JIS G4305 SUS 316L Cold Rolled Stainless Steel Coil Supplier

SUS316L Cold Rolled Stainless Steel Coil & Sheet | JIS G4305 316L Stainless Steel Strip Manufacturer & Exporter – Gangsteel

Gangsteel is a premier manufacturer and global exporter of premium JIS G4305 SUS316L cold rolled stainless steel coils, sheets, and strips. As the low-carbon variant of SUS316 (Grade 316L or UNS S31603), SUS316L combines exceptional pitting and crevice corrosion resistance in chloride environments with superior weldability due to its extra-low carbon content (≤0.030%). The addition of 2-3% molybdenum and higher nickel range enhances performance in aggressive conditions while maintaining the excellent formability, hygiene, and mechanical properties of austenitic stainless steels.

Our advanced cold rolling facilities produce SUS316L with superior 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 316L, EN 1.4404 / 1.4432 (X2CrNiMo17-12-2), and GB 022Cr17Ni12Mo2, Gangsteel's SUS316L products serve critical industries worldwide including chemical processing, marine applications, pharmaceuticals, food equipment, heat exchangers, and welded structures exposed to corrosive media.

This comprehensive product introduction details every aspect of our JIS G4305 SUS316L cold rolled stainless steel — from composition and properties (in tables) to manufacturing, applications, advantages, and why Gangsteel is your trusted partner for reliable, high-performance supply.

Introduction to SUS316L Stainless Steel

SUS316L is an austenitic 17/12/2.5 chromium-nickel-molybdenum stainless steel with significantly reduced carbon compared to SUS316, minimizing carbide precipitation during welding or high-temperature exposure and preserving full corrosion resistance in the heat-affected zone. It offers superior resistance to pitting, crevice corrosion, and general corrosion in chloride-rich, acidic, or marine environments while providing excellent weldability without post-weld annealing in most cases.

Non-magnetic in the annealed state, SUS316L maintains good toughness at cryogenic temperatures and oxidation resistance up to ~870°C intermittent. Gangsteel specializes in cold rolled SUS316L, optimizing it for deep drawing, stamping, bending, polishing, and high-integrity welding in demanding corrosive service.

Chemical Composition of JIS G4305 SUS316L

Chemical Composition Table

Gangsteel's production uses tight controls (low C, optimal Mo/Ni) for maximum weld integrity and corrosion performance. Full chemical analysis and EN 10204 3.1 certificates are standard.

Mechanical Properties

In annealed condition per JIS G4305:

Mechanical Properties Table (Annealed)

SUS316L exhibits moderate work hardening, similar to SUS316, suitable for general fabrication.

Physical Properties

Physical Properties Table

These properties ensure stability in thermal cycling and corrosive environments.

Equivalent Materials Comparison

Equivalent Materials Comparison Table

SUS316L offers better weld-zone corrosion resistance than SUS316 while maintaining similar pitting performance.

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 gauge and surface inspection ensure defect-free material.

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 SUS316L Cold Rolled Products

SUS316L excels in welded, highly corrosive environments:

Chemical and Petrochemical

• Welded tanks, piping, heat exchangers, valves
• Acid/chloride processing equipment

Marine and Offshore

• Desalination components, boat fittings, coastal structures
• Seawater systems

Food, Beverage, and Pharmaceuticals

• Sterile vessels, dairy lines, pharmaceutical processing
• Hygienic welded equipment

Industrial and Architectural

• Heat exchangers, condensers, marine cladding
• Welded railings in corrosive atmospheres

Its low-carbon weldability suits heavy fabrication.

Advantages of Choosing SUS316L Stainless Steel

• Superior resistance to pitting/crevice corrosion (PREN ~24–26)
• Excellent intergranular corrosion resistance post-welding
• Better weld performance than SUS316
• Good formability, hygiene, and high-temperature strength
• Cost-effective for chloride-exposed welded applications
• Non-magnetic annealed; easy to clean/polish
• Wide acceptance in marine/chemical/pharma sectors

Compared to SUS316, SUS316L trades minor strength for enhanced weld-zone durability.

Corrosion and Oxidation Resistance

Enhanced passive layer from Mo; resists pitting in chlorides, acids, and marine atmospheres. Low C prevents sensitization; excellent welded corrosion resistance. Oxidation resistance up to ~870°C intermittent.

Weldability and Fabrication

Outstanding weldability with TIG/MIG/resistance/laser; extra-low carbon eliminates sensitization. Use ER316L fillers. High ductility supports complex forming.

Why Choose Gangsteel for SUS316L Cold Rolled Coils and Sheets?

• Precision cold rolling with advanced mills
• Strict JIS G4305 compliance and traceability
• Diverse finishes/stock for quick delivery
• Competitive pricing, flexible MOQ
• Export to 60+ countries with seaworthy packaging
• Technical support: corrosion/welding 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 supported.

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 Premium SUS316L Solutions

SUS316L Cold Rolled Stainless Steel Coil & Sheetfrom Gangsteel, produced to JIS G4305, delivers unmatched weldability, chloride resistance, and reliability for critical corrosive 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 SUS316L cold rolled stainless steel coils, sheets, and strips. Trust us for superior low-carbon, molybdenum-enhanced stainless solutions.