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Help Center12 Months Warranty Galvanized Steel Coil With Mill Test Report and Third-Party Inspection
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Welcome to Hemaokang Steel (Shandong) Co., Ltd., a trusted supplier in the global steel industry. Our 12 Months Warranty Galvanized Steel Coil is manufactured using premium raw materials and advanced hot-dipped galvanizing technology, ensuring excellent corrosion resistance and long service life. Each coil is accompanied by a Mill Test Report and can be tested by third-party inspection agencies upon request, giving you full confidence in product quality. With an annual export value exceeding US$50 million and a dedicated team of 51-100 professionals, we are committed to delivering reliable steel solutions to clients worldwide.
Key Features & Specifications
Our galvanized steel coils are designed to meet the diverse needs of construction, automotive, home appliances, and general manufacturing industries. Below are the core technical parameters:
| Thickness Range | 0.12mm – 4.0mm (customizable) |
| Width Range | 600mm – 1500mm (customizable) |
| Zinc Coating Weight | 40 – 275 g/m² (both sides) |
| Grade Options | DX51D, DX52D, DX53D, S250GD, S350GD, etc. |
| Surface Treatment | Chromated, Oiled, Skin Pass, Anti-fingerprint (optional) |
| Coil Inner Diameter | 508mm / 610mm |
| Coil Weight | 3 – 8 tons per coil (customizable) |
| Warranty | 12 months against manufacturing defects |
Product Advantages & Benefits
Choosing our galvanized steel coil means you get more than just a product — you get a comprehensive solution:
- Superior Corrosion Resistance: The hot-dipped zinc coating provides a robust barrier against rust and oxidation, making it ideal for outdoor and humid environments.
- Excellent Formability & Weldability: Suitable for stamping, bending, deep drawing, and welding without cracking or flaking of the coating.
- Consistent Quality: Every coil is produced under strict ISO9001 quality management system, ensuring uniform thickness, coating weight, and mechanical properties.
- Full Traceability: Each shipment includes a detailed Mill Test Report documenting chemical composition, mechanical properties, and coating analysis. Third-party inspection (e.g., SGS, BV, TÜV) is available at your request.
- Customizable Options: We offer flexible thickness, width, coating weight, and surface treatment to match your specific application requirements.
- Competitive Pricing & Reliable Supply: As a factory-based exporter with annual export value of US$50-100 million, we can provide stable supply and cost-effective solutions.
Applications
Our galvanized steel coils are widely used in:
- Roofing & wall panels for industrial and residential buildings
- Automotive body panels, chassis parts, and mufflers
- Home appliances (refrigerators, washing machines, air conditioners)
- HVAC ducts, electrical enclosures, and cable trays
- Furniture, storage racks, and agricultural silos
Why Choose Hemaokang Steel?
Hemaokang Steel (Shandong) Co., Ltd. was established in 2025, yet we have quickly built a strong reputation backed by years of industry experience from our founding team. With a dedicated workforce of 51-100 employees and an annual export value of US$50 million to US$100 million, we serve clients across North America, South America, Europe, Asia, Africa, and Oceania. Our ISO9001 certification ensures that every production process meets international quality standards. We also provide flexible payment terms, fast shipping, and after-sales support to ensure your satisfaction. When you order from us, you receive not only a high-quality galvanized steel coil with a 12-month warranty but also a reliable partner for your business growth.
Contact us today for a quotation or to arrange a factory visit. Let us discuss how our galvanized steel coil can meet your project needs with the assurance of Mill Test Reports and third-party inspection.
Frequently Asked Questions (FAQ)
1. What is the standard warranty period for your galvanized steel coils?
We offer a 12-month warranty against manufacturing defects. This warranty covers issues such as coating peeling, rust spots caused by production defects, or dimensional non-conformity. Please refer to our warranty terms for details.
2. Can you provide a Mill Test Report for each coil?
Yes, every shipment includes a comprehensive Mill Test Report (MTR) that lists the chemical composition, mechanical properties, and zinc coating weight. This ensures full traceability and quality assurance.
3. Do you accept third-party inspection before shipment?
Absolutely. We welcome inspection by third-party agencies such as SGS, BV, or TÜV. The cost is usually borne by the buyer, but we coordinate the process. This option gives you extra confidence in product quality.
4. What is the minimum order quantity (MOQ) for galvanized coils?
Our typical MOQ is 25 tons per specification, but we can accommodate smaller trial orders for new customers. Please contact our sales team to discuss your specific requirements.
5. Which steel grades are available?
We offer a wide range of commercial and structural grades including DX51D, DX52D, DX53D, S250GD, S350GD, and more. We can also customize according to your standards (e.g., ASTM A653, JIS G3302).
6. What surface treatments do you offer?
Standard treatments include chromated (passivated), oiled, and skin-pass. Anti-fingerprint coating and other special treatments are available upon request.
7. How do you pack the coils for export?
Coils are packed with VCI paper, plastic film, and steel bundling strapping to prevent moisture and damage during transportation. For sea freight, we use wooden pallets or steel cradles as needed.
8. What is the lead time for a typical order?
For standard specifications, the lead time is approximately 15-20 days after receiving the deposit. For customized orders, it may take 25-30 days. We always strive to meet the agreed delivery schedule.
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