GNEE can supply 310S stainless steel hot-rolled medium and heavy plates in accordance with ASTM A240/A240M standards (as well as equivalent standards such as ASME SA-240, UNS S31008, and EN 1.4845). These plates are specifically designed for long-term service under extreme conditions below 1050°C, where they are exposed to high-temperature oxidation, carburization, and sulfidation. They are a reliable base material for manufacturing industrial furnace shells, radiant tubes, reformer tubes, high-temperature kiln fixtures, and heat treatment baskets.
We provide plates in hot-rolled, solution annealed, and pickled conditions. The standard thickness range is from 6 mm to 100 mm, with widths up to 2000 mm, and lengths customizable according to customer requirements. Value-added services such as flame cutting and plasma cutting are also available.
Our ASTM A240 310S stainless steel hot-rolled plates offer excellent high-temperature oxidation resistance. In continuous service environments at 1100°C, their oxidation resistance is significantly superior to that of 304H and 321H, effectively preventing premature spalling of oxide scale. At 1000°C, the material still maintains a high-temperature creep rupture strength of ≥30 MPa, demonstrating outstanding resistance to creep and carburization.
We ensure that the chemical composition, mechanical properties, and inspection results (including optional ultrasonic testing, UT) of each batch comply with the relevant standards. All materials are supplied with an EN 10204 3.1 mill test certificate.
310/310S stainless steel plate specifications
| Product Name | stainless steel plate/sheet | |||
| Commodity | Austenitic, Ferritic, Martensitic, Duplex, Cold rolled, Hot rolled | |||
| Grade | 201, 202, 301, 304, 304j1, 304L, 321, 309s, 310s | |||
| Standard | ISO, JIS, ASTM, AS, EN, GB,DIN, JIS etc | |||
| surface | N0.1, N0.2, N0.3, N0.4, N0.5, N0.6, N0.7, N0.8, 2D, 2B, HL, BA, 6K, 8K, etc | |||
| Length | 1000mm-11000mm or as customer' s requirement | |||
| Thickness | 0.3-100mm | |||
| Width | 600mm, 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm or as customer' s requirement | |||
| MOQ | 1MT | |||
| Trade Term | FOB, CFR, CIF | |||
| Loading port | Shanghai, Qingdao, Tianjin, etc | |||
| Payment terms | T/T or West Union | |||
| Delivery time | 3-15 days subject to the clients' requirement and quantity | |||
Chemical composition
| Grade | C(Max) | Mn(Max) | P(Max) | S(Max) | Si(Max) | Cr | Ni | Mo | N(Max) | Cu/Others |
| 310S | 0.08 | 2.00 | 0.045 | 0.030 | 1.500 | 24.00-26.00 | 19.00-22.00 | - | - | - |
Mechanical Properties
The mechanical properties of 310, 310S, and 310H stainless steels at room temperature according to ASTM A240 and EN 10088-2:
| Property | 310/310S/310H |
|---|---|
| Tensile Strength (min) | 515 MPa (75 ksi) |
| Yield Strength (0.2% Offset, min) | 205 MPa (30 ksi) |
| Elongation in 50mm (min) | 40% |
| Hardness (max) | 217 HB (95 HRB) |
ASTM A240 Type 310s Plate Weight Chart
| Size (mm) | Weight per plate (Kg) |
Size(mm) | Weight per plate (Kg) |
|---|---|---|---|
| 4000 x 2000 x 2.0 | 136.0 | 3000 x 1500 x 5.0 | 191.0 |
| 4000 x 2000 x 3.0 | 204.0 | 4000 x 2000 x 5.0 | 340.0 |
| 2500 x 1250 x 4.0 | 106.0 | 2500 x 1250 x 6.0 | 159.0 |
| 3000 x 1500 x 4.0 | 153.0 | 3000 x 1500 x 6.0 | 230.0 |
| 4000 x 2000 x 4.0 | 272.0 | 4000 x 2000 x 6.0 | 408.0 |
| 2500 x 1250 x 5.0 | 133.0 |
310 vs.310s ss vs 310h ss
310, 310S, and 310H are all heat-resistant austenitic stainless steels containing 25% chromium and 20% nickel, specifically designed for applications in high-temperature environments. The primary distinction among them lies in their carbon content: 310S is a low-carbon variant (< 0.08%) engineered to provide superior corrosion resistance; 310H is a high-carbon variant (0.04%–0.10%) designed to offer exceptional creep strength; while the standard 310 grade features a relatively higher carbon content range (up to 0.25%).
ASTM A240 310S Stainless Steel Hot-Rolled Plates HS Code
| Item Description | Material Grade | Product Form | Processing Method | HS Code |
|---|---|---|---|---|
| ASTM A240 310S Stainless Steel Plate | 310S (UNS S31008) | Plate / Sheet (≥ 6 mm) | Hot-Rolled | 7219.22 |
| ASTM A240 310S Stainless Steel Plate (Pickled) | 310S | Plate | Hot-Rolled + Pickled | 7219.22 |
| ASTM A240 310S Stainless Steel Plate (Cut-to-Size) | 310S | Plate (Processed) | Hot-Rolled | 7219.22 / 7219.90 |
Lead Time:
3-7 business days.
Applicable to: Common specifications (thickness 3mm-20mm, width 1500/1800/2000mm). Production Order:
30-50 days (depending on the steel mill's production schedule).
Applicable to: Extra-thick plates (>50mm), special widths, extra-long plates, or orders with special performance requirements.
Inspection & Testing:
The following core tests are typically required: Chemical composition analysis.
Ultrasonic testing (UT): For extra-thick plates or pressure vessel plates, compliance with ASTM A435 or A578 standards is usually required.
Metallographic/Corrosion testing (optional): Intergranular corrosion testing (ASTM A262 Practice A/E).
Packaging:
Reinforcement:High-strength steel strapping is used for transverse and longitudinal binding to prevent unpacking during transport.
Corner protection: Metal corner protectors are added to the contact edges of the strapping to prevent the steel straps from damaging the edges of the plates.
Marking: Each plate is marked with: Grade (310S), Applicable Standard (ASTM A240), Heat No., Dimensions, and Manufacturer's Name.
