High-Temperature Austenitic Grade | UNS S31008 | EN 1.4845 | JIS SUS 310S
As a leading 310S cold rolled stainless steel coil supplier in China, Huaxiao Metal provides full-width cold rolled coils from 0.2mm to 3.0mm thickness, sourced from premium mills including TISCO, Baosteel, and Yongjin. All coils come with EN 10204 3.1 MTC and comply with ASTM A240/A240M standards.
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Product Specifications
Complete technical specifications for our 310S cold rolled stainless steel coil. All tolerances comply with ASTM A480M unless otherwise stated.
| Parameter | Specification | Details / Tolerance |
|---|---|---|
| Grade | 310S (UNS S31008) | EN 1.4845 / JIS SUS 310S / GB 06Cr25Ni20 |
| Thickness Range | 0.2mm – 3.0mm | Cold rolled, per ASTM A480M (see tolerance table below) |
| Width Range | 600mm – 1500mm | Standard widths: 1000mm, 1219mm, 1250mm, 1500mm; custom slitting available |
| Coil ID (Inner Diameter) | 508mm (20″) / 610mm (24″) | 610mm standard for export; 508mm available on request |
| Coil Weight | 3 – 10 MT per coil | Max 10 MT; min 3 MT for single-coil orders |
| Edge Type | Mill Edge / Slit Edge | Slit edge standard for cold rolled; mill edge available on request |
| Surface Finish | 2B, 2D, BA, No.4, HL, 8K | 2B standard; others per order specification |
| Temper / Condition | Annealed (Solution Annealed) | Annealed at 1030-1150°C, rapid cool. Custom temper available |
| Flatness Tolerance | per ASTM A480M Table A1.1 | ≤ 6mm/m for widths ≤ 1200mm; ≤ 10mm/m for widths > 1200mm |
| Surface Protection | PVC film (optional) | Standard: 70-micron white PE film; Laser film available for BA finish |
| Coil Form | Coil / Cut-to-Length Sheet | Cut-to-length: 1000-6000mm; sheared blanks available |
| Packaging | Seaworthy export packing | Wooden pallet + steel strapping + waterproof paper + wooden cradle |
| Mill Source | TISCO / Baosteel / Yongjin / Tsingshan | Mill certificate of origin provided with each shipment |
| Inspection | 100% Visual + Dimensional | UT inspection available on request; PMI (Positive Material Identification) for grade verification |
| Material Certification | EN 10204 3.1 MTC (standard) | EN 10204 3.2 MTC available (third-party, e.g., SGS, BV, TUV) |
| MOQ (Minimum Order) | 1 Ton | Sample orders < 1 ton negotiable (freight surcharge applies) |
| Lead Time | 7-15 days (stock) / 25-35 days (production) | Stock items ship within 7 days; production orders 25-35 days from deposit |
| Payment Terms | T/T 30% deposit + 70% before shipment | L/C at sight |
| Incoterms | FOB Shanghai / CIF / CFR / DAP / EXW | FOB Shanghai most common; door-to-door DAP available for South America |
Thickness Tolerance (ASTM A480M)
| Nominal Thickness | Width ≤ 1000mm | 1000mm < Width ≤ 1300mm | 1300mm < Width ≤ 1500mm |
|---|---|---|---|
| 0.20 – 0.30mm | ± 0.015mm | ± 0.020mm | ± 0.025mm |
| 0.31 – 0.50mm | ± 0.020mm | ± 0.025mm | ± 0.030mm |
| 0.51 – 0.80mm | ± 0.025mm | ± 0.030mm | ± 0.035mm |
| 0.81 – 1.00mm | ± 0.030mm | ± 0.035mm | ± 0.040mm |
| 1.01 – 1.50mm | ± 0.040mm | ± 0.045mm | ± 0.050mm |
| 1.51 – 2.00mm | ± 0.050mm | ± 0.055mm | ± 0.060mm |
| 2.01 – 2.50mm | ± 0.055mm | ± 0.060mm | ± 0.065mm |
| 2.51 – 3.00mm | ± 0.060mm | ± 0.065mm | ± 0.070mm |
Width Tolerance (Slit Edge)
| Nominal Thickness | Width ≤ 1250mm | 1250mm < Width ≤ 1500mm | Mill Edge |
|---|---|---|---|
| 0.20 – 1.00mm | +1.0 / -0mm | +1.5 / -0mm | +10 / -0mm |
| 1.01 – 2.00mm | +1.5 / -0mm | +2.0 / -0mm | +10 / -0mm |
| 2.01 – 3.00mm | +2.0 / -0mm | +2.5 / -0mm | +12 / -0mm |
Available Surface Finishes
| Finish | Description | Surface Roughness (Ra) | Typical Application |
|---|---|---|---|
| 2B | Cold rolled, annealed, pickled, skin-passed | 0.1-0.5 μm | General purpose, most common |
| 2D | Cold rolled, annealed, pickled (no skin pass) | 0.4-1.0 μm | Deep drawing, forming |
| BA | Bright annealed | 0.05-0.2 μm | Decorative, reflective surfaces |
| No.4 | Brushed (abrasive 150-180 grit) | 0.4-1.2 μm | Architectural, food equipment |
| HL | Hairline finish | 0.1-0.4 μm | Decorative panels, elevators |
| Mirror (8K) | Polished to mirror finish | <0.1 μm | Decorative, architectural |
310 vs 310S: What's the Difference?
The distinction between Grade 310 and Grade 310S lies primarily in carbon content, which directly affects weldability, high-temperature performance, and corrosion resistance. Understanding this difference is critical for selecting the right material for your application.
| Property | SS 310 (UNS S31000 / 1.4841) | SS 310S (UNS S31008 / 1.4845) |
|---|---|---|
| Carbon Content | 0.15% max (higher carbon) | 0.08% max (low carbon) |
| Weldability | Moderate – carbide precipitation risk at 425-900°C | Excellent – reduced sensitization |
| High-Temperature Strength | Higher creep strength at extreme temps | Slightly lower, but superior long-term stability |
| Intergranular Corrosion | Susceptible after welding | Resistant – suitable for welded structures |
| Continuous Service Temp | Up to 1150°C | Up to 1100°C |
| Typical Applications | Furnace parts, radiant tubes (non-welded) | Welded furnace components, heat exchangers, exhaust systems |
| Price Difference | ~5-8% lower | ~5-8% premium |
| Recommendation | For non-welded high-stress parts | For welded assemblies and most applications |
Looking for a reliable 310s Cold Rolled Stainless Steel Coil manufacturer? Contact Huaxiao Metal today to get the best price and fast delivery.
310 310S Stainless Steel Data Sheet
Grade Specifications for Stainless Steel 310 / 310S Coils
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
|---|---|---|---|---|---|---|---|
| SS 310 | 1.4841 | S31000 | SUS 310 | 310S24 | 20Ch25N20S2 | – | X15CrNi25-20 |
| SS 310S | 1.4845 | S31008 | SUS 310S | 310S16 | 20Ch23N18 | – | X8CrNi25-21 |
S31008 Chemical component ASTM A240 :
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
|---|---|---|---|---|---|---|---|---|---|
| SS 310 | 0.015 max | 2.0 max | 0.15 max | 1.00 max | 0.015 max | 24.00 – 26.00 | 0.10 max | 19.00 – 21.00 | 54.7 min |
| SS 310S | 0.08 max | 2.0 max | 1.00 max | 0.045 max | 0.030 max | 24.00 – 26.00 | 0.75 max | 19.00 – 21.00 | 53.095 min |
Mechanical Properties (ASTM A240)
| Property | SS 310 | SS 310S | Test Standard |
|---|---|---|---|
| Tensile Strength (min) | 515 MPa | 515 MPa | ASTM A370 |
| Yield Strength (min, 0.2% offset) | 205 MPa | 205 MPa | ASTM A370 |
| Elongation (min, in 50mm) | 40% | 40% | ASTM A370 |
| Hardness (max) | 90 HRB | 90 HRB | ASTM E18 / E10 |
| Density | 7.98 g/cm3 (0.288 lb/in3) | ASTM E20 | |
| Melting Range | 1370-1450°C (2500-2640°F) | ASTM E794 | |
If you are interested in our 310/310s stainless steel coils or have any questions, please contact our sales team. We will provide detailed product information, customized suggestions, and quotations.
High-Temperature Performance
310S is engineered for sustained operation in extreme heat. Its exceptional oxidation resistance stems from the high chromium content, which forms a stable protective oxide scale at elevated temperatures.
Maximum Service Temperature Comparison
Oxidation Resistance
Forms a self-healing chromium oxide layer that provides exceptional protection against scaling and oxidation up to 1100°C in air and oxidizing atmospheres.
Important: In sulfur-containing atmospheres above 600°C, oxidation resistance may be reduced. For such environments, consider Grade 314 (higher silicon) or consult our technical team for application-specific recommendations.
Application of 310s Stainless Steel Coil:
310S heat-resistant stainless steel is a variant of 310 stainless steel, S for special purposes. Domestic grade 0Cr25Ni20, American grade 310S, or 2520, duplex stainless steel, is used for high-temperature furnace tube manufacturing. 310S stainless steel pipe has good oxidation and corrosion resistance, because of a higher percentage of chromium and nickel, 310s have a much better creep strength and can continue working at high temperatures, with good high-temperature resistance.
310S stainless steel maximum operating temperature of 1200°C, continuous use temperature of 1150°C. Uses: Exhaust pipes, microwave ovens, high-temperature furnace gallbladders, cremators, and other steels that require heat resistance, high heat/high-temperature contact parts.
Whether you are in the petrochemical, energy or construction industries, Huaxiao Metal can provide 310S cold rolled stainless steel coils to meet your application needs.
Tell us your application needs – we will recommend the most suitable stainless steel coil solution for you!
Package of Cold Rolled 310s Stainless Steel Coil:
Huaxiao stainless steel and metal ensure the best packaging quality because it plays an important role in international transportation, especially when the goods reach the final destination through various channels, we pay special attention to packaging.
We pack our goods in a variety of ways according to the product. We package our products in a variety of ways, such as:–
• Boxes and crates
• Shrink packaging
• Paper box
• Wooden pallets
• wooden box
• wooden box
If you are interested in our 310/310s stainless steel coils or have any questions, please contact our sales team. We will provide detailed product information, customized suggestions, and quotations.
How to Buy 310S Stainless Steel Coils from China?
Our streamlined procurement process is designed for international B2B buyers. Below is our recommended workflow with 310S-specific guidance:
| Step | Action | 310S-Specific Guidance |
|---|---|---|
| 1 | Define your specifications | Confirm: thickness, width, surface finish, standard (ASTM/EN/JIS), and application temperature range |
| 2 | Contact us for quotation | Send via WhatsApp +86-13761906384 or our inquiry form. Include grade (310 vs 310S) and quantity |
| 3 | Verify material certification | Request EN 10204 3.1 MTC. Verify C ≤ 0.08%, Cr 24-26%, Ni 19-22% against ASTM A240 |
| 4 | Request sample (optional) | For high-temp applications, request oxidation test data at your operating temperature |
| 5 | Confirm order & payment | MOQ: 1 ton. Payment: T/T (30% deposit, 70% before shipment) or L/C at sight |
| 6 | Production & quality control | Production time: 7-15 days. Mill test includes chemical analysis + mechanical testing |
| 7 | Shipping & logistics | HS Code: 7219.23.00. LCL available for small orders. Seaworthy export packaging |
| 8 | Customs clearance | We provide: Commercial Invoice, Packing List, B/L, C/O, MTC. South American buyers: confirm C/O requirements |
| 9 | Receive & inspect | Check MTC against received material. Verify thickness tolerance per ASTM A480M |
FAQ
What is 310S stainless steel?
310S (UNS S31008 / EN 1.4845) is a high-alloy austenitic stainless steel containing 24-26% chromium and 19-22% nickel. It is specifically designed for high-temperature applications up to 1100°C, offering excellent oxidation resistance, creep strength, and carburization resistance. The “S” designation indicates a low-carbon variant (C ≤ 0.08%) with superior weldability compared to Grade 310.
What is the difference between 310 and 310S?
The primary difference is carbon content: 310 has a maximum of 0.15% carbon, while 310S is limited to 0.08%. This makes 310S more weldable and resistant to intergranular corrosion after welding. 310 offers slightly higher creep strength at extreme temperatures, while 310S is preferred for welded assemblies and most general high-temperature applications.
What temperature can 310S withstand?
310S can operate continuously at temperatures up to 1100°C (2012°F) in oxidizing atmospheres. For intermittent service, the recommended maximum is approximately 1035°C (1895°F). In sulfur-containing environments, the practical limit may be reduced to around 600-750°C.
Is 310S magnetic?
310S is non-magnetic in the annealed condition, like all austenitic stainless steels. However, cold working (such as cold rolling) can induce partial martensitic transformation, resulting in slight magnetism. The level of magnetism depends on the degree of cold work and thickness reduction.
What is the MOQ and lead time for 310S coil?
Our minimum order quantity is 1 ton. For in-stock material, lead time is 7-15 days from deposit confirmation. For production orders (custom thickness/width/surface), lead time is 25-35 days. Sample orders below 1 ton are negotiable with a freight surcharge. Payment terms: T/T (30% deposit, 70% before shipment) or L/C at sight.
Do you provide EN 10204 3.1 MTC with 310S coils?
Do you provide EN 10204 3.1 MTC with 310S coils?
What surface finishes are available for 310S cold rolled coil?
We offer six surface finishes:
2B (standard, most common), 2D (for deep drawing), BA (bright annealed, reflective), No.4 (brushed), HL (hairline), and 8K (mirror polished).
For 310S high-temperature applications, 2B is the most commonly selected finish. PVC protective film (70-micron white PE) can be applied to protect the surface during transit.
What is 310S stainless steel used for?
310S is primarily used in high-temperature applications including: furnace components, heat treatment baskets, petrochemical reformer tubes, exhaust manifolds, boiler parts, incinerator liners, flare stacks, and heat exchanger tubes. It is also used in food processing equipment requiring both heat and corrosion resistance.
310S vs 316L: which is better for high temperature?
For high-temperature applications, 310S is significantly superior. It withstands continuous service up to 1100°C vs 316L’s 760°C. The higher Cr (24-26% vs 16-18%) and Ni (19-22% vs 10-14%) content in 310S provides much better oxidation and creep resistance. However, 316L is better for corrosion resistance in chloride environments and is more cost-effective for lower-temperature applications.
What standards does 310S comply with?
Our 310S cold rolled coils comply with multiple international standards: ASTM A240/A240M (USA), EN 10088-2 (Europe), JIS G4305 (Japan), GB/T 4237 (China). Material Test Certificates (MTC) are provided per EN 10204 3.1 (or 3.2 on request). Dual or multi-standard certification is available upon request.
Request a Quote for 310S Cold Rolled Coil
Fill out the form below with your specifications. We will respond within 12 hours with a detailed quotation including pricing, lead time, and MTC samples.