Description
Full-Range Stainless Steel Supply — 20+ grades from 304L to 904L and duplex 2205/2507 in cold rolled and hot rolled, all with traceable mill certificates ready for EU and Middle East customs clearance.
Technical Specifications
| Parameter | Value |
|---|---|
| Designation | 304L 316L Stainless Steel Coil |
| Product Type | Steel Coil / Steel Plate |
| 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 |
| Thickness (Cold Rolled) | 0.15–3mm |
| Thickness (Hot Rolled) | 3–120mm |
| Width | 1000mm / 1219mm / 1500mm (slit to narrow width available) |
| Length | 2000mm / 2438mm / 2440mm / 3048mm (customized available) |
| Surface Treatment | NO.1, 2D, 2B, BA, 8K, NO.4, HL, Embossed, Colored |
| Technique | Cold Rolled / Hot Rolled |
| Packing | Waterproof paper + steel strapping + pallet; BA and 8K with PVC film |
| Delivery | 7–10 working days (subject to order quantity) |
| Origin | Shandong, China |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Construction & Architecture | Curtain wall framing, elevator interior panels, facade cladding, decorative trim |
| Chemical & Petroleum | Corrosion-resistant storage tanks, process piping, heat exchangers, reactor vessels |
| Food & Medical | Hygienic equipment housings, tableware blanks, surgical instrument components, storage tanks |
| Kitchen & Tableware | Sink bowls, countertop sheets, cutlery blanks, commercial kitchen surfaces |
Mixing Austenitic and Duplex Grades in One Container Creates Certification Nightmares
Ordering multiple stainless grades from separate suppliers means mismatched mill certificates, inconsistent surface finishes, and customs delays at destination.
When a project requires 304L for food-grade tanks, 316L for coastal facade panels, and 2205 duplex for chloride-exposed piping, sourcing each from a different mill produces certificates with conflicting heat numbers, varying surface finish tolerances, and grade equivalence gaps between EN, ASTM, and JIS designations. I have seen entire shipments held at Jebel Ali because the 316L certificates referenced ASTM A240 while the customs broker expected EN 10088-2 format — the material was correct, but the paperwork was not. Consolidating all grades under one 304L 316L stainless steel coil supplier with unified traceability eliminates this risk entirely. [NEED_CITE: stainless steel grade equivalence between ASTM A240 and EN 10088 standards]
Matching Surface Finish to Engineering Environment and Aesthetic Requirement
Selecting the correct finish is as critical as choosing the right grade. A 304L 316L stainless steel coil in 2B finish meets food industry hygiene requirements with its smooth, uniformly rolled surface, while BA finish delivers the reflective consistency needed for elevator interiors and high-end architectural trim. For coastal curtain walls exposed to salt spray, 316L in HL or NO.4 finish provides directional grain that hides handling marks and maintains appearance over time. Our cold rolled range covers 0.15–3mm with tight thickness tolerance for precision fabrication, while hot rolled plate at 3–120mm serves structural and pressure vessel applications where surface appearance is secondary to mechanical performance.
Corrosion Resistance, Structural Compliance, and Certification for Regulated Markets
Engineering specifications for stainless steel in chemical plants demand grade selection based on chloride concentration and temperature — 316L for general marine environments, 904L for sulfuric acid service, and 2205 duplex for combined chloride and stress corrosion scenarios. Architectural applications in the EU require EN 10088 compliance with CE marking, while North American projects reference ASTM A240 or A480. Every shipment includes mill test certificates traceable to heat number, with third-party inspection from SGS, BV, or TUV available before loading to satisfy both project engineers and customs authorities. [NEED_CITE: EN 10088 stainless steel corrosion resistance classification]
Understanding Austenitic, Ferritic, Martensitic, and Duplex Microstructures
The 20+ grades we supply span four metallurgical families, each with distinct corrosion resistance and forming behavior. Austenitic grades including 304L, 316L, 309S, 310S, and 904L offer superior formability and weldability with excellent corrosion resistance — 304L is the workhorse for food and architectural use, while 316L molybdenum content handles chloride exposure. Ferritic grades 409L, 410L, 430, and 430A provide cost-effective alternatives for automotive exhaust and decorative trim where deep drawing is not required. Martensitic grades 410 and 420 achieve higher hardness through heat treatment for cutlery and mechanical components. Duplex 2205 and 2507 combine austenitic and ferritic structures for double the yield strength of standard austenitic grades, making them essential for offshore and chemical processing where weight reduction and chloride resistance matter simultaneously.
Hidden Costs of Incorrect Grade Selection and Missing Documentation
Specifying 304 instead of 316L for a coastal installation leads to pitting corrosion within months — the material cost difference is minimal compared to replacement and structural remediation. Ordering 2205 duplex without proper mill certificates referencing PREN values leaves project engineers unable to verify chloride resistance claims during inspection. Shipping mirror finish 8K coils without PVC film protection results in surface scratches that render the material unacceptable for architectural use, regardless of chemical compliance. These failures trace back to fragmented sourcing where grade verification, finish inspection, and documentation consistency fall between supplier responsibilities. [NEED_CITE: stainless steel pitting corrosion resistance PREN value calculation]
Why Project Procurement Teams Consolidate Stainless Orders With Us
Our cold rolled lines produce 0.15–3mm coil with thickness tolerance tight enough for precision stamping of medical device housings, while hot rolled plate at 3–120mm covers pressure vessel and structural applications without requiring separate plate suppliers. The in-house physical and chemical laboratory tests every heat for composition and mechanical properties before release, generating mill test certificates that satisfy both EU notified bodies and Middle East inspection authorities. We maintain stock of 20+ grades including difficult-to-source 904L and 2520, eliminating the six-to-eight week mill lead times that delay project schedules. Custom slit widths from 1500mm master coils and cut-to-length sheets reduce on-site waste and fabrication time. Professional container loading with waterproof paper, steel strapping, and PVC film for mirror finishes prevents transit damage — I personally inspect every load before container doors close.
Documentation & Compliance
- Mill test certificate documenting 304L and 316L chemical composition including carbon, chromium, nickel, and molybdenum content per ASTM A240 and EN 10088
- CE certificate confirming compliance with EN 10088 for stainless steel flat products destined for EU construction and architectural applications
- ISO 9001:2015 quality management certificate verified by TUV covering coil slitting, sheet cutting, and surface treatment processes
- SGS or BV third-party inspection report available at mill before loading, covering dimensional verification, surface finish grading, and packaging integrity
- Full material traceability by heat number linking each coil to chemical analysis and mechanical test results from in-house laboratory
- Complete customs documentation package including packing list, bill of lading, and certificate of origin formatted for destination country requirements
Packaging, Loading & Delivery
- Cold rolled 304L and 316L coils packed with waterproof paper inner layer and outer steel strapping on wooden pallets, preventing moisture ingress during ocean transit to Southeast Asia and Middle East ports
- BA and 8K mirror finish coils additionally wrapped with PVC film to protect reflective surface from scratches and fingerprint marks during handling and installation
- Hot rolled plate at 3–120mm thickness bundled with edge protectors and steel straps, sized to fit standard 20-foot containers for 2000mm and 2438mm lengths without overhang
- Custom slit widths from 1000mm, 1219mm, and 1500mm master coils clearly marked with heat number, grade, and thickness on each bundle for rapid identification at fabrication shops
- Professional container loading with weight distribution optimized for 20+ ton payloads, maximizing container utilization for mixed-grade orders combining coil and cut-to-length sheets
- FOB, CIF, and DDP shipping terms available with complete export documentation and tracking until arrival at destination port or project site
Streamlining Multi-Grade Stainless Procurement for Complex Projects
Submit your complete material schedule specifying grade, thickness, width, surface finish, and quantity for each item — we respond within 12 hours with unified pricing, consolidated mill test certificates, and a single production timeline. For projects requiring non-standard widths or lengths outside our 2000–3048mm range, we provide custom slitting and cutting quotations with confirmed lead times. Request third-party inspection from SGS or BV at our facility before loading to satisfy project owner or consultant requirements. Confirm your destination port and Incoterms preference so we can optimize container loading and provide accurate freight quotations.
Frequently Asked Questions
Q: How do I specify 304L across ASTM, EN, and JIS standards for a multi-region project?
A: 304L corresponds to S30403 in ASTM A240, 1.4306 in EN 10088-2, and SUS304L in JIS G4304. We provide grade equivalence confirmation with each order, and our mill test certificates reference all applicable standard designations so the material satisfies specifications regardless of which code the project engineer references.
Q: When should I specify BA finish versus 8K mirror for architectural applications?
A: BA (bright annealed) provides a consistent reflective surface suitable for elevator interiors and wall panels where uniform appearance matters but perfect mirror reflection is not required. 8K mirror finish delivers true reflective quality for decorative features and high-end retail environments. Both require PVC film protection during shipping — we include this at no additional cost for all mirror and bright finish orders.
Q: What is the thickness tolerance difference between cold rolled and hot rolled stainless coil?
A: Cold rolled coil at 0.15–3mm achieves tighter thickness tolerance suitable for precision stamping and deep drawing applications. Hot rolled plate at 3–120mm has wider tolerance appropriate for structural and pressure vessel fabrication where surface finish is secondary to mechanical properties. We provide specific tolerance ranges for each product in our quotation.
Q: Can you supply duplex 2205 and super duplex 2507 in coil form for tank fabrication?
A: Yes, we stock 2205 and 2507 in cold rolled coil up to 3mm thickness and hot rolled plate from 3–120mm. These duplex grades offer double the yield strength of austenitic 304L and 316L, making them ideal for chemical storage tanks and offshore piping where weight reduction and chloride resistance are critical. Mill test certificates include PREN values confirming pitting resistance.
Q: What documentation do you provide for EU customs clearance of stainless steel coil?
A: Every shipment includes mill test certificate per EN 10204 3.1 format, CE certificate confirming EN 10088 compliance, packing list, bill of lading, and certificate of origin. For projects requiring notified body involvement, we arrange third-party inspection from SGS, BV, or TUV before loading. All documents are prepared in English and formatted for EU import requirements.
Request Your Consolidated Stainless Steel Quotation
Send your complete material list with grades, dimensions, surface finishes, and quantities to receive unified pricing with mill test certificates and confirmed delivery timeline.
Shandong Xin Jiyuan Special Steel Tube Co., Ltd
Website: www.sdxjypipe.com
Tel: +86 531 8573 6315
Mobile/WhatsApp/WeChat: +86 188 5315 7756
Email: admin@sdxjypipe.com
