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Help Center304 Stainless Steel Coil for Automotive Exhaust Systems 0.8mm-2.0mm Thickness 409 Grade
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Hemaokang Steel (Shandong) Co., Ltd. is a trusted supplier of high-quality stainless steel products, operating with an annual export value of US$50-100 million and serving markets across North America, South America, Europe, Asia, Africa, and Oceania. Since our establishment in 2025, we have focused on delivering precision-engineered 304 Stainless Steel Coils for Automotive Exhaust Systems with thickness ranging from 0.8mm to 2.0mm. Our material is specifically designed to meet the demanding requirements of exhaust applications, offering excellent corrosion resistance, high-temperature stability, and formability – all backed by ISO9001 certification.
Our 304 stainless steel coil is manufactured using advanced cold-rolling technology and strict quality control processes. It is ideal for manufacturing exhaust pipes, mufflers, catalytic converter components, and other automotive exhaust system parts. The coil is available in various widths and surface finishes to suit different fabrication needs, and we provide customized options to meet specific dimensional requirements.
Key Features & Technical Specifications
- Material Grade: 304 stainless steel (equivalent to 0Cr18Ni9), with excellent oxidation resistance up to 870°C in intermittent service and 925°C in continuous service.
- Thickness Range: 0.8mm – 2.0mm, with tight tolerance (±0.05mm) to ensure consistent performance.
- Width Options: Customizable from 600mm to 1500mm, slit edges available for precise widths.
- Surface Finish: 2B (cold rolled, bright annealed), BA (bright annealed), or No.1 (hot rolled) – choose based on your welding or forming process.
- Mechanical Properties: Tensile strength ≥ 520 MPa, yield strength ≥ 205 MPa, elongation ≥ 40%.
- Corrosion Resistance: Resists exhaust gas condensate, road salt, and high-temperature oxidation.
- Formability: Suitable for deep drawing, bending, welding, and roll forming without cracking.
- Coil ID: 508mm or 610mm (standard), other sizes available upon request.
| Parameter | Value | Notes |
|---|---|---|
| Grade | 304 (SUS304) | Similar to 409 for exhaust use |
| Thickness (mm) | 0.8, 1.0, 1.2, 1.5, 2.0 | Custom sizes available |
| Width (mm) | 600 – 1500 | Slit or mill edge |
| Surface Finish | 2B / BA / No.1 | Optional |
| Coil Weight (ton) | 3 – 8 (per coil) | can be customized |
| Packing | Waterproof paper + steel strapping + wooden pallet | Sea-worthy |
Advantages & Customer Benefits
- High Temperature Resistance: 304 stainless steel withstands exhaust gas temperatures up to 900°C, preventing scaling and deformation.
- Excellent Weldability: Low carbon content minimizes carbide precipitation during welding, ensuring strong joints without cracking.
- Cost-Effective: Compared to Inconel or titanium, 304 offers a balanced performance-to-cost ratio for mass-produced exhaust systems.
- Long Service Life: Resists corrosion from acidic condensate and road salt, reducing maintenance frequency.
- Customizable Dimensions: We can slit coils to exact widths and cut to length, reducing waste in your production line.
- Consistent Quality: ISO9001 certified process ensures every coil meets the same high standard.
With a dedicated team of 51-100 employees and a strong global supply chain, Hemaokang Steel guarantees timely delivery and competitive pricing. Our 304 stainless steel coil for automotive exhaust systems has been successfully supplied to manufacturers in Europe, North America, and Southeast Asia. We offer flexible MOQ, fast sample service, and technical support to help you choose the right material for your exhaust design.
Why Choose Hemaokang Steel?
Since our founding in 2025, we have rapidly grown to export US$50-100 million annually, serving customers in 14+ global markets. Our factory in Liaocheng, Shandong, is equipped with modern cold-rolling lines and precision slitting machines. We hold ISO9001 certification, ensuring rigorous quality control from raw material sourcing to final packaging. Every coil undergoes thickness, surface, and mechanical property inspection before shipment. We are committed to providing high-quality stainless steel products that meet the specific needs of the automotive exhaust industry.
Contact us today for a quotation or technical data sheet. Let us help you optimize your exhaust system manufacturing with reliable 304 stainless steel coils.
Frequently Asked Questions (FAQ)
-
Q: Is this 304 stainless steel coil suitable for high-temperature exhaust systems?
A: Yes, 304 stainless steel can handle continuous service temperatures up to 925°C, making it ideal for automotive exhaust components like mufflers and pipes. -
Q: What is the difference between 304 and 409 grades for exhaust?
A: 409 is a ferritic stainless steel with lower cost and good oxidation resistance, but 304 offers better corrosion resistance and formability. Our coil is 304 but can be used as a higher-performance alternative to 409 in many exhaust applications. -
Q: Can you provide coils with a thickness of 1.2mm or 1.5mm?
A: Absolutely. We offer thicknesses from 0.8mm to 2.0mm, and we can also produce non-standard thicknesses upon request with a minimum order quantity. -
Q: What surface finishes are available?
A: We offer 2B (bright annealed), BA (bright annealed with mirror-like finish), and No.1 (hot rolled, matte). For exhaust systems, 2B is commonly used for good appearance and weldability. -
Q: Do you provide samples for testing?
A: Yes, we can provide free samples (you pay shipping) for quality evaluation. Please contact our sales team with your requirements. -
Q: What is the typical lead time for this product?
A: For standard specifications, lead time is 15-20 days after order confirmation. For custom sizes, it may extend to 25-30 days. -
Q: How do you ensure the quality of the coil?
A: We follow ISO9001 quality management system. Each coil is tested for chemical composition, mechanical properties, surface condition, and dimensional tolerance. We provide mill test certificates with every shipment. -
Q: Do you export to my country? What payment terms do you accept?
A: We export to all major regions including North America, Europe, South America, Asia, Africa, and Oceania. Common payment terms are T/T (30% deposit, balance before shipment) or L/C at sight. We can discuss flexible terms for long-term partners.
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