JIS G4305 SUS 201 Cold Rolled Stainless Steel Coil Supplier

SUS201 Cold Rolled Stainless Steel Coil & Sheet | JIS G4305 201 Stainless Steel Strip Manufacturer & Exporter – Gangsteel

Gangsteel is a leading manufacturer and global exporter of high-quality JIS G4305 SUS201 cold rolled stainless steel coils, sheets, and strips. As a cost-effective austenitic grade, SUS201 (also known as Grade 201 or UNS S20100) offers an excellent balance of corrosion resistance, formability, strength, and affordability, making it a popular alternative to traditional 304 stainless steel in non-severe environments.

Our advanced cold rolling facilities produce precision SUS201 products with superior surface finishes (2B, BA, No.4, HL, Mirror), tight tolerances, and consistent mechanical properties. Compliant with JIS G4305 (Cold-rolled stainless steel plate, sheet and strip), our materials meet or exceed international equivalents like ASTM A240/A666 and EN 1.4372. Gangsteel supplies SUS201 worldwide for applications in appliances, kitchenware, architectural trim, automotive components, and general fabrication.

This detailed product introduction covers every aspect of our JIS G4305 SUS201 cold rolled stainless steel — from composition and properties to manufacturing, applications, and why Gangsteel is your trusted partner.

Introduction to SUS201 Stainless Steel

SUS201 is an austenitic chromium-nickel-manganese stainless steel developed to reduce nickel dependency while maintaining good performance characteristics. By substituting higher manganese (5.5–7.5%) for part of the nickel (3.5–5.5%), SUS201 achieves lower material costs without significantly compromising corrosion resistance or formability in mild to moderate environments.

Compared to SUS304 (with higher nickel), SUS201 provides higher work-hardening rates, better yield strength in cold-worked conditions, and comparable aesthetics after polishing. It is non-magnetic in the annealed state but becomes slightly magnetic after cold working due to strain-induced martensite.

Gangsteel specializes in cold rolled SUS201, delivering coils and sheets optimized for high-speed stamping, deep drawing, bending, and welding operations common in consumer goods and decorative industries.

Chemical Composition of JIS G4305 SUS201

JIS G4305 specifies the following chemical composition ranges for SUS201 (weight %):

Gangsteel's production maintains values at the optimal mid-to-lower ranges for enhanced weldability and formability. The higher manganese and controlled nitrogen contribute to solid-solution strengthening, while chromium provides the passive oxide layer for corrosion protection. Full chemical analysis is performed on every heat, with EN 10204 3.1 certificates available.

Mechanical Properties

In the annealed condition (per JIS G4305), SUS201 exhibits:

Cold-rolled temper conditions (e.g., 1/4H, 1/2H, 3/4H, FH) increase strength significantly:

• 1/2 Hard: Tensile ~760–900 MPa, Yield ~550–650 MPa, Elongation 15–20%
• Full Hard: Tensile ~1030–1205 MPa, Yield ~860–960 MPa, Elongation 3–5%

These properties make SUS201 ideal for applications requiring high strength after forming, such as structural reinforcements and spring-like components. Gangsteel's cold rolling process ensures uniform properties across wide coils.

Comparison of Temper Conditions

SUS201's high work-hardening rate allows tailoring mechanical properties via cold reduction, offering flexibility beyond many standard grades.

Physical Properties

Key physical characteristics include:

SUS201 has higher thermal expansion than ferritic grades but lower than some austenitics, aiding dimensional stability in temperature-varying environments.

Manufacturing Process: Cold Rolled at Gangsteel

Gangsteel produces SUS201 exclusively via cold rolling for superior surface quality and precision:

1. Hot rolling to intermediate thickness
2. Annealing and pickling
3. Multiple cold reduction passes in Sendzimir or 20-high mills
4. Final bright annealing or skin pass for 2B/BA finishes
5. Slitting, edge trimming, and oiling

Thickness range: 0.3–3.0 mm (coils), up to 3.0 mm (cut sheets). Width: 600–1524 mm. In-line gauge control (±0.02 mm) and surface inspection ensure defect-free products.

Finishes available:

• 2B: Dull, matte (standard for general use)
• BA: Bright annealed mirror-like
• No.4 / HL: Brushed/satin
• Mirror / Etched: Decorative options

Protective PVC/PE films and custom slitting are standard services.

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 widths from 10 mm

All comply with JIS G4305, with optional ASTM A240/A666, EN 10088-2, and customer specs. Tolerances per JIS or tighter upon request.

Equivalent Materials Comparison

SUS201 equivalents include:

These grades are interchangeable in most applications, with SUS201/JIS widely accepted in Asian and global markets.

Key Applications of SUS201 Cold Rolled Products

SUS201 excels in cost-sensitive, mildly corrosive environments:

Consumer and Household Appliances

• Refrigerator liners, washing machine drums, microwave panels
• Kitchen sinks, cookware, utensils

Architectural and Decorative

• Elevator interiors, handrails, wall panels, door frames
• Furniture trim, signage, shop fittings

Automotive and Transport

• Trim, moldings, exhaust components (non-high-heat)
• Railway car panels, trailer parts

Industrial and General Fabrication

• Hose clamps, conveyor belts, structural supports
• Food service equipment (indoor use)

Its combination of affordability, aesthetics, and moderate corrosion resistance makes SUS201 dominant in emerging markets and mass-production sectors.

Advantages of Choosing SUS201 Stainless Steel

• Cost-Effectiveness: 20–40% lower cost than 304 due to reduced nickel
• High Work-Hardening: Excellent for strength gain via cold forming
• Good Formability: Deep drawable, bendable, suitable for stamping
• Adequate Corrosion Resistance: Superior to carbon steel in indoor/dry conditions
• Weldability: Good with standard austenitic fillers (e.g., ER308)
• Aesthetics: Polishes to high shine for decorative uses
• Availability: Gangsteel maintains large stock for fast delivery

While not as corrosion-resistant as 304 in chloride or acidic environments, SUS201 performs reliably in non-marine, indoor applications.

Corrosion and Oxidation Resistance

SUS201 forms a stable chromium oxide passive layer, offering good resistance to atmospheric corrosion, mild acids, and organic environments. It resists scaling up to ~800°C in intermittent service but is not recommended for prolonged high-heat exposure.

In salt spray or humid conditions, performance is moderate—suitable for coated or protected uses.

Weldability and Fabrication

SUS201 welds easily using TIG, MIG, resistance, or laser methods. Low carbon minimizes sensitization risk, though post-weld annealing may be needed in critical applications. Recommended fillers: 308/308L for matching properties.

High formability supports complex shapes without cracking.

Why Choose Gangsteel for SUS201 Cold Rolled Coils and Sheets?

• State-of-the-art cold rolling mills with precision control
• Strict JIS G4305 compliance and full traceability
• Wide finish and temper options (2B, BA, tempered)
• Competitive pricing with flexible MOQ
• Global export expertise: 60+ countries, seaworthy packaging
• Technical support: Material selection, welding advice, custom specs
• ISO 9001 certified with third-party inspections (SGS, BV, TUV)

Thousands of customers rely on Gangsteel for reliable, high-volume SUS201 supply.

Quality Assurance and Certifications

Every coil undergoes chemical analysis, mechanical testing, surface inspection, and dimensional checks. Material Test Certificates include heat traceability and properties. We support customer audits and special testing.

Packaging, Shipping, and Logistics

Coils are eye-to-sky or eye-to-wall packed with wooden/steel pallets, waterproof wrapping, and edge protection. Sheets bundled with skids. We handle container, LCL, or bulk shipments with tracking and insurance.

Conclusion: Partner with Gangsteel for Superior SUS201 Solutions

SUS201 Cold Rolled Stainless Steel Coil & Sheetfrom Gangsteel, manufactured to JIS G4305, delivers outstanding value through cost savings, reliable performance, and versatile fabrication. As a dedicated manufacturer and exporter, we provide consistent quality and service to support your production needs worldwide.

Contact Gangsteel today for competitive quotes, samples, technical data, or custom SUS201 cold rolled stainless steel coils, sheets, and strips. Let us help optimize your projects with premium, economical stainless solutions.