Description
Factory-Direct Cold Rolled Stainless Steel Supply — Every coil and plate ships with original mill test certificates documenting chemical composition, verified against our in-house spectrometer before container sealing.
Technical Specifications
| Parameter | Value |
|---|---|
| Designation | Stainless Steel Strip Coils / Metal Plate |
| Product Type | Stainless Steel Strip Coils / Steel Plate |
| Steel Grade | 201, 202, 304, 304L, 309, 309S, 310S, 316, 316L, 316Ti, 317L, 321, 347H, 409, 409L, 410, 410S, 420, 430, 436, 439, 441, 444, 446 |
| Thickness | 0.3–14mm for coil; 0.3–80mm for plate |
| Width | 1000mm, 1219mm, 1250mm, 1500mm, 1524mm, 1800mm, 2000mm or custom |
| Length | 2000mm, 2440mm, 2500mm, 3000mm, 3048mm, 5800mm, 6000mm or custom |
| Technique | Cold Rolled |
| Surface Treatment | 2B, 2D, HL (Hairline), BA (Bright Annealed), No.4; Colored mirror (Gold, Sapphire, Rose, Black, Bronze); Colored brushed (Gold, Sapphire, Rose, Black) |
| Packaging | Waterproof paper + metal pallet + angle bar protection + steel belt; BA and 8K with PVC film |
| Application | Industry / Food machinery / Mechanical and electrical industry / Household appliance industry / Home decoration and finishing |
| Origin | Shandong, China |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Food & Pharmaceutical Processing | Hygienic conveyor belts, mixing tanks, and filler nozzles requiring 304/316L corrosion resistance |
| Architectural Decoration | Elevator panels, column cladding, and ceiling trim using colored mirror and brushed finishes |
| Household Appliance Manufacturing | Washing machine drums, range hoods, and oven liners with 2B/BA surface coils |
| Industrial Equipment | Heat exchanger plates, furnace components, and exhaust ducting in 309S/310S high-temperature grades |
| Mechanical & Electrical | Control panel enclosures, cable trays, and motor housings in 430/441 ferritic grades |
Where Nickel Content Discrepancies Trigger Port Rejections
A 304L coil certified at 8% nickel but testing at 3.2% at destination means the entire shipment is 201 relabeled as 304L.
Global buyers sourcing cold rolled stainless steel strip coils and plate face a persistent problem: mill test certificates that look authentic on paper but do not match the material inside the container. I learned this the hard way when a West African client received two containers of 304L — the出厂证书 stated nickel at 8 points, yet SGS reinspection at port showed only 3.2%. The entire batch was 201 disguised as 304L, and both containers had to be returned for re-sorting. Since then, I personally review every heat number against spectrometer readings before release. Grade traceability is not optional — it determines whether your cargo clears customs or gets seized [NEED_CITE: stainless steel grade composition requirements per ASTM A240].
Matching Surface Finishes to Corrosion Environments
Cold rolled stainless steel strip coils and plate in austenitic grades like 304 and 316L provide reliable corrosion resistance for food processing and coastal architectural applications, while ferritic grades such as 430 and 441 offer cost-effective alternatives for indoor appliance housings where chloride exposure is minimal. The 0.3–14mm coil range covers most forming and stamping operations, while plates up to 80mm thickness serve structural supports and machine bases. Surface selection matters as much as grade selection — a BA finish on 304L for pharmaceutical tanks prevents bacterial adhesion, while a No.4 brushed finish on 430 elevator panels hides fingerprints in high-traffic lobbies. We consolidate coil and plate orders into single containers, so a buyer sourcing 316L coils for tank fabrication and 316L plates for flanges receives one shipment with unified documentation.
Engineering Compliance and Certification Pathways
Stainless steel procurement for regulated industries must align with material standards governing chemical composition and surface integrity. Food-contact equipment in the EU requires compliance with EC 1935/2004, while pressure vessels using 316L or 321 plates must meet ASME Section II material requirements [NEED_CITE: stainless steel material standards for food-contact and pressure applications]. For architectural projects in North America, ASTM A240 governs chromium and chromium-nickel stainless plate and sheet, whereas EN 10088 applies across European markets. Our mill test certificates document the full chemical breakdown — carbon, chromium, nickel, molybdenum content — per heat number, enabling traceability from slab to finished coil. Third-party inspection through SGS or BV is available before shipment, providing independent verification that satisfies both customs authorities and project specification engineers.
Understanding Cold Rolling and Grade Selection
The cold rolling process reduces stainless steel to precise thickness with tight dimensional tolerance and smooth surface quality — critical for decorative applications where even minor thickness variation creates visible light distortion. Austenitic grades (304, 316L, 321) offer superior formability and weldability, making them suitable for deep-drawn kitchen sinks and welded tank assemblies. Ferritic grades (409, 430, 441) contain lower nickel content, reducing material cost while providing adequate corrosion resistance for automotive exhaust and indoor decorative panels. Martensitic grades (410, 420) respond to heat treatment for increased hardness, serving cutlery and surgical instrument applications. The 200-series grades like 201 and 202 substitute manganese and nitrogen for partial nickel replacement, offering budget-friendly options for non-critical structural trim — but buyers must verify actual nickel content, as the price gap between 201 and 304 creates incentive for mislabeling [NEED_CITE: nickel content verification methods for stainless steel grade identification].
Hidden Costs of Unverified Material Sourcing
Purchasing cold rolled stainless steel strip coils and plate without independent verification creates downstream liabilities that far exceed the initial price savings. Material misidentification — 201 shipped as 304L, or 430 labeled as 304 — leads to premature corrosion failure in coastal or chemical environments, triggering warranty claims and project delays. Missing or forged mill test certificates cause customs holds at destination ports, where import authorities increasingly require chemical composition documentation per ASTM or EN standards [NEED_CITE: customs documentation requirements for stainless steel imports]. Negative tolerance abuse — where actual thickness falls below the specified minimum — reduces load-bearing capacity and violates engineering specifications, forcing costly on-site rework or complete replacement. The true cost of cheap stainless is measured in rejected shipments, failed inspections, and compromised structural integrity.
Why Procurement Teams Source Stainless From Us
Our Jinan facility operates dedicated cold rolling lines for stainless strip coils and plates, eliminating trading company markups and providing direct factory pricing with volume-based discounts for recurring buyers. Every heat of stainless steel passes through our in-house spectrometer before release — I personally sign off on mill test certificates, ensuring that the nickel, chromium, and molybdenum content matches the grade designation. We maintain ready stock across 20+ grades from 201 to 446, covering standard widths from 1000mm to 2000mm and thickness from 0.3mm to 80mm, enabling urgent orders to ship within days rather than weeks. For project buyers requiring mixed containers — coils for roll-forming and plates for structural bases — we consolidate loading to maximize container weight utilization and reduce freight cost per ton. Export documentation, customs clearance support, and container loading optimization are handled by our dedicated export team, with SGS/BV inspection available at buyer’s request.
Documentation & Compliance
- Mill test certificate documenting 304L chemical composition (C ≤0.03%, Cr 18–20%, Ni 8–12%) and cold rolled mechanical properties per ASTM A240
- CE certificate confirming compliance with EN 10088 stainless steel standards for European market access
- ISO 9001:2015 quality management certificate covering cold rolling, surface treatment, and inspection processes
- SGS or BV third-party inspection report verifying grade composition and surface finish before container sealing
- Heat number traceability linking each coil and plate to its original melt chemistry and rolling batch
- Complete customs documentation including packing list, bill of lading, and certificate of origin for destination port clearance
Packaging, Loading & Delivery
- Cold rolled stainless steel strip coils in 2B and BA finish wrapped in waterproof paper with metal pallet base and angle bar edge protection, secured by steel belt to prevent unspooling during ocean transit
- Colored mirror and brushed finish coils (Gold, Sapphire, Rose, Black) additionally protected with PVC film to prevent surface scratching during handling and transport
- Stainless steel plates in 304, 316L, and 321 grades stacked on wooden pallets with interleaving paper between sheets, bundled with steel straps for container loading
- Custom-length plates cut to 2000mm–6000mm per order, with length tolerance marked on each piece for on-site identification
- Heat number and grade designation stamped on coil ID and plate surface, enabling traceability verification at destination
- FOB, CIF, and DDP shipping terms available, with container weight optimization for heavy stainless coil cargo (up to 27 tons per 20ft container)
Requesting Quotes and Mill Certificates for Your Project
Submit your specifications — grade, thickness, width, length, surface finish, and quantity — along with destination port to receive a detailed quotation with volume pricing and lead time. We provide sample coils and original mill test certificates for quality verification before contract signing, and our export team confirms container loading plans and documentation requirements to ensure smooth customs clearance.
Start Your Stainless Steel Procurement
Send your specifications via email or WhatsApp to receive a factory-direct quotation with mill test certificates within 12 hours.
Shandong Xin Jiyuan Special Steel Tube Co., Ltd
Website: www.sdxinjiyuan.com
Tel: +86 531 8573 6315
Mobile/WhatsApp/WeChat: +86 188 5315 7756
Email: admin@sdxinjiyuan.com
Address: No.11889, Jingshi West Road, Lulian Group, Jinan City, Shandong Province, China
