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Help CenterAutomotive Exhaust Grade 409L Stainless Steel Coil 1.2mm-3.0mm Hot Rolled Coil for Muffler and Pipe Production
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Welcome to Hemaokang Steel (Shandong) Co., Ltd. — a dedicated supplier of specialty stainless steel products from Liaocheng, Shandong, China. Our Automotive Exhaust Grade 409L Stainless Steel Coil is carefully engineered to meet the rigorous requirements of muffler and exhaust pipe production, delivering reliable performance and consistent quality. With a thickness range of 1.2mm to 3.0mm, this hot rolled coil offers the perfect balance of strength, formability, and corrosion resistance for automotive exhaust systems.
As a manufacturer-focused supplier, we understand that every coil must perform seamlessly in high-temperature environments while resisting oxidation and stress corrosion. That is why we strictly control the chemical composition and mechanical properties of our 409L material. Whether you are producing OEM exhaust components or aftermarket mufflers, this coil is designed to deliver long service life and low processing costs.
Key Characteristics of 409L Stainless Steel Coil
- Excellent high-temperature resistance: Stable performance at elevated temperatures, ideal for heat-affected zones in exhaust systems.
- Superior formability: Easy to bend, stamp, and weld, allowing complex muffler and pipe geometries without cracking.
- Good corrosion resistance: Resists exhaust gas condensation and road salt exposure, enhancing product durability.
- Cost-effective alternative: Lower alloy content compared to 304 or 316, yet provides sufficient oxidation resistance for exhaust applications.
- Consistent mechanical properties: Controlled rolling and annealing processes ensure uniform tensile strength and hardness across the coil.
Technical Specifications
| Parameter | Available Value |
|---|---|
| Thickness | 1.2mm – 3.0mm |
| Width | Customizable (standard widths upon request) |
| Surface Finish | Hot rolled, annealed & pickled |
| Edge Condition | Mill edge or slit edge (optional) |
| Tensile Strength | Typically 380 – 480 MPa (meets standard requirements) |
| Yield Strength | Approximately 170 – 230 MPa |
| Elongation | ≥ 20% (provides good ductility) |
Manufacturing Advantages for Your Production Line
Our 409L coil is supplied in hot rolled condition, which means it offers excellent flatness and surface quality for direct use in stamping and forming. The material chemistry is balanced with low carbon content, minimizing carbide precipitation during welding and maintaining weld integrity. For muffler shells, end caps, and partition plates, this coil provides tight thickness tolerances that reduce material waste and ensure consistent component dimensions.
Additionally, the coil is easy to process with standard tooling. You can achieve precise cuts, deep draws, and high-speed welding without frequent tool wear. This translates into higher production efficiency and lower manufacturing costs. We also offer customized width slitting and cut-to-length services to match your specific production requirements, saving you additional processing time.
Quality Assurance & Global Shipping
At Hemaokang Steel, we take quality seriously. Our production and inspection processes are managed under an ISO9001 quality management system. Every coil is tested for chemical composition, mechanical properties, and surface condition before shipment. We partner with reliable logistics networks from Qingdao Port to deliver your orders safely and efficiently to markets across North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and many other regions.
With an annual export value of US$50 million to US$100 million and a dedicated team of 51–100 employees, we have the capacity and experience to support both small trial orders and large volume projects. Our location in Liaocheng, Shandong, gives us access to abundant raw materials and efficient inland transportation, ensuring competitive pricing and dependable delivery schedules.
Why Choose Our 409L Coil?
- Trusted supply capability: Annual export value reaching tens of millions of US dollars reflects strong production and sourcing capabilities.
- Application-driven design: Developed specifically for mufflers and exhaust pipes — not just a general-purpose steel coil.
- Flexible customization: Thickness, width, hardness, and edge condition can be adjusted to your unique processing needs.
- Reliable after-sales support: Our team provides technical guidance and quick responses to inquiries.
- Sustainable partnership: We aim to be a long-term strategic supplier for your stainless steel requirements.
Packaging & Logistics
Coils are securely packed with anti-rust paper, plastic film, and steel strapping to prevent damage during ocean transport. Export standard wooden pallets or steel frames are available to protect the inner diameter and edges. We routinely ship to global destinations via Qingdao Port, providing real-time shipping documents and cargo tracking information.
If you need a specific coil width, a particular temper condition, or additional inspection reports, please let us know. Our sales and technical teams are ready to discuss your project details and recommend the best specification for your production process.
Contact us today to request a quote or a sample. With our strong manufacturing background, export experience, and customer-first approach, we are confident that our 409L stainless steel coil will deliver both performance and value to your business. Let Hemaokang Steel be your trusted partner in driven quality and reliability.
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