Description
Factory-Direct Cold Rolled 304L 316L Stainless Steel Coil — Every coil ships with in-house lab MTC and third-party SGS/BV verification, eliminating middleman markups and traceability gaps.
Technical Specifications
| Parameter | Value |
|---|---|
| Designation | 304L / 316L Cold Rolled Stainless Steel Coil |
| Product Type | Stainless Steel Coil / Sheet |
| Steel Grade | 201, 301, 304, 304L, 309S, 310S, 316, 316L, 321, 405, 409L, 410, 410L, 420, 430, 430A, 904L, 2205, 2507, 2520 |
| Standard | ASTM, JIS, GB, AISI, DIN, BS, EN |
| Technique | Cold Rolled / Hot Rolled |
| Thickness (Cold Rolled) | 0.15–3 mm |
| Thickness (Hot Rolled) | 3–120 mm |
| Width | 1000 mm / 1219 mm / 1500 mm (slit to narrow width available) |
| Length | 2000 mm / 2438 mm / 2440 mm / 3048 mm / Customized |
| Surface Treatment | 2B, 2D, BA, 8K, HL, NO.4, Embossed, Colored, Short/Long Wire Drawing |
| Packing | Waterproof paper + steel strapping + pallet; BA & 8K with PVC film |
| Application | Construction & architectural decoration, kitchen utensils, medical equipment, food industry, chemical equipment, petroleum industry, storage tanks, elevator interiors, household appliances |
| Origin | Shandong, China |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Construction & Architectural Decoration | Elevator interior panels, façade cladding, column covers, ceiling trim |
| Food Industry & Medical Equipment | Hygiene-critical work surfaces, surgical instrument housings, food processing tanks |
| Chemical & Petroleum | Corrosion-resistant storage tanks, pipeline insulation jackets, reactor vessel liners |
| Household Appliances & Kitchen | Range hoods, sink bowls, dishwasher inner liners, commercial kitchen countertops |
Thickness Tolerance Decides Whether Your Laser Line Runs or Shuts Down
A 0.15 mm negative deviation on a 304L cold rolled coil can jam an entire decoiler and scrap a container before the first panel is cut.
I watched a Dubai decorator’s laser-cutting line choke on a batch of 304L coils — the surface finish looked acceptable, but the thickness ran consistently negative by nearly 0.15 mm. The entire container was rejected. That kind of tolerance failure does not show up in a visual inspection; it only surfaces when material hits the press brake or the laser head. [NEED_CITE: cold rolled stainless steel thickness tolerance standards per ASTM A480]
Global buyers sourcing Cold Rolled 304L 316L Stainless Steel Coil from fragmented suppliers often discover tolerance inconsistencies only after the material reaches the fabrication floor. Inconsistent gauge across coil length, mixed heat numbers within one shipment, and missing mill test certificates turn a routine procurement into a customs hold or a project delay.
Matching Surface Finish to Corrosion Environment and Fabrication Method
Choosing between 2B, BA, 8K, and HL finishes on a Cold Rolled 304L 316L Stainless Steel Coil is not a cosmetic decision — it determines weldability, post-fabrication cleaning effort, and long-term corrosion behavior in chloride or acidic environments. A food processing plant running caustic cleaning cycles needs the uniform passive layer of a 2B finish; an elevator manufacturer specifying mirror-look column covers requires 8K with PVC film protection to survive ocean freight without micro-scratching. Our in-house physical and chemical laboratory verifies each coil’s surface chemistry and passive layer integrity before release, so the finish you specify is the finish that arrives on site.
Engineering Compliance and Certification for Cross-Border Delivery
Cold-rolled stainless coils destined for EU construction projects must align with EN 1088-3 surface finish and dimensional requirements, while North American buyers reference ASTM A240 for pressure vessel and architectural applications. [NEED_CITE: ASTM A240 standard specification for chromium and chromium-nickel stainless steel plate, sheet, and strip] CE-marked documentation and SGS or BV third-party inspection reports are not optional add-ons — they determine whether the shipment clears customs or sits at the port for weeks. Our facility holds ISO 9001:2015 certification, Lloyd’s Register EU CE compliance, Singapore FPC, and SGS/BV verification, ensuring that every Cold Rolled 304L 316L Stainless Steel Coil meets the certification framework your importer and end-client require.
Understanding 304L vs 316L vs 904L: Carbon, Chromium, and Molybdenum
The “L” in 304L and 316L designates low carbon (maximum 0.03%), which reduces sensitization risk during welding — critical when fabrication involves TIG or laser welding on thin-gauge cold rolled sheets. 316L adds molybdenum (2–3%), providing superior resistance to pitting corrosion in chloride environments such as coastal construction or chemical processing. For aggressive sulfuric or phosphoric acid service, 904L offers elevated copper and molybdenum content. Cold rolling itself increases tensile strength through work hardening while maintaining the tight thickness tolerance that hot-rolled material cannot achieve at sub-3 mm gauges. [NEED_CITE: metallurgical differences between 304L and 316L stainless steel in corrosive environments]
The Hidden Cost of Unverified Coil Specifications
Ordering Cold Rolled 304L 316L Stainless Steel Coil based on price alone — without verified mill test certificates, without third-party inspection, without confirmed surface finish — exposes projects to material rejection at fabrication, customs detention for missing CE documentation, and structural liability if the delivered grade does not match the specified corrosion resistance. A shipment of 430 coils substituted for 304L in a coastal façade project will show rust staining within months, triggering warranty claims and replacement costs that dwarf the original purchase price difference. [NEED_CITE: consequences of incorrect stainless steel grade selection in marine environments]
Procurement Confidence Built on Verified Capability
Every Cold Rolled 304L 316L Stainless Steel Coil leaves our facility after passing incoming, in-process, and final inspection in our own physical and chemical laboratory — not a third-party lab we outsource to. We maintain 2,800+ specifications across cold rolled and hot rolled ranges, meaning your non-standard width or custom slit requirement does not require sourcing from a second supplier. Our 41 patented technologies include proprietary sharp-corner rectangular tube processes, and our dedicated production lines serve state-owned enterprises, central enterprises, and listed companies across 50+ countries. Factory-direct pricing eliminates trading company margins, while professional loading plans and container optimization ensure that BA and 8K mirror coils arrive without surface damage.
Documentation & Compliance
- Mill Test Certificate documenting 304L/316L chemical composition (C, Cr, Ni, Mo content) and cold rolled mechanical properties per ASTM A240 or EN 10088-2
- CE certificate confirming compliance with EN 10088 series for stainless steel flat products destined for EU construction and architectural markets
- ISO 9001:2015 quality management certificate covering the full cold rolling, annealing, and surface treatment process chain
- SGS or BV third-party inspection report verifying thickness tolerance, surface finish grade, and dimensional accuracy before shipment
- Full material traceability by heat number linking each Cold Rolled 304L 316L Stainless Steel Coil to its original melt chemistry and rolling pass records
- Customs documentation package including packing list, Bill of Lading, and Certificate of Origin aligned with destination port requirements
Packaging, Loading & Delivery
- Cold rolled 304L/316L coils wrapped in waterproof kraft paper with inner plastic film, secured by steel strapping on fumigated wooden pallets to prevent moisture ingress during ocean transit
- BA and 8K mirror finish coils additionally protected with peelable PVC film to preserve surface quality against handling marks and micro-scratching
- Custom slit-width coils edge-protected with plastic caps and cardboard sleeves to maintain edge integrity for subsequent decoiling and leveling operations
- Container loading optimized by our logistics team based on coil weight, width, and destination port crane capacity — maximizing payload per 20ft or 40ft container
- Each coil labeled with heat number, steel grade (304L/316L), thickness, width, and surface finish code for immediate identification at the fabrication site
- Shipping terms available as FOB, CIF, or DDP with real-time tracking and door-to-door coordination to 50+ countries
Start Your Procurement with Verified Specifications
Submit your required steel grade, thickness, width, surface finish, and destination port — receive a detailed quotation including unit price, production timeline, applicable certifications, and mill test certificate confirmation within 12 hours. For non-standard slit widths or custom length requirements, our engineering team provides a feasibility assessment and lead time estimate before you commit.
Request a Quotation with Mill Test Certificate
Email your specifications to admin@sdxjysteel.com or contact us via WhatsApp at +86 188 5315 7756. Our international team responds within 12 hours with pricing, certification availability, and delivery options for your Cold Rolled 304L 316L Stainless Steel Coil inquiry.
