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Help CenterASTM A240 304 Stainless Steel Coil 0.2mm-3.0mm Thickness For Heat Exchanger
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What Is Stainless Steel Coil？
Product Definition：
Stainless steel coil is a flat-rolled product manufactured by hot rolling or cold rolling stainless steel slabs into continuous coils. The coil form allows for long continuous lengths, making it the preferred raw material for high-volume stamping, roll forming, tube manufacturing, and precision slitting operations. Stainless steel coil offers excellent corrosion resistance, formability, and strength, serving as the foundation for countless industrial and consumer products-1.
Key Characteristics：
Feature Description Corrosion Resistance Excellent resistance to rust, pitting, and chemical attack – grade dependent Continuous Length Coil form enables high-volume production with minimal downtime Precision Tolerances Cold rolling achieves tight thickness tolerances (±0.02–0.10mm) Multiple Finishes 2B, BA, No.1, No.4, HL, Mirror, and custom finishes available Excellent Formability Suitable for stamping, deep drawing, roll forming, and bending Weldability Austenitic grades (304, 316) offer excellent weldability for tube/pipe manufacturing Slitting Capability Can be slit to narrow strips for precision applications 100% Recyclable Environmentally friendly with no loss of properties Coil vs Sheet – Key Differences：
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Parameter Stainless Steel Coil Stainless Steel Sheet Form Continuous coil (wound on core) Cut length (flat sheet) Thickness 0.15 – 6.0mm (cold rolled); 3.0 – 13mm (hot rolled) 0.3 – 6.0mm (sheet); 5.0mm+ (plate) Width 100 – 2000mm 1000 – 2500mm Length Continuous (100–1000+ meters) Fixed (2000–6000mm) Primary Use High-volume stamping, tube mills, roll forming Fabrication, enclosures, structural Processing Slitting, cut-to-length, stamping Shearing, laser cutting, bending Storage Vertical or horizontal on pallets Stacked flat Product Classification by Thickness & Process-1-2：
Type Thickness Range Manufacturing Process Typical Surface Finishes Cold Rolled Coil 0.15 – 6.0mm Hot rolled → annealed → cold rolled → annealed → skin pass 2B, BA, No.4, HL, Mirror Hot Rolled Coil (HRAP) 3.0 – 13mm Hot rolled → annealed → pickled No.1 (HRAP) Note: The internationally recognized crossover thickness between sheet and plate is 5.0mm per ASTM A480M-1-2.
Typical Applications by Industry：
Industry Applications Recommended Grades Automotive Exhaust systems, trim, fuel lines, seat belt components, gaskets 304, 316L, 409, 430 Appliances Refrigerator panels, washing machine drums, microwave cavities, dishwasher interiors 304, 430, 201 Construction & Architecture Roofing, wall cladding, gutters, downpipes, flashing, expansion joints 304, 316L, 430 Food & Beverage Food processing equipment, storage tanks, conveyor belts, kitchen equipment 304, 304L, 316L Tube & Pipe Manufacturing Welded tube/pipe production, sanitary tubing, exhaust tubing 304, 304L, 316L, 409 Medical & Pharmaceutical Surgical instruments, equipment housings, sterile work surfaces 304L, 316L Electronics Shielding, battery connectors, lead frames, spring contacts 301, 304, 430 Chemical Processing Storage tanks, piping, heat exchanger components 316L, 904L, 2205 HVAC Ductwork, heat exchanger fins, condenser coils 304, 316L
Key Specifications – Stainless Steel Coil
Parameter Specification / Range Remarks Standards ASTM A240, ASTM A480, EN 10088-2, JIS G4305, GB/T 3280 Others on request Grades – Austenitic 201, 301, 302, 304, 304L, 304H, 309S, 310S, 316, 316L, 316Ti, 317L, 321, 347 Most common for general use Grades – Ferritic 409, 410, 420, 430, 439, 441, 444 Cost-effective, magnetic Grades – Martensitic 410, 420, 440C Heat treatable, wear resistant Grades – Duplex 2205 (S32205), 2507 (S32750) High strength, excellent SCC resistance Grades – Super Austenitic 904L, 254SMO Extreme corrosion resistance Type Cold rolled / Hot rolled (HRAP) – Thickness – Cold Rolled 0.15 mm – 6.0 mm Tolerance: ±0.02–0.10mm Thickness – Hot Rolled 3.0 mm – 13 mm Tolerance: ±0.10–0.30mm Width – Mill Edge 1000 mm – 2000 mm Standard: 1000, 1219, 1500mm Width – Slit Edge 10 mm – 600 mm (narrow strip) Custom slitting available Coil ID 508 mm (standard), 610 mm Other IDs on request Coil Weight 3 – 15 tons per coil Custom coil weights available Surface Finish 2B, BA, No.1 (HRAP), No.4, HL, 8K Mirror, Embossed See Screen 7 for details Edge Mill edge / Slit edge / Deburred – Density (304/316) 7.93 g/cm³ – Density (430) 7.70 g/cm³ – Density (2205) 7.85 g/cm³ – Testing PMI, tensile, hardness, flatness, eddy current (optional) Mill cert EN 10204 3.1 Packaging Waterproof paper + VCI film + steel straps + wooden pallet Seaworthy, ISPM 15
Wuxi Yansheng Technology Co., Ltd. – Company Profile
Wuxi Yansheng Technology Co., Ltd. is a comprehensive technology enterprise specializing in high-quality metal raw material supply and precision processing services. Located in Wuxi City, a major steel distribution center in China, the company leverages the mature industrial chain advantages of the Yangtze River Delta region to provide professional material solutions to global customers.
As a technology-driven enterprise, Yansheng Tech maintains strategic cooperation with several well-known steel mills (such as TISCO, Baosteel, JISCO, Dongfang Special Steel, etc.) and is an authorized distributor of these mills. Our main products include stainless steel (304/316/BA/EP pipe), carbon steel, silicon steel, copper, aluminum and other materials in the form of sheets, pipes, coils, as well as custom-processed parts.
Core Business Highlights:
Material Supply: We maintain sufficient stock inventory, offering 304/316 stainless steel sheets, pipes, coils, API 5L casing, electrical steel, and more. We also accept orders for special steel grades and non-standard specifications.
Precision Processing: Equipped with imported mirror polishing machines, water jet cutting machines, high-precision slitting/leveling lines, large CNC milling machines, boring machines, and more. We provide customized services including BA/EP pipe finishing, medium plate polishing, matte finishing, embossing, plasma cutting, etc.
Main Applications: Our products are widely used in industries such as solar energy, pressure vessels, boilers, electric heating equipment, petrochemicals, environmental protection machinery, pharmaceutical and food processing, and new energy vehicles.
Our processing center is located in Xishan District, Wuxi City, covering nearly 10,000 square meters, with an experienced technical and service team. We adhere to the business philosophy of "Technology First, Quality Oriented, Service Supreme" , providing 24/7 warehousing and logistics support as well as comprehensive after-sales service. Yansheng Tech is committed to being your trusted long-term partner.
Frequently Asked Questions (FAQ)
Q1. What products do you mainly supply?
We mainly supply stainless steel (304/316/BA/EP pipes), carbon steel, silicon steel, copper, aluminum, and other materials in sheets, pipes, and coils. Customized processing services are also available.
Q2. Do you have stock available?
Yes, we maintain sufficient stock for most standard specifications. For non-standard sizes, we can accept orders with reasonable lead time.
Q3. Can you provide MTC (Mill Test Certificate)?
Yes, we provide MTC for every shipment. Third-party inspection (SGS, TÜV, BV, etc.) is also available upon request.
Q4. Do you support video inspection before shipment?
Yes, we fully support video inspection. You can also arrange an agent or third party to visit our factory for on-site inspection before shipment.
Q5. What are your main export markets?
We export to Southeast Asia, the Middle East, Europe, Africa, and South America. We have rich experience in international trade and export documentation.
Q6. What payment terms do you accept?
We accept T/T (wire transfer), L/C at sight (irrevocable), and sometimes a combination of T/T deposit + L/C balance. Payment terms are negotiable based on order size and customer history.
Q7. Can you provide samples?
Yes, samples are available for most standard products. For custom sizes, we may need to produce small batch samples. Sample cost and shipping are usually borne by the customer, but can be discussed.
Q8. What is your typical lead time?
For stock items: 7–10 days after order confirmation. For custom production: 20–30 days, depending on the specification and quantity.
Q9. What quality certifications do you have?
We provide MTC with every shipment. Our partner mills are ISO9001 certified. We can also assist with third-party inspections (SGS, TÜV, BV) upon request.
Q10. How can I get a quotation?
Please send us your material grade, specification (size, thickness, length), quantity, and preferred trade term (FOB, CIF, DAP, etc.). We will reply with a detailed quotation within 24 hours.
Send Inquiry to This Supplier
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