Description
Factory-Direct Stainless Steel Coil Supply — XJY Structure operates its own steel mill with 3 production lines, delivering 304, 316, and 410 stainless steel coils directly from raw material to finished product without intermediary markup.
Technical Specifications
| Parameter | Value |
|---|---|
| Designation | 304/316/410 Stainless Steel Coil |
| Product Type | Stainless 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 |
| 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 (or customized) |
| Technique | Cold Rolled / Hot Rolled |
| Surface Finish | 2B, 2D, BA, 8K, HL, NO.1, NO.4, Embossed, Short/Long Wire Drawing, Colored |
| Application | Medical equipment, food industry, construction & architectural decoration, kitchen utensils & tablewares, chemical & petroleum industry, storage tanks, elevator interiors, electronic equipment |
| Origin | Shandong, China |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Construction & Architecture | Elevator interior panels, building facade cladding, decorative wall systems, stairway handrails |
| Chemical & Petroleum | Storage tank shells, process piping wrappers, refinery equipment housings, corrosion-resistant containment vessels |
| Food & Medical | Kitchen countertops, surgical instrument housings, food processing conveyor surfaces, hygienic worktables |
| Industrial Equipment | Electronic equipment enclosures, appliance shells, heat exchanger wrappers, conveyor system frames |
Surface Finish Mismatch on a Stainless Steel Coil Order Costs More Than the Material
Wrong finish selection triggers full-container rejection and weeks of project delay.
I spent years running technical support at project sites before moving into sales. One mistake I witnessed early on: a buyer in the Middle East ordered 304 stainless steel coil specified for 8K mirror finish, but the warehouse shipped 2B instead. The client refused the entire container. Return freight alone wiped out months of margin on that deal. Surface finish is not a cosmetic preference — it defines whether the material passes site inspection or gets rejected at the port.
Procurement teams sourcing Stainless Steel Coil 304 316 2B BA 8K Finish Supplier materials from overseas fabricators face compounding risks: finish inconsistency across batches, missing mill test certificates that break customs clearance, and material traceability gaps when coils are sourced from third-party traders rather than integrated mills. [NEED_CITE: stainless steel surface finish classification per ASTM A480]
Matching Coil Finish and Grade to Architectural and Industrial Environments
Selecting the right Stainless Steel Coil 304 316 2B BA 8K Finish Supplier product begins with matching the operating environment to both grade chemistry and surface treatment. For elevator interiors and architectural facades, 304 with BA or 8K mirror finish delivers the reflectivity and corrosion resistance that interior and moderate exterior conditions demand. In coastal or chemical processing environments, 316L with 2B or HL finish provides molybdenum-enhanced pitting resistance. For applications requiring martensitic hardness — such as cutlery blanks or mechanical components — 410 and 420 grades respond to heat treatment while maintaining formability in coil format. XJY Structure controls the entire chain from raw slab to finished coil, meaning the grade you specify on paper is the grade that arrives on the dock, backed by heat-number traceability from our own mill.
Engineering Compliance and Certification Requirements for Stainless Steel Coil Procurement
International project specifications typically require Stainless Steel Coil 304 316 2B BA 8K Finish Supplier materials to conform to ASTM, JIS, or EN standards with full chemical and mechanical documentation. EU-bound shipments demand EN-compliant material certificates for customs clearance, while North American projects reference ASTM A240 and A480 for flat-rolled stainless. [NEED_CITE: ASTM A240 standard specification for chromium and chromium-nickel stainless steel plate] Third-party inspection through SGS, BV, or TUV is frequently specified by EPC contractors to verify surface quality, thickness tolerance, and packaging integrity before shipment. Our fabrication division reviews shop drawings against available coil widths and standard lengths — 1000 mm, 1219 mm, and 1500 mm — to minimize on-site cutting waste and ensure dimensional compliance with project tolerances.
Grade Selection and Rolling Process: What Each Specification Actually Means
The 300-series austenitic grades — 304, 316, 316L, 321 — offer high ductility and weldability, making them the default choice for deep-drawn components, architectural panels, and food-grade surfaces. The addition of molybdenum in 316 and 316L provides measurable resistance to chloride-induced pitting, which is why these grades dominate marine and chemical applications. The 400-series ferritic and martensitic grades — 410, 410L, 420, 430 — trade some corrosion resistance for higher hardness and magnetic properties, serving applications where wear resistance or heat treatment response matters more than extreme chemical exposure. Duplex grades like 2205 and 2507 combine austenitic and ferritic structures for superior stress corrosion cracking resistance in aggressive environments.
Cold rolling produces the tighter thickness tolerances and smoother surface finishes — 2B, BA, 8K — required for visible architectural and decorative applications. Hot rolling delivers the heavier gauges from 3 mm to 120 mm needed for structural and industrial use where surface appearance is secondary. The choice between processes directly affects both cost and downstream fabrication behavior. [NEED_CITE: cold rolled versus hot rolled stainless steel surface finish comparison]
Hidden Costs of Procuring Stainless Steel Coil Without Verified Documentation
Ordering Stainless Steel Coil 304 316 2B BA 8K Finish Supplier material from traders who source from unverified third-party mills creates a chain of liability gaps. When material certificates cannot be traced to a specific heat number, project inspectors may reject entire batches — even if the physical material is sound. Thickness tolerance deviations beyond standard allowances mean the delivered weight falls short of invoiced weight, a cost that only surfaces during on-site measurement. Surface defects introduced by improper packing — scratches on 8K mirror finish, edge dents on BA coils — are irreversible and require full replacement rather than rework. [NEED_CITE: stainless steel coil packaging standards for ocean freight]
Integrated Mill and Fabrication: Why Sourcing From XJY Structure Reduces Procurement Risk
XJY Structure operates as the fabrication division of Shandong Xin Jiyuan Special Steel Tube Co., backed by our own steel production facility with 3 production lines and over 2,800 raw material specifications. This vertical integration means every Stainless Steel Coil 304 316 2B BA 8K Finish Supplier order originates from a single quality system — no gaps between material supplier and fabricator. Our in-house engineering team reviews shop drawings before production begins, optimizing material usage and flagging specification conflicts early. Certified welding procedures and qualified welders handle any downstream fabrication requirements. Complete documentation packages — mill test certificates, dimensional inspection reports, coating reports — travel with every shipment, satisfying the compliance demands of EU, Middle East, Southeast Asian, and African project sites.
Documentation & Compliance
- Mill test certificate documenting 304, 316, and 410 chemical composition and mechanical properties per ASTM A240, traceable to individual heat numbers from our own steel mill
- Material conformity statements confirming compliance with ASTM, JIS, GB, AISI, DIN, BS, and EN standards as specified in purchase order
- ISO 9001 quality management system certificate covering the full production chain from raw material to finished coil
- SGS, BV, or TUV third-party inspection reports available per buyer requirement, covering surface quality, thickness measurement, and packaging integrity
- Complete export documentation package including commercial invoice, packing list, bill of lading, and certificate of origin for customs clearance in destination countries
Packaging, Loading & Delivery
- Cold rolled coils in 2B, BA, and 8K finishes wrapped in waterproof paper with PVC film protection and secured by steel strapping on wooden pallets to prevent surface scratching during ocean transit
- Hot rolled coils in NO.1 and 2D finishes bundled with edge protectors and moisture-resistant wrapping to preserve surface integrity across gauge ranges from 3 mm to 120 mm
- Coil width optimization based on standard master widths of 1000 mm, 1219 mm, and 1500 mm with slit-to-narrow-width capability to maximize container utilization and reduce on-site cutting waste
- Heat number and grade identification marked on each coil and corresponding documentation for full material traceability from mill to project site
- Professional container loading plans for oversized coil shipments with lashing and securing per international maritime standards, available FOB, CIF, or DDP terms
Starting Your Stainless Steel Coil Procurement
Share your project drawings, required steel grades, surface finish specifications, and target standards through our inquiry channel. Our team responds within 24 hours with a preliminary assessment including material availability, production scheduling, and documentation requirements. For custom slit widths or non-standard dimensions, we provide fabrication sequencing recommendations and lead time confirmation before contract execution.
Request a Quote with Mill Test Certificate
Submit your specifications — grade, finish, dimensions, quantity, and destination port — to receive a detailed quotation including material, processing, coating, packing, and shipping costs with complete documentation.
Company: Shandong Xin Jiyuan Special Steel Tube Co., Ltd
Website: www.xjystructure.com
Tel: +86 531 8573 6315
Mobile/WhatsApp/WeChat: +86 188 5315 7756
Email: admin@xjystructure.com
Address: No.11889, Jingshi West Road, Lulian Group, Jinan City, Shandong Province, China
Frequently Asked Questions
Q: What is the difference between 304, 316, and 410 stainless steel coil for my application?
A: 304 is the general-purpose austenitic grade suitable for architectural, food, and most industrial applications. 316 and 316L add molybdenum for enhanced resistance to chloride pitting, making them the preferred choice for marine, chemical, and coastal environments. 410 is a martensitic grade offering higher hardness and magnetic properties, suited for mechanical components and applications where heat treatment response is required.
Q: What surface finishes are available and how do I choose the right one?
A: We offer 2B (standard cold rolled matte), BA (bright annealed mirror-like), 8K (high-polish mirror), HL (hairline), NO.1 (hot rolled), NO.4 (brushed), embossed, and wire drawing finishes. For visible architectural applications, BA and 8K provide the highest aesthetic quality. For industrial and chemical environments where appearance is secondary, 2B and NO.1 are cost-effective choices.
Q: What documentation is included with each shipment?
A: Every shipment includes a mill test certificate documenting chemical composition and mechanical properties traceable to the specific heat number from our own steel mill. Additional documentation includes commercial invoice, packing list, bill of lading, and certificate of origin. Third-party inspection reports from SGS, BV, or TUV are available upon request.
Q: Can you provide custom slit widths and non-standard dimensions?
A: Yes. Our standard master coil widths are 1000 mm, 1219 mm, and 1500 mm, with slit-to-narrow-width capability for custom requirements. Custom lengths are also available beyond our standard 2000 mm, 2438 mm, 2440 mm, and 3048 mm options. Lead time and minimum order quantities for custom dimensions are confirmed during the quotation stage.
Q: How do you protect BA and 8K mirror finish surfaces during shipping?
A: BA and 8K finish coils receive additional PVC film wrapping beyond the standard waterproof paper and steel strapping packaging. Edge protectors are applied to prevent edge damage, and coils are secured on wooden pallets with professional container loading plans to eliminate movement during ocean transit.
