JIS G4305 SUS 410S Cold Rolled Stainless Steel Coil Supplier

SUS410S Cold Rolled Stainless Steel Coil & Sheet | JIS G4305 410S Stainless Steel Strip Manufacturer & Exporter – Gangsteel

Gangsteel is a premier manufacturer and global exporter of premium JIS G4305 SUS410S cold rolled stainless steel coils, sheets, and strips. As a low-carbon variant of the martensitic grade SUS410 (Grade 410S or UNS S41008), SUS410S is specifically designed for improved weldability, formability, and resistance to cracking while maintaining good corrosion resistance, moderate strength, and excellent machinability in the annealed condition. With maximum carbon limited to 0.08% (typically produced at ≤0.03–0.05%), it minimizes hardening potential and eliminates the need for pre- or post-weld heat treatment in many applications.

Our precision cold rolling facilities produce SUS410S with high-quality surface finishes (2B, BA, No.4, HL), 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 410S, EN 1.4000 (X6Cr13), and GB 022Cr13 or similar, Gangsteel's SUS410S products serve industries worldwide including petrochemical processing, refinery equipment, heat exchangers, automotive exhaust components, kitchen appliances, and general fabrication where weldability and moderate corrosion resistance are required without full hardenability.

This comprehensive product introduction details every aspect of our JIS G4305 SUS410S cold rolled stainless steel — from composition and properties (in tables) to manufacturing, applications, advantages, and why Gangsteel is your trusted partner for reliable, weld-friendly martensitic supply.

Introduction to SUS410S Stainless Steel

SUS410S is a ferritic-martensitic stainless steel with significantly reduced carbon content compared to standard SUS410, resulting in lower hardenability, improved ductility, and superior weldability. It offers good corrosion resistance in mild environments (fresh water, steam, mild acids, and atmospheres with low chlorides), moderate oxidation resistance up to 650–700°C (1200–1300°F), and excellent machinability in the annealed condition. Unlike fully hardenable SUS410, SUS410S remains relatively soft after welding or heat exposure, avoiding brittleness and cracking risks.

Magnetic in all conditions, SUS410S is non-heat-treatable to high hardness levels but provides a cost-effective alternative to austenitic grades for applications prioritizing weld performance and moderate corrosion protection over extreme strength.

Gangsteel specializes in cold rolled SUS410S, delivering material optimized for forming, welding, stamping, and machining in welded structures and moderate-corrosion service.

Chemical Composition of JIS G4305 SUS410S

Chemical Composition Table

Gangsteel's production uses very low carbon and tight controls for maximum weld performance and ductility. Full chemical analysis and EN 10204 3.1 certificates are standard.

Mechanical Properties

In annealed condition per JIS G4305:

Mechanical Properties Table (Annealed)

SUS410S remains soft and ductile even after welding; limited hardening possible compared to SUS410.

Physical Properties

Physical Properties Table

These properties provide excellent thermal conductivity and lower thermal expansion.

Equivalent Materials Comparison

Equivalent Materials Comparison Table

SUS410S offers better weldability and ductility than standard SUS410.

Manufacturing Process: Cold Rolled at Gangsteel

Gangsteel's process: hot rolling to intermediate thickness, annealing/pickling, multi-pass cold reduction in precision mills, final annealing/skin pass for soft annealed condition, 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). Protective films and custom slitting available. Material supplied annealed for optimal weld/formability.

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 SUS410S Cold Rolled Products

SUS410S excels where weldability and moderate corrosion resistance are prioritized over high hardness:

Petrochemical and Refinery

• Tower internals, trays, baffles
• Welded piping and fittings

Heat Exchangers and Condensers

• Tube sheets, baffles
• Moderate-temperature heat transfer

Automotive and Exhaust Systems

• Exhaust silencers, catalytic converter components
• Welded trim and brackets

General Fabrication and Appliances

• Kitchen equipment frames, appliance parts
• Machine guards, structural components

Its low hardenability suits welded assemblies without post-weld heat treatment.

Advantages of Choosing SUS410S Stainless Steel

• Excellent weldability without pre/post-weld heat treatment in most cases
• Good corrosion resistance in mild environments (steam, fresh water, mild acids)
• Superior machinability and formability in annealed condition
• Cost-effective martensitic alternative to austenitics for welded parts
• Moderate oxidation resistance up to 650–700°C
• Magnetic; good toughness after welding
• Lower risk of cracking vs. standard SUS410

Corrosion and Oxidation Resistance

Moderate resistance to atmospheric corrosion, fresh water, steam, and mild acids; lower in chlorides/acids than austenitics. Oxidation resistance up to ~700°C continuous; good in hot dry atmospheres.

Weldability and Fabrication

Outstanding weldability for a martensitic grade; low carbon eliminates hardening/cracking risk in HAZ. Use matching fillers (ER410) or austenitic (ER309). High ductility supports cold forming; annealing post-weld usually unnecessary.

Why Choose Gangsteel for SUS410S 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: welding/formability 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 Weld-Friendly SUS410S Solutions

SUS410S Cold Rolled Stainless Steel Coil & Sheetfrom Gangsteel, produced to JIS G4305, delivers superior weldability, moderate corrosion resistance, and excellent fabricability for welded and moderate-corrosion 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 SUS410S cold rolled stainless steel coils, sheets, and strips. Trust us for premium low-carbon martensitic stainless solutions.