DX51D Hot Dipped Galvanized Steel Coil Z100 Z275 Price DX52D Cold Rolled Galvalume Gi Coil G300 Zinc Coated For Roofing
The hot-dip pure zinc process can generate spangles of different sizes. The spangles affect the surface sensory, but do not affect the corrosion resistance.
|Product name||galvanized steel coil|
|Standard||ASTM A653,JIS G3321,GB/T2518,DX5ID|
|Technique||Cold rolled and Hot rolled|
|Spangle||Zero spangle,Mini spangle,Regular spangle,Big spangle|
|TSurface treatment||Chromed,skin,pass,oiled,unoiles,slightly oiled|
|Surface||Clean,blasting and painting according to customer requirement|
|Package||Standard export package(detail pictures is as follows)|
|Country of origin||China|
|Business type||Supplier and manufacture|
|Shipment||30-45days,according to vessel schedules|
Packaging: 3 layers of packing. Inside is craft paper, Middle is water plastic film and outside GI steel sheet to be covered by steel strips with lock, with inner coil sleeve.
Shipping:We have long-term cooperation with many experienced shipping companies and will find the most suitable mode of transportation for you.
A. High temperature resistance: Because of the special combination of steel plate substrate and coating structure, an iron-aluminum alloy is formed, which makes the aluminized plate have excellent high temperature resistance. High reflectivity can be guaranteed at 450 C. When the temperature is higher than 480 C, the appearance of the coating is grey. The protective layer against oxidation of steel sheet is still well preserved at 650 C without any falling off.
B. Heat Reflectivity: At 480 degrees Celsius, the aluminized sheet can reflect 80% of the heat input. Therefore, the aluminized sheet can be used as an efficient heat insulation barrier or a heat reflector in high temperature applications, which can rapidly increase the temperature in the furnace by effective heat reflection.
C. Mechanical Strength: At room temperature, the mechanical strength of aluminized sheet is the same as that of its base material. At the same temperature of 480 C, the strength of aluminized steel sheet is 10 times than that of aluminium sheet, so the thickness of steel sheet can be reduced by at least 30%.
D. Corrosion resistance: During hot dipping, molten aluminium reacts immediately with oxygen in the air to form an Al2O3 protective layer, which passivates the surface of steel plate immediately. The protective layer is very stable and insoluble in water. Even if the surface of the steel plate is scratched later, the protective layer has self-healing function. Therefore, the aluminized sheet has very strong corrosion resistance to chemical corrosion.
E. Ecological characteristics: Aluminum-Coated-Silicon Steel Sheet without chemical passivation has no effect on health, so it can be used in food processing. Testing reports from many professional groups confirm that it is environmentally friendly. Aluminum plated sheet can be recycled completely. Aluminum plated sheet can be comparable to stainless steel, but the price is only about one third of that of stainless steel. It is widely used in automobiles, motorcycle mufflers, exhaust pipes and fuel tanks. 2. Burning furnace, heat exchanger, dryer, air conditioner, etc. 3. Household water heaters, gas stoves, breadboxes, chimneys, microwave ovens, food processing machinery, electric ovens, cooking utensils. It can also be used for building covers, walls, roofs and other insulation components.
F. Others: Standard MAG and TIG welding can be used. It can be used for drawing, stamping, drawing and other forming processes. Coatings have durable gloss, better corrosion resistance and weathering resistance
The company implements international and domestic standard including API SPEC 5CT, API SPEC5L, ASTMA53, CB/T9711.1, GB/T9711.2, GB/T13793, SY/T5768 etc. The products which will satisfy the need of clients having different standard requirements.
The application of our products cover oil, natural gas, shipbuilding, chemical industries, environmental protection, boiler making, water conservancy, power, steel structural products, building, etc.
After the efforts of Gnee people, our products are sold overseas. So far, Gnee group invested more than 2 billion dollars into different behemoth steel company, own of their shares, including LAIGANG ,RIGANG, MAGANG, SHANGANG, ANGANG etc.Our main market distributes in Middle East, Africa, Southeast Asia as well as Oceania. And we are looking forward to doing business and making friends with clients all around the world.