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Help CenterGalvanized Steel Coil for Automotive Exhaust Systems, 0.8mm S350GD
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Hemaokang Steel (Shandong) Co., Ltd. is proud to offer high-quality Galvanized Steel Coil for Automotive Exhaust Systems in the widely specified grade S350GD with a thickness of 0.8mm. As a newly established but rapidly growing supplier (2025) with an annual export value of US$50 million – US$100 million, we combine advanced manufacturing capabilities with strict quality control to deliver coils that meet the demanding requirements of exhaust system fabricators. Our product is engineered to provide superior corrosion resistance, excellent formability, and consistent mechanical properties, making it an ideal choice for automotive OEMs and aftermarket manufacturers.
This galvanized steel coil is produced using hot-dip galvanizing technology, ensuring a uniform zinc coating that protects against rust and high-temperature oxidation. The S350GD grade guarantees a minimum yield strength of 350 MPa, offering the strength needed for structural components in exhaust systems while maintaining formability for complex shapes. Available in various widths and coil weights, it can be customized to your exact production needs.
Key Features & Technical Specifications
- Grade: S350GD per EN 10346 – high strength with good ductility.
- Thickness: 0.8mm ±0.05mm tolerance for precision.
- Zinc Coating: Hot-dip galvanized, coating weight from 80g/m² to 275g/m² (double-sided).
- Surface Finish: Spangle-free, minimised spangle, or regular spangle as required.
- Coil Dimensions: Width 600mm – 1500mm; inner diameter 508mm or 610mm.
- Coil Weight: 3 to 8 tons per coil, with custom options available.
- Corrosion Resistance: Excellent protection against exhaust gas condensate and road salt.
- Formability: Suitable for bending, stamping, and deep drawing in exhaust component manufacturing.
- Weldability: Good weldability for assembly into exhaust systems.
| Parameter | Value |
|---|---|
| Material Grade | S350GD (EN 10346) |
| Thickness | 0.8 mm |
| Tensile Strength | 420 – 520 MPa |
| Yield Strength | ≥ 350 MPa |
| Elongation | ≥ 18% |
| Zinc Coating Weight | 80 – 275 g/m² (both sides) |
| Coating Type | Hot-Dip Galvanized (HDG) |
| Surface Treatment | Passivated, Oiled, Skin-passed (optional) |
Why Choose Our Galvanized Steel Coil for Exhaust Systems?
The automotive exhaust environment exposes metal to high temperatures, moisture, and corrosive gases. Our 0.8mm S350GD coil is specifically designed to withstand these conditions. The combination of a strong steel substrate and a thick zinc layer provides long-lasting protection against perforation corrosion. Additionally, the material's formability allows manufacturers to create complex muffler shells, pipes, and heat shields without cracking.
Customer Benefits:
- Reduced Scrap Rates: Tight thickness tolerances ensure consistent feeding into stamping presses.
- Extended Product Life: Superior corrosion resistance prolongs the service life of exhaust components.
- Cost Efficiency: Competitive pricing without compromising quality, backed by our large-scale production capacity.
- Customizable Supply: We offer slitting, cut-to-length, and custom packaging to match your inventory system.
- Reliable Lead Times: With 51–100 experienced employees and efficient logistics, we ensure on-time delivery worldwide.
Company Trust & Credibility
Hemaokang Steel (Shandong) Co., Ltd. is a ISO9001 certified manufacturer committed to quality excellence. Our annual export value of US$50–100 million reflects the trust of global customers across North America, South America, Europe, Asia, Africa, and Oceania. Located in Liaocheng, Shandong, China, we leverage a robust supply chain and modern production facilities to serve the automotive industry. We invite you to request a sample or quote – experience the difference that rigorous quality control and customer-centric service can make.
Contact us today to discuss your exhaust system material requirements. We are ready to support your production with reliable, high-performance galvanized steel coils.
Frequently Asked Questions (FAQ)
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Q: Is this coil suitable for high-temperature exhaust applications?
A: Yes, S350GD galvanized steel can withstand continuous operating temperatures up to approximately 250°C. For higher temperature zones (e.g., near the engine manifold), additional heat-resistant coatings may be required – we can advise on suitable options. -
Q: What is the minimum order quantity?
A: Our standard MOQ is 25 tons per specification. However, we can accommodate smaller trial orders for new customers. Please contact our sales team for details. -
Q: Can you provide coils with a specific spangle finish?
A: Absolutely. We offer regular spangle, minimised spangle, and spangle-free finishes. Please specify your preference during ordering. -
Q: How do you ensure the corrosion resistance of the coating?
A: We perform strict quality checks including coating weight test (magnetic induction), bend test, and salt spray test per ASTM B117. Our ISO9001 quality system ensures traceability. -
Q: What packaging options are available for export?
A: Coils are packed with anti-rust paper, plastic film, and steel strapping. For sea freight, we use wooden pallets or frames, and can add waterproof wrapping upon request. -
Q: Do you offer third-party inspection services?
A: Yes, we welcome SGS, BV, or other independent inspections. Inspection reports can be arranged at buyer's cost. -
Q: What is the typical lead time for this product?
A: For standard specifications, lead time is 15–20 days after receipt of deposit. Custom orders may require 25–30 days. -
Q: Can this coil be used for other automotive parts besides exhaust systems?
A: Yes, the S350GD grade is also suitable for chassis components, brackets, and structural reinforcements. Its strength and formability make it versatile for many automotive applications.
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