Description
304 316 410 Stainless Steel Coil 2B BA 8K Finish Factory Direct Supplier
Factory-Direct Stainless Coil Supply — every coil rolls out of our Jinan mill with original mill test certificates and in-house lab verification before container sealing.
Technical Specifications
| Parameter | Value |
|---|---|
| Designation | 304/316/410 Stainless Steel Coil |
| Product Type | Steel Coil |
| Steel Grade | 201, 301, 304, 310S, 316, 316L, 321, 405, 409L, 410, 410L, 420, 430, 430A, 309S, 2205, 2507, 2520, 904L |
| Standard | ASTM, JIS, GB, AISI, DIN, BS, EN |
| Section Shape | Coil / Strip |
| 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.1, NO.4, Embossed, Colored |
| Technique | Cold Rolled / Hot Rolled |
| Packing | Waterproof paper + steel strapping + pallet; BA and 8K with PVC film |
| Origin | Shandong, China |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Construction & Architecture | Elevator interior panels, building facade cladding, kitchen equipment housings |
| Chemical & Petroleum | Chemical storage tanks, petroleum processing vessels, pressure vessel shells |
| Food & Medical | Food processing conveyors, medical device housings, commercial tableware |
| Industrial Equipment | Conveyor system frames, automation machine guards, structural support brackets |
Why Surface Finish Selection Determines Project Acceptance
A 304 coil with a BA finish shipped for an elevator project will fail inspection if the spec calls for 8K mirror — and re-grinding on site is not an option.
I have seen entire shipments of decorative stainless coil rejected at the port because the surface finish did not match the architectural drawing. The buyer specified 8K mirror for a high-rise lobby, but the supplier shipped 2B cold-rolled material. The coil itself was chemically correct — 304 stainless steel, proper nickel and chromium content — but the visual requirement was missed. Demurrage charges piled up while the replacement shipment was arranged. Surface finish is not cosmetic; it is a contractual specification that must be verified before the coil leaves the mill. [NEED_CITE: stainless steel surface finish grades 2B BA 8K comparison]
Matching Coil Finish to Engineering and Decorative Requirements
When a 316L cold-rolled coil at 0.8 mm thickness is ordered for a coastal building facade, the 2B finish provides adequate corrosion resistance but lacks the reflectivity that architectural drawings demand. Switching to an 8K mirror finish requires additional polishing passes at the mill, and the PVC film protection becomes mandatory to prevent surface scratching during ocean transit. For industrial applications such as chemical tank fabrication, a NO.1 hot-rolled finish on a 10 mm 316 coil is sufficient — the priority is weldability and corrosion resistance, not visual appearance. As a 304 316 410 stainless steel coil supplier, we produce the full range from NO.1 through 8K mirror, plus embossed and colored options, all from the same production facility.
Structural and Corrosion Compliance Across Global Standards
Stainless steel coil selection for pressure vessels and chemical storage must comply with ASTM or EN material specifications, and the mill test certificate must document the exact chemical composition — particularly molybdenum content for 316L in chloride environments. European projects require CE certification aligned with EN standards, while North American fabricators expect ASTM A240 compliance. [NEED_CITE: stainless steel coil ASTM A240 vs EN 10088 material requirements] Thickness tolerance becomes critical when the coil will be slit to narrow widths for conveyor components — a 0.15 mm cold-rolled 301 strip demands tighter gauge control than a 20 mm hot-rolled 310S plate for furnace parts. Third-party inspection by SGS or BV confirms both chemistry and dimensional accuracy before shipment.
Steel Grade Selection: Austenitic, Ferritic, and Duplex Performance
The 19 available grades span three metallurgical families, each serving distinct engineering needs. Austenitic grades including 304, 316L, and 321 offer superior corrosion resistance and formability — 304 handles general atmospheric and mild chemical exposure, while 316L adds molybdenum for chloride resistance in marine and pharmaceutical environments. Ferritic grades such as 410, 410L, and 430 provide magnetic properties and lower nickel cost, suitable for automotive exhaust components and decorative trim where extreme corrosion resistance is not required. Duplex grades 2205 and 2507 combine austenitic and ferritic structures for high chloride environments like offshore platforms and desalination equipment, offering superior stress corrosion cracking resistance. Hot-rolled coils from 3 mm to 120 mm thickness serve heavy structural and pressure vessel fabrication, while cold-rolled material from 0.15 mm to 3 mm feeds precision stamping and deep-drawing operations.
Hidden Costs of Incorrect Grade or Certification
Shipping a 410 ferritic coil to a project that specified 316L austenitic material will fail chemical composition verification at the port — the molybdenum content is absent, and the coil cannot be used in chloride environments. Missing mill test certificates delay customs clearance in the EU, where CE documentation is mandatory for structural steel products. [NEED_CITE: EN 10219 cold-formed hollow section requirements] Negative tolerance abuse on thickness reduces actual load-bearing capacity, and the fabricator discovers the shortfall only after cutting begins — re-ordering delays the project timeline and increases material cost.
Procurement Confidence from Mill to Project Site
Every 304 316 410 stainless steel coil we supply carries an original mill test certificate generated by our in-house physical and chemical laboratory — not a forwarded document from a trading company. Our 2,800+ specification range means you source cold-rolled and hot-rolled coils, multiple surface finishes, and precision slitting from a single factory, eliminating coordination across fragmented suppliers. ISO 9001:2015 certification, CE marking for EU compliance, and third-party verification by SGS and BV ensure that documentation survives customs inspection. Custom non-standard widths and lengths are produced to your drawing, and professional container loading plans optimize freight cost for heavy coil shipments to 50+ countries.
Documentation & Compliance
- Mill test certificate documenting 304/316L/410 chemical composition including nickel, chromium, and molybdenum content per ASTM and EN standards
- CE certificate confirming compliance with EN 10210 and EN 10219 for European structural and pressure applications
- ISO 9001:2015 quality management certificate covering production process and inspection procedures
- SGS or BV third-party inspection report verifying surface finish, thickness tolerance, and packaging condition before shipment
- Material traceability by heat number linking each coil to original melt chemistry and rolling records
- Customs documentation package including packing list, bill of lading, and certificate of origin for import clearance
Packaging, Loading & Delivery
- Cold-rolled 304 and 316L coils wrapped in waterproof paper with steel strapping on pallets, preventing edge damage during ocean transit
- BA and 8K mirror finish coils additionally protected with PVC film to preserve surface quality for architectural applications
- Hot-rolled 310S and 321 coils at 10–120 mm thickness bundled with edge protectors to maintain dimensional accuracy
- Precision-slit narrow-width strips from 1000 mm / 1219 mm / 1500 mm masters packaged with interleaving paper to prevent surface scratching
- Container loading plans optimized for coil weight distribution, maximizing payload for FOB, CIF, or DDP shipment
- Heat number and steel grade clearly marked on each coil for site identification and traceability verification
Requesting Quotation with Full Technical Documentation
Submit your specification including steel grade, thickness, width, surface finish, and destination port to receive a detailed quotation with unit price, delivery timeline, and applicable certification options. We provide original mill test certificates and third-party inspection reports for quality confirmation before production begins. Custom slitting and non-standard dimensions are quoted based on your drawing requirements, with typical production lead times confirmed at order placement.
Frequently Asked Questions
Q: What is the difference between 304, 316L, and 410 stainless steel coil for my application?
A: 304 provides general corrosion resistance for architectural and food industry use. 316L adds molybdenum for chloride resistance in marine and chemical environments. 410 is a martensitic ferritic grade offering magnetic properties and lower cost for automotive and decorative applications where extreme corrosion resistance is not required.
Q: Can I order cold-rolled and hot-rolled stainless coil from the same supplier?
A: Yes. We produce cold-rolled coils from 0.15 mm to 3 mm thickness and hot-rolled coils from 3 mm to 120 mm thickness, covering the full range of austenitic, ferritic, and duplex grades from a single production facility.
Q: What surface finishes are available for architectural and decorative applications?
A: We supply 2B, 2D, BA, 8K mirror, HL (hairline), NO.1, NO.4, embossed, and colored finishes. BA and 8K finishes include PVC film protection to preserve surface quality during shipping.
Q: Do you provide CE certification for European projects?
A: Yes. Our stainless steel coils carry CE certification aligned with EN standards for EU market compliance, alongside ISO 9001:2015 and third-party inspection by SGS or BV.
Q: Can you slit master coils to custom narrow widths?
A: Yes. We slit standard 1000 mm, 1219 mm, and 1500 mm master coils to your required narrow widths, with precision slitting capability for cold-rolled material down to 0.15 mm thickness.
Get Your Stainless Steel Coil Quotation with Mill Test Certificate
Send your specification including grade, thickness, width, surface finish, and destination to receive pricing and certification details within 12 hours.
Company: Shandong Xin Jiyuan Special Steel Tube Co., Ltd
Website: www.sdxjysteel.com
Tel: +86 531 8573 6315
Mobile/WhatsApp/WeChat: +86 188 5315 7756
Email: admin@sdxjysteel.com
Address: No.11889, Jingshi West Road, Lulian Group, Jinan City, Shandong Province, China
