Our Skin-Passed DX51D Galvalume Steel Coil delivers superior formability and enhanced corrosion resistance for construction applications. Featuring a hot-dip 55% Al-Zn coating (AZ100-AZ275), it provides 2-4 times longer service life than standard galvanized steel. The skin-passing process ensures a smooth, spangle-minimized surface for excellent paint adhesion and eliminates stretcher strains during fabrication. Compliant with ASTM A792/A792M, it is an ideal choice for structural and architectural projects.
Parameter | Specification |
---|---|
Grade/Standard | DX51D+AZ (ASTM A792/A792M) |
Thickness | 0.12mm - 4.0mm (±0.02mm) |
Width | 600mm - 1,500mm |
Zinc Coating | Z100 - Z275 (100-275 g/m²) |
Tensile Strength | 270 - 500 MPa |
Yield Strength | 245 - 455 MPa (Estimated based on common data) |
Elongation (A%) | 8% - 32% |
Surface Finish | Skin-Passed, Minimized Spangle, Chromated/Oiled |
Coil ID | 508mm or 610mm |
Coil Weight | 3-12 Tons |
Building Envelopes: Roofing and wall cladding systems for commercial, industrial, and agricultural buildings.
Structural Components: Light gauge steel frames, purlins, and trusses.
Architectural Elements: Facades, rain gutters, downpipes, and decorative panels.
Interior Applications: Ceiling panels, partition walls, and fire doors.
Zinc Coating: Custom aluminum-zinc coating weights within the AZ100–AZ275 range.
Dimensions: Custom thickness, width, and length cuts.
Surface Treatment: Oiled, Chromated, or Passivation treatment.
Spangle Type: Regular spangle, minimized spangle, or zero spangle.
MOQ: Competitive Minimum Order Quantity with samples available for quality verification.
Q: How do you control quality?
A: Mill Test Certification is supplied with shipment, Third Party Inspection is available.
Q: Why is skin-passing important?
A: Skin-passing (or temper rolling) improves surface flatness, controls yield point elongation to prevent stretcher strains during forming, and provides a superior surface for painting.
Q: Can you provide sample?
A: Small samples in store and can provide the samples for free.Customized samples will take about 5-7days.
A: Our online service time is Beijing time: 8:00-22:00. After 22:00, we will reply to your inquiry in the coming working day.