DX51D+AZ Galvalume Steel Coil with >75% Solar Reflectivity for Building Envelope

Product Details:

Place of Origin: China
Brand Name: HuiYi-GL
Certification: ASTM, EN
Model Number: DX51D+AZ/S350GD+AZ

Payment & Shipping Terms:

Minimum Order Quantity: 25MT
Price: Negotiation
Packaging Details: VCI kraft paper + 0.3mm PE film + Steel-strapped pallets with edge guards
Delivery Time: 15-30 Days
Payment Terms: T/T,L/C,D/P
Supply Ability: 5000MT/Month
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Detail Information

Product Name: Galvalume Steel Coil Material: High-Strength Steel Coil
Size: (0.12-3.0)mm × (600-1500)mm Tensile Strength: 270-550 MPa
Yield Strength: 140-340 MPa Salt Spray Resistance: 1,000hrs (ASTM B117)
Heat Reflectivity: >75% Heat Resistance:: Up To 315°C (600°F)
Highlight:

55% Aluminum-Zinc Coated Steel Coil

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Solar Reflectivity >75% Galvalume Steel Coil

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Heat Resistance 315°C Aluzinc Steel Coil

Product Description

DX51D+AZ Galvalume Steel Coil with >75% Solar Reflectivity for Building Envelope
Our DX51D+AZ Galvalume Steel Coil is engineered for building envelope systems, combining long-term durability with exceptional energy efficiency. Its core is a hot-dip 55% aluminum-zinc-silicon coating (55% Al, 43.4% Zn, 1.6% Si), which provides 2–6 times better corrosion resistance than standard galvanized steel and a proven service life of 20–25 years. A key advantage is its >75% solar radiant heat reflectivity – nearly double that of galvanized steel – significantly reducing building cooling costs while withstanding temperatures up to 315°C (600°F) without discoloration. Certified to ASTM A792/A792M, this coil delivers reliable, high-performance solutions for demanding architectural applications worldwide.
DX51D+AZ Galvalume Steel Coil with >75% Solar Reflectivity for Building Envelope 0 
Technical Parameters
Parameter Specification
Base Material High-Strength Steel Coil
Thickness 0.12mm - 3.0mm(±0.02mm)
Width 600mm - 1,500mm
Coating Weight AZ100-AZ275
Heat Reflectivity >75% (approx. 2x galvanized steel)
Aluminum Content 55%
Surface Finish Chromated/Oiled, Anti-Fingerprint
Spangle Type Minimal Spangle
Coil ID 508mm/610mm
Coil Weight 3-12 Tons
 
Applications
  • Roofing & Wall Cladding: Commercial, industrial, and agricultural buildings
  • Structural Components: Light gauge steel frames, purlins, and trusses
  • Architectural Elements: Facades, rain gutters, downpipes
  • Garage Doors & Security Fencing
DX51D+AZ Galvalume Steel Coil with >75% Solar Reflectivity for Building Envelope 1 
Customization Options
  • Coating Weight: Tailored within the AZ100-AZ275 range
  • Dimensions: Custom thickness, width, and length cuts
  • Surface Treatment: Oiled, Chromated, or Anti-Fingerprint
  • Spangle Type: Regular, minimized, or zero spangle
  • MOQ: Competitive Minimum Order Quantity, with samples available

 

Packing and Shipping
Triple-Shield Packaging: VCI anti-rust kraft paper inner layer, 0.3mm PE waterproof film with moisture indicators, steel-strapped pallets + edge guards (max. 8-ton coils).
Global Logistics: FOB/CIF from Chinese ports; 15-20 day delivery for Asia, 30-45 days globally.
Quality Assurance: Pre-shipment inspection and moisture indicators for transit protection.
DX51D+AZ Galvalume Steel Coil with >75% Solar Reflectivity for Building Envelope 2 
FAQ
Q: What is the typical lifespan of this product in a building envelope application?
A: Its high solar reflectance (over 75%) means it bounces back a significant portion of the sun's radiant heat. This helps in reducing heat absorption through the building envelope, leading to lower cooling loads and energy savings, especially in hot climates.
Q: What's the payment term for Galvalume Steel Coil?
A: 30-50% TT in advance (based on your qty), 70% balance against copy B/L in 7 workdays.
Q: When will you send BL copy?
A: In 3-5 workdays after shipment date.
Q: When will you send original Documents?
A: In 3-5 workdays when we get the balance.
Q: What is the lead time for samples?
A: Samples are available in 7-10 days after detailed requirements confirmation.
Q: What is your working time?
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.

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