edge |
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤0.08 |
| Manganese (Mn) | ≤2.00 |
| Silicon (Si) | ≤1.50 |
| Phosphorus (P) | ≤0.045 |
| Sulfur (S) | ≤0.030 |
| Chromium (Cr) | 24.0 - 26.0 |
| Nickel (Ni) | 19.0 - 22.0 |
| Property | Value |
|---|---|
| Tensile Strength (min) | ≥515 MPa |
| Yield Strength (0.2% offset, min) | ≥205 MPa |
| Elongation (min) | ≥40% |
| Hardness (max) | ≤217 HBW / ≤95 HRB |
- Heat Treatment: Furnace muffles, radiant tubes, retorts, annealing covers, burner nozzles
- Petrochemical: Cracking furnace tubes, reformer components, thermal oxidizer shells
- Power Generation: Boiler superheater supports, burner components, ash hopper liners
- Ceramic & Glass: Kiln furniture, lehr rolls, glass tank components
- Incineration: Municipal and medical waste incinerator components, afterburner chambers
- Metallurgical: Heat treating baskets, carburizing boxes, salt bath pots
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