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Help Center409 Stainless Steel Coil for Automotive Exhaust System 2mm Thickness Heat Resistant
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Welcome to Hemaokang Steel (Shandong) Co., Ltd., a reliable supplier of high-quality stainless steel products. Our 409 Stainless Steel Coil for Automotive Exhaust System (2mm Thickness, Heat Resistant) is designed to meet the rigorous demands of modern exhaust manufacturing. With an annual export value of US$50-100 Million and a dedicated team of 51-100 professionals, we ensure every coil delivers consistent performance, excellent weldability, and exceptional value.
This coil is specifically engineered for automotive exhaust systems where heat resistance and corrosion resistance are critical. The 2mm thickness provides optimal strength while maintaining formability for complex bends and flanges. Trusted by clients across North America, Europe, Asia, and beyond, our 409 stainless steel coil is the cost-effective solution for durable exhaust components.
Key Features & Technical Specifications
- Excellent Heat Resistance: Capable of withstanding continuous operating temperatures up to 700°C, ideal for catalytic converters, mufflers, and exhaust pipes.
- Superior Corrosion Resistance: Resists exhaust gas condensate and road salt, extending service life in harsh environments.
- Great Weldability: Low carbon content minimizes sensitization during welding, ensuring strong, crack-free joints.
- Uniform 2mm Thickness: Tight tolerance (±0.05mm) ensures consistent performance in stamping and forming processes.
- Customizable Dimensions: Available in widths from 600mm to 1250mm; coil inner diameter (508mm or 610mm) as per request.
- Surface Finish Options: 2B (cold rolled, bright) or No.4 (brushed) finish to suit downstream processing.
- Compliance with Standards: Manufactured to ASTM A240, JIS G4305, and EN 10088 specifications.
- ISO9001 Certified: Quality management system ensures traceability and consistency.
| Parameter | Value |
|---|---|
| Material Grade | 409 Stainless Steel (UNS S40900) |
| Thickness | 2.0 mm |
| Width | 600 – 1250 mm (customizable) |
| Tensile Strength (min) | 380 MPa |
| Yield Strength (0.2% offset) | 205 MPa |
| Elongation (min in 2") | 20% |
| Hardness (Rockwell B) | 70 HRB max |
| Surface Finish | 2B / No.4 (customizable) |
| Packaging | Standard export packing (sea-worthy) |
Why Choose Our 409 Stainless Steel Coil?
- Cost-Effective Alternative: 409 stainless steel offers similar heat resistance to 304 or 321 at a fraction of the cost, making it the preferred choice for OEM exhaust systems.
- Optimized for Automotive Use: The chemical composition (11% Cr, 0.5% Ti, low carbon) balances oxidation resistance and mechanical properties for exhaust applications.
- Improved Durability: Titanium stabilization prevents intergranular corrosion during welding and high-temperature exposure.
- Processing Flexibility: Easily cut, stamped, bent, and welded using standard techniques; suitable for both manual and automated production lines.
- Reliable Supply: We maintain large inventories and can deliver in 15-30 days after order confirmation. Custom slitting and cutting are available.
Who We Are & Our Commitment
Hemaokang Steel (Shandong) Co., Ltd. is a modern enterprise located in Liaocheng, Shandong, China – a major steel production hub. Since our establishment in 2025, we have rapidly grown to serve global markets including North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and Western Europe. Our products are shipped primarily via Qingdao Port, ensuring efficient logistics worldwide.
We are proud to hold ISO9001 certification, which underpins our commitment to quality control from raw material sourcing to final packaging. Each coil undergoes rigorous inspection for thickness, surface quality, and mechanical properties. With an annual export value exceeding US$50 million, we have earned the trust of automotive component manufacturers and distributors globally.
Contact Us Today
Whether you require standard sizes or a custom specification, our experienced team is ready to provide technical support, competitive pricing, and timely delivery. Choose Hemaokang 409 Stainless Steel Coil for your exhaust system needs – quality that drives performance.
Frequently Asked Questions (FAQ)
-
What is the maximum operating temperature for 409 stainless steel?
409 stainless steel can withstand continuous temperatures up to 700°C (1292°F) and intermittent exposure up to 815°C (1500°F). It is suitable for most exhaust system components like manifolds and mufflers. -
Can this coil be used for welded exhaust pipes?
Yes, 409 steel offers excellent weldability. It is commonly TIG or MIG welded with 409 filler metal; preheating is not required, but post-weld cooling may be needed to minimize distortion. -
What widths and lengths are available?
Standard widths range from 600mm to 1250mm. Coils can be slit to custom widths. Length (weight) per coil is typically 5-10 tons, adjustable per request. -
What is the lead time for delivery?
For standard specifications, delivery is 15-20 days after deposit. Custom sizes may take 20-30 days. We ship from Qingdao Port, and transit time depends on the destination. -
Do you provide third-party inspection certificates?
Yes, we support SGS, BV, or other third-party inspections at buyer’s cost. Mill test certificates are provided with each shipment free of charge. -
How is the coil packaged to prevent damage?
Coils are packed with waterproof paper, plastic film, steel strapping, and wooden pallets or crates for sea transportation. Inner diameter protection rings are optional. -
What is the difference between 409 and 441 stainless steel for exhaust systems?
Both are ferritic stainless steels. 441 has higher chromium and molybdenum for better oxidation resistance and creep strength, often used in hotter sections. 409 is more cost-effective for moderate temperature zones. -
Can you supply samples before bulk order?
Yes, we offer small samples (e.g., A4 size) for quality evaluation. Sample cost is negotiable, and shipping is paid by the buyer. Samples are usually dispatched within one week.
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