JIS G4305 SUS 310S Cold Rolled Stainless Steel Coil Supplier

SUS310S Cold Rolled Stainless Steel Coil & Sheet | JIS G4305 310S Stainless Steel Strip Manufacturer & Exporter – Gangsteel

Gangsteel is a leading manufacturer and global exporter of premium JIS G4305 SUS310S cold rolled stainless steel coils, sheets, and strips. As a high-chromium, high-nickel austenitic heat-resisting grade (Grade 310S or UNS S31008), SUS310S provides exceptional oxidation resistance up to 1038°C (1900°F) in continuous service and excellent scaling resistance in cyclic high-temperature environments. With 24-26% chromium and 19-22% nickel, it offers superior performance in oxidizing, carburizing, and mildly sulfidizing atmospheres compared to lower-alloy grades like SUS304 or SUS316.

The low carbon content (≤0.08%) enhances weldability and resistance to intergranular corrosion after exposure to sensitization temperatures. Our advanced cold rolling facilities produce SUS310S with high-quality surface finishes (2B, BA, No.4, HL, Mirror), tight tolerances (±0.02 mm), and consistent properties fully compliant with JIS G4305 (Cold-rolled stainless steel plate, sheet and strip). Equivalent to ASTM A240 Type 310S, EN 1.4845 (X8CrNi25-21), and GB 06Cr25Ni20 or 0Cr25Ni20, Gangsteel's SUS310S products serve demanding industries worldwide including furnace construction, petrochemical processing, power generation, heat treatment equipment, and high-temperature exhaust systems.

This comprehensive product introduction details every aspect of our JIS G4305 SUS310S cold rolled stainless steel — from composition and properties (in tables) to manufacturing, applications, advantages, and why Gangsteel is your trusted partner for reliable, extreme high-temperature supply.

Introduction to SUS310S Stainless Steel

SUS310S is a heat-resisting austenitic stainless steel engineered for continuous service at elevated temperatures. Its high alloy content forms a stable, protective chromium oxide scale that resists oxidation, carburization, and sulfidation in oxidizing atmospheres. The low carbon variant (SUS310S) improves weldability and reduces sensitization risk compared to standard SUS310, making it suitable for welded components in thermal cycling conditions.

Non-magnetic in the annealed state, SUS310S provides good creep strength, thermal fatigue resistance, and moderate corrosion resistance in mildly aggressive environments. Gangsteel specializes in cold rolled SUS310S, optimizing it for forming, welding, and polishing in furnace, incinerator, and high-heat fabrication.

Chemical Composition of JIS G4305 SUS310S

Chemical Composition Table

Gangsteel's production maintains high Cr/Ni levels and low C for superior scaling, carburization, and cyclic oxidation resistance. Full chemical analysis and EN 10204 3.1 certificates are standard.

Mechanical Properties

In annealed condition per JIS G4305:

Mechanical Properties Table (Annealed)

SUS310S maintains useful strength and creep resistance at high temperatures.

Physical Properties

Physical Properties Table

These properties support excellent thermal stability in furnace and incinerator applications.

Equivalent Materials Comparison

Equivalent Materials Comparison Table

SUS310S provides superior high-temperature oxidation resistance compared to SUS309S or lower-alloy grades.

Manufacturing Process: Cold Rolled at Gangsteel

Gangsteel's process: hot rolling to intermediate thickness, annealing/pickling, multi-pass cold reduction in precision mills, final bright annealing/skin pass, slitting/edge trimming. Thickness: 0.3–3.0 mm (coils/sheets). Width: 600–1524 mm. In-line controls ensure tight tolerances and superior surfaces.

Finishes: 2B (standard matte), BA (bright annealed), No.4/HL (brushed), Mirror. Protective films and custom slitting available.

Available Forms, Sizes, and Specifications

• Cold rolled coils: 0.3–3.0 mm thick, up to 1524 mm wide
• Cold rolled sheets: Cut-to-length up to 6000 mm
• Strips: Narrow from 10 mm

Compliant with JIS G4305; optional ASTM A240/EN cross-certification. Tolerances per JIS or tighter.

Key Applications of SUS310S Cold Rolled Products

SUS310S excels in extreme high-temperature oxidizing environments:

Furnace and Heat Treatment

• Radiant tubes, muffles, annealing covers, retorts
• Furnace fans, shafts, conveyor belts

Petrochemical and Incineration

• Burners, calciners, waste incinerators
• Pyrolysis and cracking equipment

Power Generation and Industrial

• Boiler tube supports, thermowells, heat shields
• Cement kiln components, rotary kilns

Other High-Temp Uses

• Glass melting, ceramic kilns
• High-temperature exhaust systems

Its oxidation resistance suits continuous or cyclic service above 1000°C.

Advantages of Choosing SUS310S Stainless Steel

• Exceptional oxidation and scaling resistance up to 1038°C (1900°F) continuous
• Good resistance to carburization and sulfidation
• Moderate creep and high-temperature strength
• Weldable with low carbon for reduced IGC risk
• Formable for complex heat-resistant components
• Superior performance vs. SUS304/316 at extreme temperatures
• Recyclable and cost-effective for furnace applications

Corrosion and Oxidation Resistance

Forms stable Cr oxide scale; excellent in oxidizing atmospheres, resists carburization/sulfidation. Good in mild corrosives; not for severe chlorides (use 316/317). Oxidation resistance ~1038°C continuous, ~1010°C cyclic.

Weldability and Fabrication

Good weldability with TIG/MIG; low C minimizes sensitization. Use ER310 fillers. High ductility supports forming; annealing may be needed post-weld for critical uses.

Why Choose Gangsteel for SUS310S Cold Rolled Coils and Sheets?

• Precision cold rolling with advanced mills
• Strict JIS G4305 compliance and traceability
• Diverse finishes/stock for fast delivery
• Competitive pricing, flexible MOQ
• Export to 60+ countries with seaworthy packaging
• Technical support: high-temp/oxidation advice, specs
• ISO 9001 certified; third-party inspections (SGS/BV/TUV)

Quality Assurance and Certifications

Batch testing: chemical, mechanical, surface, dimensional. MTRs with heat traceability. Audits welcomed.

Packaging, Shipping, and Logistics

Coils eye-to-sky/wall on pallets, waterproof/edge-protected. Sheets skidded. Container/bulk with tracking/insurance.

Conclusion: Partner with Gangsteel for Extreme High-Temp SUS310S Solutions

SUS310S Cold Rolled Stainless Steel Coil & Sheetfrom Gangsteel, produced to JIS G4305, delivers unmatched oxidation resistance, thermal stability, and reliability for the most demanding high-temperature applications. As a dedicated manufacturer and exporter, we ensure consistent quality and dedicated service worldwide.

Contact Gangsteel today for competitive quotes, samples, technical data sheets, or custom SUS310S cold rolled stainless steel coils, sheets, and strips. Trust us for premium high-alloy, heat-resisting stainless solutions.