Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of ASTM A240 316L Stainless Steel Coil Supplier | UNS S31603 SS Coil in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
UNS S31603 / EN 1.4404 Marine Grade Stainless Steel Coil for Chemical, Marine, Food Processing, Pharmaceutical and Industrial Fabrication
Xi'an Dongmeng Group Co., Ltd. supplies 316L stainless steel coil in hot rolled and cold rolled conditions, including 2B, BA, No.1, No.4, HL, brushed and mirror finishes. As a low-carbon molybdenum-bearing austenitic stainless steel, 316L offers excellent corrosion resistance, strong weldability and reliable performance in chloride-containing, marine and chemical environments.
We provide custom coil thickness, width, coil weight, slitting, cut-to-length processing, PVC film protection, export seaworthy packing and Mill Test Certificate according to project requirements.
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What Is 316L Stainless Steel Coil?
316L stainless steel coil is a low-carbon version of 316 stainless steel. It contains chromium, nickel and molybdenum, giving it better resistance to pitting and crevice corrosion than 304 stainless steel, especially in chloride and marine environments.
The lower carbon content helps reduce carbide precipitation during welding, making 316L stainless steel coil a preferred material for welded tanks, pressure vessels, heat exchangers, food processing equipment, pharmaceutical equipment and chemical processing systems.
Dongmeng supplies 316L stainless steel coil with stable chemical composition, accurate thickness tolerance, clean surface finish and export-ready packaging for global B2B buyers, distributors, fabricators and project contractors.
316L Stainless Steel Coil Specifications
| Product | Thickness | Width | Coil Weight | Coil ID | Finish |
| Cold Rolled 316L Coil | 0.3–3.0 mm | 500–1500 mm | 1–10 MT | 508 / 610 mm | 2B, BA, No.4, HL, Mirror |
| Hot Rolled 316L Coil | 3.0–6.0 mm | 1000–2000 mm | 3–10 MT | 610 mm | No.1, Pickled |
| Slit 316L Coil | Custom | 10–1500 mm | Custom | 508 / 610 mm | 2B, BA, No.4, HL |
| PVC Protected Coil | 0.3–3.0 mm | 500–1500 mm | Custom | 508 / 610 mm | 2B, BA, Brushed, Mirror |
Chemical Composition of 316L Stainless Steel Coil
| Element | ASTM A240 316L Requirement |
| Carbon, C | ≤ 0.030% |
| Chromium, Cr | 16.00–18.00% |
| Nickel, Ni | 10.00–14.00% |
| Molybdenum, Mo | 2.00–3.00% |
| Manganese, Mn | ≤ 2.00% |
| Silicon, Si | ≤ 0.75–1.00% |
| Phosphorus, P | ≤ 0.045% |
| Sulfur, S | ≤ 0.030% |
| Nitrogen, N | ≤ 0.10% |
| Iron, Fe | Balance |
Mechanical Properties
| Property | Typical Requirement |
| Tensile Strength | ≥ 485 MPa |
| Yield Strength 0.2% | ≥ 170 MPa |
| Elongation | ≥ 40% |
| Hardness | ≤ 217 HB / ≤ 95 HRB |
| Condition | Annealed flat rolled product |
Physical Properties
| Property | Typical Value |
| Density | 7.98 g/cm³ |
| Modulus of Elasticity | 193 GPa |
| Thermal Conductivity | Approx. 16.2 W/m·K |
| Specific Heat | Approx. 500 J/kg·K |
| Electrical Resistivity | Approx. 0.74 μΩ·m |
| Magnetic Property | Non-magnetic in annealed condition; may become slightly magnetic after cold working |
Available Surface Finishes
| Finish | Description | Common Applications |
| 2B | Smooth, matte cold rolled finish | Food equipment, tanks, general fabrication |
| BA | Bright annealed reflective surface | Kitchenware, decorative panels, appliance parts |
| No.1 | Hot rolled, annealed and pickled surface | Industrial tanks, pressure vessels, chemical equipment |
| No.4 | Brushed surface with uniform grain | Elevator panels, decoration, kitchen equipment |
| HL | Hairline brushed finish | Architectural panels, interior decoration |
| Mirror / 8K | Highly reflective polished surface | Decorative panels, luxury interior projects |
| PVC Film | Protective film applied on surface | Surface-sensitive fabrication and export shipping |
Why Choose 316L Stainless Steel Coil?
Excellent Corrosion Resistance
316L stainless steel coil performs better than 304 stainless steel in chloride-containing environments, seawater atmospheres and many chemical processing conditions.
Better Weldability
The low carbon content reduces the risk of chromium carbide precipitation during welding, making 316L suitable for welded tanks, pipe fittings, vessels and fabricated components.
Suitable for Hygienic Applications
With a clean 2B or BA surface, 316L stainless steel coil is widely used in food processing, beverage, pharmaceutical and medical equipment manufacturing.
Good Formability
316L coil can be cut, bent, roll formed, deep drawn, stamped and fabricated into different components while maintaining good toughness and surface quality.
Custom Processing Available
Dongmeng provides coil slitting, cut-to-length, surface polishing, PVC film protection, edge trimming and export packaging according to customer drawings or purchase specifications.
316L Stainless Steel Coil Applications
| Industry | Typical Uses |
| Marine Industry | Boat fittings, marine panels, seawater equipment, coastal structures |
| Chemical Processing | Chemical tanks, reactors, pipelines, heat exchanger parts |
| Food & Beverage | Food processing equipment, kitchen equipment, brewing tanks |
| Pharmaceutical | Cleanroom equipment, medical trays, sanitary containers |
| Heat Exchanger | Heat exchanger plates, condenser parts, evaporator components |
| Architecture | Wall panels, decorative panels, elevator panels, cladding |
| Oil & Gas | Corrosion-resistant equipment, offshore components, processing units |
| Industrial Fabrication | Pressure vessels, storage tanks, formed components, welded parts |
316L Stainless Steel Coil vs 304 Stainless Steel Coil
| Item | 316L Stainless Steel Coil | 304 Stainless Steel Coil |
| Molybdenum | Contains 2.0–3.0% Mo | Usually no Mo |
| Corrosion Resistance | Better in chloride and marine environments | Good general corrosion resistance |
| Welding Performance | Excellent due to low carbon | Good, but less resistant in severe welded corrosive environments |
| Cost | Higher | Lower |
| Best For | Marine, chemical, food, pharmaceutical, chloride environments | General fabrication, decoration, appliances |
Choose 316L if your project involves saltwater, coastal climate, chemical exposure, welded tanks, food-grade equipment or higher corrosion resistance requirements.
Production and Processing Capability
Dongmeng can supply 316L stainless steel coil in standard mill size or customized processing condition.
Available processing services include:
Coil slitting to required width
Cut-to-length sheet processing
Surface polishing: No.4, HL, mirror
PVC film protection
Edge trimming and deburring
Paper interleaving for surface protection
Custom coil weight for easy unloading and production use
Export seaworthy packing for container shipment
Inspection and Quality Assurance
Each batch of 316L stainless steel coil can be inspected before shipment according to order requirements.
| Inspection Item | Details |
| Chemical Analysis | Heat number, chemical composition, PMI test |
| Mechanical Test | Tensile strength, yield strength, elongation, hardness |
| Dimension Inspection | Thickness, width, coil ID, coil weight |
| Surface Inspection | Scratches, dents, oil stains, color difference, edge quality |
| Flatness / Camber | Checked according to purchase requirements |
| Certificate | MTC 3.1, EN 10204, SGS / BV / TÜV inspection available |
Packaging and Shipping
316L stainless steel coils are packed for long-distance sea transportation.
Standard export packing:
Waterproof paper wrapping
Plastic film protection
Inner and outer metal protection rings
Steel strip fastening
Wooden pallet or wooden case
Coil eye vertical or eye horizontal packing
Shipping marks according to customer requirements
Container loading support with photos before shipment
This packing method helps reduce moisture, impact, edge damage and surface scratches during international transportation.
Why Buy 316L Stainless Steel Coil from Dongmeng?
Xi'an Dongmeng Group Co., Ltd. supplies stainless steel coil, sheet, plate, pipe, strip and other metal products for global industrial buyers. We support custom dimensions, strict inspection, stable export packing and professional documentation for B2B procurement.
Our advantages:
ASTM A240 / ASME SA240 / EN standard supply
316L, 304, 321, 310S, 2205, 2507 and other stainless grades available
2B, BA, No.1, No.4, HL and mirror finish options
Custom slitting and cut-to-length service
MTC 3.1 and third-party inspection available
Export seaworthy packing
Fast quotation and professional technical support
Global delivery for distributors, fabricators, contractors and OEM buyers
FAQ
1. What is 316L stainless steel coil used for?
316L stainless steel coil is used for marine equipment, chemical tanks, heat exchangers, food processing equipment, pharmaceutical equipment, pressure vessels, architectural panels and industrial fabrication.
2. What is the difference between 316 and 316L stainless steel coil?
316L has lower carbon content than 316. This improves weldability and helps reduce the risk of intergranular corrosion after welding.
3. Is 316L stainless steel coil better than 304?
316L offers better resistance to chloride pitting and marine corrosion because it contains molybdenum. 304 is more economical for general applications, while 316L is preferred for marine, chemical and food-grade environments.
4. What surface finishes can you supply?
We can supply 2B, BA, No.1, No.4, HL, brushed, mirror and PVC-protected surfaces.
5. Can you provide custom slitting?
Yes. We can slit 316L stainless steel coil into customized widths according to customer requirements.
6. Can you provide MTC 3.1?
Yes. Mill Test Certificate 3.1 can be supplied with heat number, chemical composition, mechanical properties and production information.
7. What is the MOQ?
MOQ depends on thickness, width and surface finish. Standard sizes usually have lower MOQ, while special sizes or finishes may require customized production.
8. How do you pack stainless steel coils for export?
Coils are packed with waterproof paper, plastic film, metal protection rings, steel straps and wooden pallets or wooden cases for seaworthy export shipping.
9. Can you arrange third-party inspection?
Yes. SGS, BV, TÜV, Intertek or other third-party inspection can be arranged before shipment.
10. How can I get a quotation?
Please send your required grade, thickness, width, surface finish, quantity, destination port and certificate requirements. Our sales team will provide a quotation and delivery solution.
Contact Us
Xi'an Dongmeng Group Co., Ltd.
Phone / WhatsApp / WeChat: +86 15769214734
Email: office@dongmjd.com
Send your inquiry today to get the latest 316L stainless steel coil price, datasheet, MTC sample and export packing solution.
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