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Help CenterStainless Steel Coil 304 1.5mm Thick for Automotive Exhaust Systems Manufacturing
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Hemaokang Steel (Shandong) Co., Ltd. is proud to present our premium Stainless Steel Coil 304 – 1.5mm Thick, specifically engineered for the demanding requirements of automotive exhaust systems manufacturing. With our ISO9001 certification and annual export value exceeding US$50 million, we have established a reliable supply chain serving customers across North America, South America, Europe, Asia, and beyond. Our 304 stainless steel coil combines excellent corrosion resistance, high-temperature stability, and superior formability, making it the ideal material for exhaust manifolds, catalytic converter housings, mufflers, and exhaust pipes.
This product is manufactured under strict quality control to ensure consistent thickness, flatness, and surface finish. Whether you need large volumes for mass production or custom widths for specialized applications, Hemaokang Steel delivers with precision and reliability.
Key Features & Technical Specifications
- Material Grade: AISI 304 (UNS S30400) – excellent oxidation resistance up to 870°C, suitable for hot exhaust gases.
- Thickness: 1.5mm ±0.05mm precision tolerance, ensuring consistent bending and welding performance.
- Width Options: Standard widths of 1000mm, 1219mm, 1500mm, with custom widths available upon request.
- Surface Finish: 2B (cold rolled, bright annealed), BA (bright annealed), or No.1 (hot rolled) finish to match your manufacturing process.
- Edge Treatment: Slit edge or mill edge, depending on your fabrication needs.
- Mechanical Properties: Tensile strength ≥ 520 MPa, yield strength ≥ 205 MPa, elongation ≥ 40% – ensures durability under vibration and thermal cycling.
- Formability: Excellent deep drawing and bending characteristics for complex exhaust geometries.
- Weldability: Compatible with TIG, MIG, and laser welding processes without cracking.
- Corrosion Resistance: Resists exhaust condensate, road salt, and high-temperature oxidation.
Typical Mechanical Properties (1.5mm thickness)
| Property | Value | Standard |
|---|---|---|
| Tensile Strength | ≥ 520 MPa | ASTM A240 |
| Yield Strength (0.2% offset) | ≥ 205 MPa | ASTM A240 |
| Elongation (in 50mm) | ≥ 40% | ASTM E8 |
| Hardness (Rockwell B) | ≤ 85 HRB | ASTM A240 |
| Surface Finish | 2B (Ra ≤ 0.5μm) | Customer specification |
Advantages for Automotive Exhaust Manufacturing
- High-Temperature Performance: 304 stainless steel maintains structural integrity at continuous operating temperatures up to 870°C, ideal for exhaust gas flow.
- Corrosion Resistance: Withstands acidic condensate from combustion and road salt exposure, preventing premature failure.
- Excellent Formability: The 1.5mm gauge allows easy bending, stamping, and hydroforming for complex exhaust components.
- Weldability: Low carbon content minimizes carbide precipitation during welding, ensuring strong, leak-free joints.
- Consistent Quality: Each coil is mill-certified and tested for thickness, chemistry, and mechanical properties, reducing scrap rates in your production line.
- Customizable Dimensions: We offer cut-to-length sheets, slit coils, or full-width coils to match your specific manufacturing process.
Why Choose Hemaokang Steel?
Established in 2025, Hemaokang Steel (Shandong) Co., Ltd. has rapidly grown into a trusted supplier of stainless steel products, with an annual export value between US$50 million and US$100 million. Our team of 51-100 experienced professionals ensures that every coil meets rigorous international standards. We hold ISO9001 certification, demonstrating our commitment to quality management systems. Our products are exported to over 15 regions including North America, South America, Europe, Southeast Asia, the Middle East, and Africa. We understand the critical nature of automotive exhaust components, and we are dedicated to providing materials that enhance your product reliability and reduce manufacturing costs.
We maintain a large inventory of 304 stainless steel coils in various thicknesses and widths, ensuring fast delivery times. Our flexible manufacturing capabilities allow us to tailor packaging (wooden pallets, steel frames, or export-wrapped coils) to protect your material during transit. With competitive pricing and responsive customer service, we aim to be your long-term partner for stainless steel coil requirements.
Contact us today for a quote or to request a sample coil. Let Hemaokang Steel supply the quality you need for your automotive exhaust systems.
Frequently Asked Questions (FAQ)
-
Q: What is the exact thickness tolerance for your 1.5mm coil?
A: Our standard tolerance is ±0.05mm. For tighter requirements, we can supply coils with ±0.03mm tolerance upon request. -
Q: Can you provide a mill test certificate (MTC) for each coil?
A: Yes, we supply a mill test certificate that includes chemical composition, mechanical properties, and thickness verification for every batch. -
Q: What surface finishes are available for automotive exhaust applications?
A: We offer 2B (most common for exhaust systems), BA (bright finish), and No.1 (hot rolled) finishes. The choice depends on your forming and welding process. -
Q: What is the minimum order quantity (MOQ)?
A: For standard widths (1000-1500mm), the MOQ is 5 tons. For special widths or finishes, MOQ may be 10 tons. Please contact us for details. -
Q: How do you package the coils to prevent damage during shipping?
A: Coils are packaged with anti-rust paper, plastic wrapping, and steel banding, then placed on wooden pallets or in steel frames. Inner diameters are 508mm or 610mm as per standard. -
Q: Can you slit the coil to narrower widths?
A: Yes, we offer slitting services to produce any width from 50mm up to the full width. Lead time for slitting is typically 5-7 working days. -
Q: Is this material suitable for TIG welding?
A: Absolutely. 304 stainless steel is highly weldable with TIG, MIG, and laser processes. The 1.5mm thickness is ideal for thin-gauge exhaust components. -
Q: What is the typical delivery time for orders to North America?
A: For standard stock sizes, delivery takes 15-20 working days after deposit. For custom orders, please allow 25-30 working days. We ship via sea or air as needed.
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