Product Focus: Surface‑Critical & Forming Applications
When your final product requires a flawless painted finish or complex deep drawing, CNB’s zero‑spangle galvanized steel in grades DX53D+Z and DX54D+Z is the answer. Through precise control of the zinc bath chemistry and cooling rate, we eliminate visible zinc crystals, producing a uniform, matte surface that hides no pattern under thin powder coatings or wet paints. This material is the substrate of choice for electrical cabinets, office furniture, appliance housings, and automotive interior panels.

Why This Product Excels

• Superior Paint Finish: Zero spangle prevents ghosting of zinc patterns through the paint film, achieving a Class A surface with standard polyester or epoxy coatings.

• Excellent Drawability: With r‑values and n‑values optimized for deep drawing, DX54D+Z can form refrigerator liners, deep sinks, and complex box shapes without cracking.

• Flatness & Shape: Skin‑passed and tension‑leveled to guarantee minimal camber and flatness for automated stamping lines.

• Chemical Resistance: Chromate‑free passivation or anti‑fingerprint treatments provide temporary corrosion protection and enhance paint adhesion without hexavalent chromium.

Typical Specifications

• Thickness: 0.25mm – 2.5mm

• Width: 800mm – 1250mm (914mm, 1000mm, 1219mm)

• Coating: Z60–Z180 for indoor applications; Z275 for outdoor enclosures

• Surface: Zero spangle, anti‑fingerprint, oiled