DX53D galvanized steel coils/sheets are a high-grade metal material specifically designed for deep drawing and complex cold forming processes. With its exceptional ductility and mechanical properties, it effectively prevents zinc plating or substrate breakage during deep drawing, bending, and shearing. Combined with customized anti-corrosion passivation treatment, DX53D is an ideal material choice for harsh natural environments such as high humidity and high salinity.
| Category | Specification Item | Details |
| Material & Dimensions | Standard | EN 10346 |
| Material Grade | DX53D (Deep Drawing Quality) | |
| Thickness | 0.20 mm – 5.0 mm (High precision customization available) | |
| Width | 600 mm – 1500 mm | |
| Dimensions (Coil / Sheet) |
Coil: ID 508mm (20″) / 610mm (24″), OD unconstrained 1mm Aluminium Sheet
Sheet: Customizable lengths (e.g., 2000mm, 2440mm, 3000mm) |
|
| Coating & Surface | Processing Technology | Continuous Hot-Dip Galvanizing (HDG) |
| Zinc Coating Weight | Z30 – Z275 g/m² (Heavy coating optimized for monsoon/high-humidity climates) | |
| Spangle Finish | Zero Spangle, Minimized Spangle, Regular Spangle | |
| Surface Treatment | Eco-friendly Chromium-free Passivation, Chromated, Anti-fingerprint (AFP), Oiled / Unoiled | |
| Mechanical Properties | Yield Strength (Re) | 140 – 240 MPa |
| Tensile Strength (Rm) | 270 – 350 MPa | |
| Elongation (A80mm) | ≥ 24% (Engineered for excellent ductility) | |
| Commercial Terms | MOQ | 18 Metric Tons per specification |
| Packaging | Premium Seaworthy Export Packaging (Waterproof kraft paper + galvanized steel jacket + heavy-duty steel strapping) |
Exceptional Deep Drawability (Zero-Defect Forming)
Engineered with superior elongation (≥24%), a high plastic strain ratio (r-value ≥1.7), and an optimized strain-hardening exponent (n-value). This allows BOMIS DX53D to flawlessly execute intense deep-drawing, severe stretching, and complex bulging operations. The result? Smooth, precise components with absolutely zero risk of micro-cracking or surface degradation during aggressive cold forming.
Unwavering Batch-to-Batch Consistency
In modern manufacturing, unpredictability is costly. Backed by our stringent quality control and advanced continuous annealing processes, every DX53D coil delivers highly uniform and stable mechanical properties. This predictable consistency minimizes machine downtime and eliminates constant recalibration, making it the ultimate choice for high-speed, large-scale automated stamping lines.
Heavy-Duty Corrosion Protection
Beyond structural integrity, BOMIS DX53D features a densely bonded zinc coating that provides robust sacrificial anodic (cathodic) protection. Specifically optimized to combat the harsh realities of tropical monsoons, coastal humidity, and aggressive industrial environments, this resilient barrier prevents oxidation at the substrate level, drastically extending the service life of your final products.
White Goods & Home Appliances
Applications: Washing machine chassis and base panels, refrigerator door panels, and air conditioner outdoor unit housings.
Why DX53D? The flawless deep-drawing properties allow for smooth, seamless curves and intricate structural designs without micro-cracking. Furthermore, its robust zinc coating ensures long-lasting rust protection even in high-moisture environments like laundry rooms or outdoor climates.
Automotive & Transportation Components
Applications: Seat frames, oil pans, fuel tank sub-assemblies, and complex inner structural brackets.
Why DX53D? Automotive manufacturing demands absolute precision and safety. DX53D handles intense stamping and extreme deformation with ease, delivering the perfect balance of ductility and structural integrity required for modern, high-volume automotive production lines.
Construction & HVAC Infrastructure
Applications: Intricate roof flashing, specialized wall profiles, load-bearing floor decking, and complex HVAC ventilation ductwork.
Why DX53D? Engineered for climate resilience. When formed into complex architectural fittings, the zinc coating remains intact. It is the premier choice for infrastructure projects facing the severe weather, high humidity, and heavy rains typical of tropical and monsoon regions.
Industrial Equipment & Machinery
Applications: Heavy-duty machinery enclosures, stamped mounting brackets, electrical distribution cabinets, and equipment bases.
Why DX53D? Provides a rugged, protective shell that withstands aggressive industrial wear and tear. Its excellent machining tolerance ensures precise dimensional accuracy for complex electrical and mechanical housings.
Q: What are the main differences between DX51D and DX53D galvanized steel?
A: DX51D is a general commercial grade, mainly used for bending and simple forming; while DX53D is a deep drawing quality grade. It has higher ductility galvanized steel coils(elongation ≥24%) and plastic strain ratio (r value ≥1.7), capable of withstanding complex tensile and stamping processes without cracking.
Q: What protection recommendations does BOMIS provide for high humidity and monsoon climate regions?
A: For high humidity environments such as Southeast Asia and Africa, we strongly recommend choosing Z275 high-zinc coating, combined with environmentally friendly chromium-free passivation and fingerprint-resistant (AFP) treatment. This combination significantly enhances the chemical stability of the steel surface, effectively preventing the formation of “white rust” during transportation and storage.
Q: What are the different options for the zinc spangle on the surface of DX53D galvanized coils?
A: We offer Zero Spangle, Minimized Spangle, and Regular Spangle. Zero Spangle is the best choice if you require subsequent painting or extremely high surface smoothness (such as for appliance panels).
Q: How does your packaging ensure rust prevention during sea freight?
A: We use high-quality export-grade packaging: an inner layer of rust-proof and waterproof paper, a middle layer of metal corner protectors, an outer layer of galvanized steel sheet, and finally, reinforcement with high-strength steel straps. This triple protection effectively isolates the product from salt spray and moisture corrosion.
Q: What is the minimum order quantity (MOQ) and delivery time for DX53D?
A: The MOQ is typically 10 tons per specification. Delivery time is generally within 15-30 days after receiving prepayment or letter of credit, depending on order specifications and production schedule.
