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Help CenterGalvanized Steel Coil for Automotive Deep Drawing, DX56D+Z, ASTM A653, Oil-Coated
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Welcome to Hemaokang Steel (Shandong) Co., Ltd. – your trusted partner in high-performance galvanized steel solutions. As a newly established yet rapidly growing enterprise with an annual export value between US$50 million and US$100 million, we are dedicated to delivering premium materials that meet the strictest industrial standards. Our Galvanized Steel Coil for Automotive Deep Drawing, DX56D+Z, ASTM A653, Oil-Coated is specifically engineered to support the demanding requirements of automotive stamping and deep drawing processes. With ISO9001 certification backing our quality management system, we ensure every coil performs reliably in complex forming operations, reducing scrap rates and enhancing production efficiency.
This product is a hot-dip galvanized steel coil with a specialized DX56D+Z grade, designed for exceptional ductility and formability. The “DX56” designation indicates a low-carbon, aluminum-killed steel with very high deep-drawing capability, while the “D+Z” suffix confirms a zinc coating applied via continuous hot-dip process. Compliant with ASTM A653, our coil offers consistent mechanical properties and a uniform, oil-coated surface that provides temporary corrosion protection during storage and transportation. Whether you are manufacturing body panels, fuel tanks, or structural components, this steel coil delivers the precision and repeatability your production line demands.
Key Features & Technical Specifications
- Superior Deep Drawing Performance: DX56D+Z grade ensures excellent elongation (typically ≥40%) and low yield strength (≤140 MPa for 0.5mm thickness), allowing complex shapes without cracking or tearing.
- Uniform Zinc Coating: Hot-dip galvanized coating with tight thickness control (Z100 to Z275 per ASTM A653) provides long-term corrosion resistance and excellent paint adhesion.
- Oil-Coated Surface: A light, removable oil film protects the coil from moisture and contaminants during transit, easy to degrease before welding or painting.
- Precise Dimensional Tolerance: Thickness tolerance ±0.05mm, width tolerance ±2mm, ensuring consistent feeding in progressive dies.
- Flat & Shape Control: Stress-relieved and skin-passed to minimize waviness and camber, reducing die wear and downtime.
- Stable Mechanical Properties: Strictly tested for yield strength, tensile strength, and hardness to ensure batch-to-batch consistency.
| Parameter | Typical Value |
|---|---|
| Grade | DX56D+Z (EN 10346) / CS Type B (ASTM A653) |
| Yield Strength (0.5mm) | ≤140 MPa |
| Tensile Strength | 270 – 380 MPa |
| Elongation | ≥40% |
| Coating Weight (Z275) | 275 g/m² (both sides) |
| Oil Coating | Removable mineral oil, 0.5-2.0 g/m² |
| Thickness Range | 0.3 mm – 3.0 mm |
| Width Range | 600 mm – 1500 mm |
| Coil ID | 508 mm / 610 mm |
Customer Benefits
- Reduced Tooling Wear: The optimized surface smoothness and uniform coating minimize friction in deep drawing dies, extending tool life and reducing maintenance costs.
- Higher Yield: Excellent formability lowers the risk of splits and wrinkles, achieving rejection rates below 0.5% in controlled stamping trials.
- Simplify Inventory: One coil grade covers multiple automotive part applications, from exposed panels to structural reinforcements, reducing SKU complexity.
- Fast Processing: Oil-coated surface allows immediate feeding into stamping presses without additional lubrication, saving pre-treatment time.
- Global Logistics: Packed with export-grade moisture-proof wrapping and wooden crates, shipped via Qingdao port to North America, Europe, Southeast Asia, and more.
At Hemaokang Steel, we combine advanced production lines with rigorous quality control. Our team of 51–100 skilled professionals ensures every coil is inspected for thickness, coating weight, and mechanical properties before dispatch. With an annual export value exceeding US$50 million, we have built long-term partnerships with clients across North America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and domestic markets. Our ISO9001-certified processes guarantee traceability and consistent quality.
We invite you to experience the reliability of our DX56D+Z galvanized steel coil. Whether you are a Tier 1 automotive supplier or a precision stamping workshop, our product can streamline your deep drawing operations and enhance final part quality. Contact our sales team today for detailed mill certificates, samples, or a customized quotation. Trust Hemaokang Steel – where performance meets precision, and service meets integrity.
Frequently Asked Questions
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Q: What is the difference between DX56D+Z and regular galvanized steel?
A: DX56D+Z is a special grade designed for very deep drawing applications. It has lower yield strength and higher elongation than commercial-quality grades, making it ideal for complex automotive panels. -
Q: Can this coil be welded after oil coating?
A: Yes, the oil film is easily removed with standard degreasing agents, and the zinc coating provides good weldability. For best results, we recommend using a minimal oil coating (customizable upon request). -
Q: What coating weight options are available?
A: We offer Z100, Z180, Z275, and Z350 per ASTM A653. The most common for deep drawing is Z275, which balances corrosion protection and formability. -
Q: Do you provide cut-to-length sheets or slitted coils?
A: Yes, we offer slit coils and cut-to-length blanks as value-added services. Please specify your exact dimensions when ordering. -
Q: Is the steel suitable for exposed automotive outer panels?
A: Absolutely. The DX56D+Z grade coupled with our surface quality control ensures a smooth, defect-free surface that can be painted to Class A standards. -
Q: What is the typical lead time for a standard order?
A: For standard thicknesses and widths within the range, lead time is 2–3 weeks from receipt of deposit. Rush orders are available subject to mill schedule. -
Q: Can I get a sample coil before placing a bulk order?
A: Yes, we provide small sample coils (up to 200 kg) for trial purposes. A nominal shipping cost applies, which is refundable on first confirmed order. -
Q: Does your company have any environmental certifications?
A: We comply with all applicable environmental regulations in China and hold ISO14001 certification (available upon request). Our production process recycles zinc and steel scrap responsibly.
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