Q355 prepainted galvanized steel coil

Q355 Prepainted Galvanized Steel Coil

Product Overview

Q355 prepainted galvanized steel coil is a steel product made from Q355 hot-rolled steel base with a zinc coating and a prepainted top layer. The zinc provides corrosion resistance, while the paint offers additional protection and aesthetic options. This coil is suitable for applications requiring durability and surface finish.

Key Specifications

• Base Steel: Q355 hot-rolled steel, yield strength 355 MPa.
• Thickness: 0.15 mm to 3.0 mm.
• Width: 600 mm to 1500 mm.
• Coil Weight: Up to 10 tons per coil.
• Zinc Coating: 60 g/m² to 120 g/m² (double-sided).
• Paint Type: Polyester or PVDF, top coat thickness 15-25 μm, back coat 5-10 μm.
• Colors: Standard RAL colors available, customizable.
• Surface Treatment: Passivated or oiled to prevent white rust.

Standards and Compliance

This product complies with ASTM A653, EN 10346, and GB/T 12754 standards. It meets requirements for formability and adhesion in coated steel applications.

Applications

• Construction: Roofing, wall panels, and structural components.
• Automotive: Body panels and trim.
• Appliances: Housings for refrigerators and washing machines.
• General Manufacturing: Furniture and HVAC ducts.

Technical Features

• Corrosion Resistance: Zinc layer protects against rust; paint enhances weather resistance.
• Formability: Good bending and welding properties due to Q355 base.
• Durability: Paint system withstands up to 10 years of outdoor exposure.
• Environmental: Recyclable steel with low VOC paints.

Asia Metal supports customization of dimensions, specifications, and surface finishes to meet specific project requirements. Contact us for tailored solutions and quotations.