Overview

Best Quality Galvanized Steel Sheet DX52D+Z is a high-performance product designed for applications requiring superior corrosion resistance, formability, and surface quality. Conforming to EN 10142 and EN 10143 standards, the "DX52D" designation indicates excellent cold-formability, while "+Z" specifies a zinc coating (minimum 180 g/m² on both sides) applied via continuous hot-dip galvanization. These sheets feature a smooth, spangle-free surface or optional spangled finish, ideal for both functional and aesthetic uses in construction, appliances, and transportation.

The steel substrate (low-carbon DX51D+Z base) undergoes rigorous cold rolling and annealing to achieve a soft, ductile state, allowing for severe forming operations like deep drawing and stamping without coating cracking. The zinc layer provides long-term protection against atmospheric corrosion, with a service life of 20–30 years in urban environments and up to 50 years in rural areas when properly maintained.

Advantages

Superior Formability (DX52D): Designed for extreme cold-forming, such as automotive body panels and appliance components requiring complex shapes.

Heavy-Duty Zinc Coating (+Z): Minimum 180 g/m² coating (up to 275 g/m² available) offers enhanced protection compared to standard galvanized sheets, suitable for high-humidity or mildly corrosive environments.

Excellent Surface Finish: Spangle-free option provides a uniform, paintable surface for architectural applications, while spangled sheets offer better coating adhesion for non-painted uses.

Precision Dimensional Control: Thickness tolerances within ±0.001 inches and flatness ensured by tension-leveling, critical for automated manufacturing processes.

Compliance with European Standards: Meets EN 10142 (cold-rolled) and EN 10143 (hot-rolled) for chemical composition, coating weight, and bend test requirements, ensuring reliability across the EU and global markets.

Application

Galvanized Steel Sheet DX52D+Z is used in:

Automotive Body Panels: For doors, hoods, and fenders, leveraging its formability and corrosion resistance in a cost-effective manner.

Appliance Manufacturing: As inner liners for refrigerators, washing machine drums, and air conditioner casings, where moisture resistance and deep-drawing capability are essential.

Construction: In roofing tiles, wall cladding, and light-gauge steel framing, especially in coastal areas or industrial zones with high air pollution.

Metal Furniture: For office desks, cabinets, and shelving that require a balance of durability, formability, and a clean, paintable surface.

General Fabrication: For decorative metalwork, signage, and outdoor equipment like bike racks and street furniture, benefiting from low maintenance and long life.

FAQ

Q: What does "DX52D+Z" signify in the grade designation?

A: "DX" denotes hot-dip galvanized, "52" indicates formability class (52 = severe cold-forming), "D" means normal spangle, and "+Z" specifies a zinc coating (e.g., Z180 for 180 g/m²).

Q: Can DX52D+Z sheets be used for outdoor applications without painting?

A: Yes, the zinc coating provides adequate protection for moderate environments. For harsh conditions (coastal, industrial), a topcoat or pre-painted version is recommended.

Q: How does the coating weight affect formability?

A: Higher coating weights (e.g., 275 g/m²) slightly reduce formability due to thicker zinc layers, but DX52D+Z is optimized to maintain ductility even with heavy coatings.

Q: What is the difference between DX52D and DX51D galvanized sheets?

A: DX52D offers better formability for severe cold-forming (e.g., deep drawing), while DX51D is suitable for general bending and stamping, with slightly lower elongation.