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Help Center304 Stainless Steel Foil Coil ASTM A240 Cold Rolled Anti Corrosion Stainless Steel Strip Coil
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As a leading manufacturer based in Wuxi, China, Wuxi Yansheng Technology Co., Ltd. specializes in the production of high-quality stainless steel coils and strips. Our 304 Stainless Steel Foil Coil ASTM A240 Cold Rolled Anti Corrosion Stainless Steel Strip Coil is designed to meet the rigorous demands of modern industries, offering superior corrosion resistance, excellent formability, and consistent dimensional precision. With over 7 years of experience and a factory spanning 1,000-3,000 square meters, we ensure every coil is manufactured under strict quality control, making it a reliable choice for your critical applications.
This product is cold-rolled to achieve a smooth surface finish and tight thickness tolerances, ideal for applications requiring thin gauge stainless steel. The material conforms to ASTM A240 standards, guaranteeing chemical composition and mechanical properties that meet international requirements. Its anti-corrosion property makes it suitable for harsh environments, while the coil form allows for efficient processing in stamping, slitting, and forming operations.
Key Features & Technical Specifications
Material Grade: 304 Stainless Steel (0.08% max Carbon, 18-20% Chromium, 8-10.5% Nickel) – provides excellent corrosion resistance in atmospheric and mild chemical environments.
Cold Rolling Process: Ensures finer surface finish, tighter tolerances, and improved mechanical properties compared to hot-rolled coils.
Surface Finishes Available: 2B (mill finish), BA (bright annealed), No.4 (brushed), HL (hairline), and custom finishes upon request.
Thickness Range: 0.05mm to 3.0mm, with tolerances as tight as ±0.005mm for thin foils.
Width Range: 10mm to 1250mm, slit to customer specifications.
Hardness Tempers: Soft (annealed), 1/4H, 1/2H, 3/4H, Full Hard – suitable for various forming and strength requirements.
Edge Condition: Slit edge or deburred edge optional.
| Parameter | Typical Value | Notes |
|---|---|---|
| Tensile Strength | ≥520 MPa | Annealed condition |
| Yield Strength (0.2%) | ≥205 MPa | Annealed condition |
| Elongation in 50mm | ≥40% | For soft temper |
| Hardness (Rockwell B) | ≤85 HRB | Annealed condition |
Advantages for Your Business
Cost Efficiency: Coil form reduces waste and processing time compared to sheet or plate; you can slit or cut to your exact required dimensions.
Corrosion Resistance: 304 grade offers strong protection against oxidation, rust, and many chemicals, extending product lifespan in outdoor or industrial environments.
Formability & Weldability: Excellent ductility allows for deep drawing, bending, and welding without cracking; suitable for complex shapes.
Consistent Quality: Each coil undergoes rigorous inspection including thickness gauge, surface defect detection, and mechanical testing to ensure uniformity.
Customizable Options: Choose from various surface finishes, edge conditions, hardness tempers, and packaging to meet your specific application needs.
Trust & Reliability
Wuxi Yansheng Technology Co., Ltd. has been a trusted supplier since 2017, with an annual export value of US$50-100 million reaching markets across North America, South America, Europe, Asia, and Africa. Our factory employs 101-200 skilled workers and is certified under ISO9001, ISO14000, and other management systems, ensuring consistent quality and environmental responsibility. We ship from major ports including Tianjin, Shanghai, Qingdao, and Ningbo, providing flexible logistics solutions. With a strong commitment to customer satisfaction, we offer technical support, sample availability, and prompt delivery. Choose our 304 stainless steel foil coil for your next project – contact us today to discuss your requirements!
Frequently Asked Questions (FAQ)
What is the minimum order quantity (MOQ) for this coil?
Our standard MOQ is 1 ton per size, but we can accommodate trial orders for as low as 500 kg for new customers.Can you provide samples for testing?
Yes, we offer free samples (freight collect) for qualified customers. Contact us for details.What surface finishes are available?
We offer 2B, BA, No.4, HL, and custom finishes. The most common for anti-corrosion applications is 2B or BA.How do you ensure the anti-corrosion property?
Our 304 grade has a minimum of 18% chromium, forming a passive oxide layer that protects against corrosion. Additional surface treatments like passivation are available.Is the coil suitable for food contact applications?
Yes, 304 stainless steel is food-grade and compliant with FDA and EU regulations. Our production follows HACCP principles (certification available).What packaging do you use for export?
We use standard export wooden pallets, with inner waterproof paper and outer steel strapping to prevent damage during transit.Can you customize the width and thickness?
Yes, we can slit to your exact width (10mm to 1250mm) and produce thicknesses from 0.05mm to 3.0mm with tight tolerances.What is the lead time for bulk orders?
Typically 15-25 working days after order confirmation, depending on quantity and specifications. We offer expedited service for urgent orders.
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