If you are looking for a high-temperature resistant, oxidation-resistant, and stable stainless steel hot-rolled plate for high-temperature furnace equipment, heat treatment systems, petrochemical, energy, or industrial kiln projects, Gnee Steel can provide a long-term and stable supply of SUS310S stainless steel hot-rolled plates. We offer a full range of specifications, comprehensive testing, and reliable delivery, making our products widely used in high-temperature conditions and demanding environments.
What Is SUS310S Stainless Steel Hot Rolled Plate?
SUS310S hot-rolled stainless steel plate is a low-carbon, high-alloy austenitic stainless steel designed for excellent heat resistance and oxidation resistance, capable of operating effectively at temperatures up to 1150°C (2100°F). This hot-rolled 25Cr-20Ni stainless steel exhibits high strength, excellent creep resistance, and improved weldability due to reduced carbide precipitation.
Key Advantages of SUS310S Stainless Steel Hot Rolled Plate
Excellent High-Temperature Strength
SUS310S maintains high tensile strength and creep strength at high temperatures (continuous use up to 1150°C, short-term use up to 1200°C), outperforming 304/316 grade stainless steel. It is an ideal choice for furnace components, kilns, and heat treatment equipment.
Corrosion Resistance
It performs well in mildly corrosive environments (including nitric acid, sulfates, and certain organic acids), but its resistance to chloride corrosion is not as good as 316L; suitable for chemical processing vessels operating at high temperatures.
SUS310S Stainless Steel Weldability
It can be welded using GTAW, SMAW, or GMAW welding methods, using low-carbon welding rods/wires (such as 310S or 309L), and post-weld heat treatment if necessary, without significantly reducing high-temperature performance.
SUS310S Stainless Steel Plate Equivalent Grades
| Standard | Equivalent Grade |
|---|---|
| ASTM/ASME | ASTM A240 Type 310S / UNS S31008 |
| EN | EN 1.4845 (X8CrNi25-21) |
| DIN | W.Nr. 1.4845 |
| GB (China) | 0Cr25Ni20 / 06Cr25Ni20 (GB/T 4237) |
| ISO | X8CrNi25-21 |
JIS G4304 Austenitic SUS310S stainless steel plate Chemical Composition (Typical, wt%)
| Element | SUS310S (JIS G4304) | ASTM 310S (UNS S31008) |
|---|---|---|
| C | ≤ 0.08 | ≤ 0.08 |
| Cr | 24.0 – 26.0 | 24.0 – 26.0 |
| Ni | 19.0 – 22.0 | 19.0 – 22.0 |
| Si | ≤ 1.50 | ≤ 1.50 |
| Mn | ≤ 2.00 | ≤ 2.00 |
| P | ≤ 0.045 | ≤ 0.045 |
| S | ≤ 0.030 | ≤ 0.030 |
ASTM A240 Type 310S plate Mechanical Properties
| Property | SUS310S / ASTM 310S Typical Values |
|---|---|
| Tensile Strength | ≥ 520 MPa |
| Yield Strength (0.2%) | ≥ 205 MPa |
| Elongation | ≥ 40% |
| Hardness (HRB) | ≤ 95 |
| Max Service Temp (Dry) | ~1100–1150°C |
SUS310S Hot Rolled Plate vs 309S / 316 Stainless Steel
| Grade | Max Temp | Oxidation Resistance | Typical Use |
|---|---|---|---|
| 316 | ≤ 800°C | Moderate | General corrosion |
| 309S | ≤ 1000°C | Good | Medium heat |
| SUS310S | ≤ 1100°C | Excellent | Extreme heat |
What is SUS310S stainless steel plate used for?
Thermal Processing & Furnaces: Used for conveyor belts, rollers, burner parts, annealing covers, retorts, muffles, and heat treatment baskets.
Petrochemical & Chemical Processing: Ideal for catalytic recovery systems, flares, recuperators, and vessels handling hot, corrosive materials.
Power Generation & Boilers: Applied in pulverized coal burners, coal gasifier internals, and tube hangers.
SUS310S Stainless Steel Plate Suppliers
Gnee offers SUS310S stainless steel hot-rolled plates with thicknesses ranging from 6mm to 100mm and standard widths from 1000mm to 2500mm, with customized lengths available to meet project requirements. Available surface finishes include hot-rolled (HR), pickling, and sandblasting, catering to various industrial and high-temperature applications.
Gnee maintains a sufficient inventory of SUS310S hot-rolled plates to quickly respond to bulk orders and long-term project supply needs. Each batch of products undergoes rigorous quality inspection, including chemical composition analysis, mechanical property testing, PMI testing, and ultrasonic testing (UT). Certificates such as EN 10204 3.1 or 3.2 are available upon request, ensuring material traceability and compliance with international standards.
