ASTM A240 310S Hot Rolled Stainless Steel Plate No.1 Finish 1100°C Heat Resistant Furnace Component Grade
Product Overview
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.
Product Specifications
| 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 |
Chemical Composition (wt%)
| 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 |
Mechanical Properties
| Property |
Value |
| Tensile Strength (min) |
≥515 MPa |
| Yield Strength (0.2% offset, min) |
≥205 MPa |
| Elongation (min) |
≥40% |
| Hardness (max) |
≤217 HBW / ≤95 HRB |
Application Areas
- 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