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{"title":"Fireproof Zn-Al-Mg275 Coated C-Channel & Z-Channel Steel with High Durability","imgUrl":"https:\/\/img.chinax.com\/nimg\/1d\/1d\/703acf1075046773603737e657c0-200x200-1\/fireproof_zn_al_mg275_coated_c_channel_26amp_3b_z_channel_steel_with_high_durability.jpg","attrs":{"Brand Name":"GNEE","Certification":"SGS","Place of Origin":"Henan","Supply Ability":"10000 Ton\/Tons per Month"}}
{"title":"Hot Dipped Galvanized Steel Grating Stair Tread Grid with ASTM A36 Q235 and","imgUrl":"https:\/\/img.chinax.com\/nimg\/23\/50\/06bb429e3572299c5e92dcc492ea-200x200-1\/hot_dipped_galvanized_steel_grating_stair_tread_grid_with_astm_a36_q235_and_stainless_steel_304_options.jpg","attrs":{"Brand Name":"Gnee","Minimum Order Quantity":"2PCS","Supply Ability":"300000 Square Meter\/Square Meters per Month","Delivery Time":"Shipped in 20 days after payment"}}
{"title":"Hot Dipped Galvanized Steel Grating Heavy Duty Metal Grid Grating Panels","imgUrl":"https:\/\/img.chinax.com\/nimg\/a4\/cb\/43826f549efd74d94de44a9ee60a-200x200-1\/hot_dipped_galvanized_steel_grating_heavy_duty_metal_grid_grating_panels_pressure_welded_and_locked_for_high_load_capacity.jpg","attrs":{"Brand Name":"Gnee","Minimum Order Quantity":"2PCS","Supply Ability":"300000 Square Meter\/Square Meters per Month","Delivery Time":"Shipped in 20 days after payment"}}
{"title":"Construction Use DX51d Steel Coil Galvanized 0.15mm Thick","imgUrl":"https:\/\/img.chinax.com\/nimg\/67\/f1\/a2abb91416030d45be0d1432ec05-200x200-1\/construction_use_dx51d_steel_coil_galvanized_0_15mm_thick.jpg","attrs":{"Brand Name":"Gnee","Model Number":"DX51d","Certification":"ISO9001","Place of Origin":"Henan"}}
{"title":"Hot Dipped Galvanized Steel Grating and Steel Structure Walkway Compliant with","imgUrl":"https:\/\/img.chinax.com\/nimg\/4f\/16\/538537ddd861c1ec4aeeb4414c11-200x200-1\/hot_dipped_galvanized_steel_grating_and_steel_structure_walkway_compliant_with_ansi_2fnaamm_mbg_531_2f532_2f533_en_10025_gb_2ft_70.jpg","attrs":{"Brand Name":"Gnee","Minimum Order Quantity":"2PCS","Supply Ability":"300000 Square Meter\/Square Meters per Month","Delivery Time":"Shipped in 20 days after payment"}}
{"title":"Aisi Standard Galvanized Rolled Coil 0.12-2.5mm","imgUrl":"https:\/\/img.chinax.com\/nimg\/38\/09\/48a550d045c6062fa6ddf734093b-200x200-1\/aisi_standard_galvanized_rolled_coil_0_12_2_5mm.jpg","attrs":{"Brand Name":"genn","Model Number":"Dx51D.Dx52D,Dx53D.DX54D.DX55D","Certification":"ISO","Place of Origin":"Henan"}}
{"title":"Customizable Styles Hot Dipped Galvanized Steel Grating Walkway Compliant with","imgUrl":"https:\/\/img.chinax.com\/nimg\/6e\/db\/ec5995513c473460dc084e04172a-200x200-1\/customizable_styles_hot_dipped_galvanized_steel_grating_walkway_compliant_with_is_3202_and_astm_a_123_standards.jpg","attrs":{"Brand Name":"Gnee","Minimum Order Quantity":"2PCS","Supply Ability":"300000 Square Meter\/Square Meters per Month","Delivery Time":"Shipped in 20 days after payment"}}
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
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.
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
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Trading Company
Year Established:
2008
Total Annual:
3000000-3500000
Employee Number:
100~200
Ecer Certification:
Verified Supplier
Gnee Steel Co.,Ltd (GNEE) is the affiliated company for ANGANG GROUP who are one large state-owned iron and steel group located in Henan, China.
GNEE are specialized in manufacturing and supplying large quantities Seamless steel pipes and Shipping-building plates, We are provide high quality steel ... Gnee Steel Co.,Ltd (GNEE) is the affiliated company for ANGANG GROUP who are one large state-owned iron and steel group located in Henan, China.
GNEE are specialized in manufacturing and supplying large quantities Seamless steel pipes and Shipping-building plates, We are provide high quality steel ...