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Fireproof Zn-Al-Mg275 Coated C-Channel & Z-Channel Steel with High Durability Polyester Finish for Steel Structure Building
Fireproof Zn-Al-Mg275 Coated C-Channel & Z-Channel Steel with High Durability Polyester Finish for Steel Structure Building
Fireproof Zn-Al-Mg275 Coated C-Channel & Z-Channel Steel with High Durability Polyester Finish for Steel Structure Building
Fireproof Zn-Al-Mg275 Coated C-Channel & Z-Channel Steel with High Durability Polyester Finish for Steel Structure Building
Fireproof Zn-Al-Mg275 Coated C-Channel & Z-Channel Steel with High Durability Polyester Finish for Steel Structure Building
Fireproof Zn-Al-Mg275 Coated C-Channel & Z-Channel Steel with High Durability Polyester Finish for Steel Structure Building
Fireproof Zn-Al-Mg275 Coated C-Channel & Z-Channel Steel with High Durability Polyester Finish for Steel Structure Building
Fireproof Zn-Al-Mg275 Coated C-Channel & Z-Channel Steel with High Durability Polyester Finish for Steel Structure Building
Fireproof Zn-Al-Mg275 Coated C-Channel & Z-Channel Steel with High Durability Polyester Finish for Steel Structure Building
Fireproof Zn-Al-Mg275 Coated C-Channel & Z-Channel Steel with High Durability Polyester Finish for Steel Structure Building
Specifications
Brand Name :
GNEE
Certification :
SGS
Place of Origin :
Henan
Supply Ability :
10000 Ton/Tons per Month
Packaging Details :
Standard Sea Worthy Package
Description
Fireproof Perforated C-Channel & Z-Channel Steel for Steel Structure Building
Zn-Al-Mg275 Coated Steel Overview

Zn-Al-Mg275 HDP Steel combines triple-layer Zn-(2-11%)Al-(1.5-3%)Mg alloy coating (275g/m²) with 35μm High Durability Polyester (HDP) finish. Engineered for maximum solar reflectance and corrosion resistance in photovoltaic systems and industrial architecture.

Key Features
Superior Solar Reflectivity
  • Technology: 86.5% SRI (ASTM E1980) via light-reflective ceramic pigments
  • Energy Impact: Reduces rooftop temperature by 15-20°C, cutting cooling costs by 30%+
Extreme Corrosion Resistance
  • Coating Innovation: Zn-Al-Mg275 alloy + HDP topcoat forms self-healing barrier
  • Proven Durability: 12,000 hours salt spray test (ISO 9227) - survives C4 marine environments
Self-Cleaning Hydrophobic Surface
  • Functional Design: 25° water contact angle prevents dust accumulation
  • Low Maintenance: Maintains >85% reflectivity after 10 years (vs. 60% for standard panels)
Structural Strength & Lightweight
  • Material Advantage: Dx51d base (550MPa yield) at 1.0mm thickness - 30% lighter than concrete
  • Installation Efficiency: Enables 100m+ span roofing without supports
C&Z Channel Steel Specification Sheet
Standard ASTM, JIS, DIN EN, GB etc.
Material Grade Q235B, Q345B, S235JR/S235/S355JR/S355/SS440/SM400A/SM400B
Thickness 1.0-3.0 mm or as customer's request
Width C80 to C300, Z100 to Z300 or as customer's request
Length As customer's request, Less than 5.85m for 20ft Container, Less than 11.85m for 40ft Container
Materials Galvanized Zn 80g to Zn 275, if more, need customized
Technique Hot rolled/Cold rolled + Galvanized
Surface treatment Black, Galvanized, coated, painted or as your request
Packing 1. Big OD: in bulk
2. Small OD: packed by steel strips
3. Standard export package or as required
Advantage Small MOQ + Superior quality + Competitive price + Fast delivery
Application Industry, Construction, Decoration, Shipbuilding, Bridging, Automobile chassis, etc.
Fireproof Zn-Al-Mg275 Coated C-Channel & Z-Channel Steel with High Durability Polyester Finish for Steel Structure Building
Technical Specifications
Model NO. DX51D+ZM275
Certification ISO, RoHS, IBR
Surface Treatment Coated
Technique Cold Rolled
Application Construction, Household, Automobile, Photovoltaic
Edge Slit edge
Stock Stock
Thickness 0.15mm-6mm
Width 5mm-1600mm
Coil Weight 3-8mt
Coil ID 508/610mm
Coating 40-450G/M2
Delivery Time 3-15 days
Acceptable quotation terms FOB / CIF / CFR / EXW
Acceptable payment terms TT / LC
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Fireproof Zn-Al-Mg275 Coated C-Channel & Z-Channel Steel with High Durability Polyester Finish for Steel Structure Building

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Product Detail
Brand Name :
GNEE
Certification :
SGS
Place of Origin :
Henan
Supply Ability :
10000 Ton/Tons per Month
Packaging Details :
Standard Sea Worthy Package
Contact Supplier
Fireproof Zn-Al-Mg275 Coated C-Channel & Z-Channel Steel with High Durability Polyester Finish for Steel Structure Building
Fireproof Zn-Al-Mg275 Coated C-Channel & Z-Channel Steel with High Durability Polyester Finish for Steel Structure Building
Fireproof Zn-Al-Mg275 Coated C-Channel & Z-Channel Steel with High Durability Polyester Finish for Steel Structure Building
Fireproof Zn-Al-Mg275 Coated C-Channel & Z-Channel Steel with High Durability Polyester Finish for Steel Structure Building
Fireproof Zn-Al-Mg275 Coated C-Channel & Z-Channel Steel with High Durability Polyester Finish for Steel Structure Building

Gnee Steel (tianjin) Co., Ltd.

Verified Supplier
6 Years
henan, anyang
Since 2008
Business Type :
Manufacturer, Trading Company
Main Products :
Shipbuilding Steel Plate, Pressure Vessel Steel Plate, Stainless Steel Plate Sheet
Total Annual :
3000000-3500000
Employee Number :
100~200
Certification Level :
Verified Supplier
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