Product name: Hot Dip Galvalume Steel Coil/Sheet/Strip/Roll, Aluzinc Steel Coil，GL Steel Coil，
Standard: EN, DIN, JIS, ASTM
Thickness & Tolerance: 0.12-6.00 mm (+0/-0.001mm), or customized as required
Width & Tolerance: 600-1500 mm (+/-0.06mm), or customized as required
Al-Zn coating: 30-275g/m2 or customized
Spangle: Normal (non-skinpassed) spangle, Skinpassed spangle, Regular spangle, Minimized spangle
Surface Treatment: Chromate passivated, Non-chromate passivated, Chromate passivated + oiling, Non-chromate passivated+oiling, Anti-fingerprint, Non-chromate anti-fingerprint treatment, Oiling, No treatment
Steel Grade: DC51D, DC52D, DC54D, DC53D, S250GD, S300GD, S350GD, S450GD, S550GD,etc.
Shanghai AIYIA Industrial Co., Ltd. exports high-quality galvalume steel coil/sheet to all over the world. Our products have won high praise from customers for their excellent quality.
|Coil weight||3-20 metric ton per coil|
|Coil diameter||508mm / 610mm|
|Monthly production||5000-8000 tons|
|MOQ(Minimum order quantity)||20 tons|
|Delivery time||Stock: 7days|
futures: 15-35 days
|Packaging||water proof paper is inner packing,galvanized steel or coated steel sheet is outer packing , side guard plate,then wrapped by seven steel belt.or according to customer’s requirement|
North America, etc
Galvalume steel is also called Aluminum-Zinc Alloy Coated Steel, Zincalume steel, aluminized zinc steel (aluzinc steel), SGLC, The galvalume metal is composed of 55% aluminium, 43.4% zinc and 1.6% silicon solidified at 600 ~C. Its whole structure consists of aluminium-iron-silicon-zinc, forming a compact quaternary crystal alloy. The surface of the galvalume steel sheet is characterized by smooth, flat and gorgeous stars, and its base color is silver white. The special coating structure makes it have excellent corrosion resistance. The normal service life of galvalume steel sheet is up to 25a, and its heat resistance is good. It can be used in high temperature environment at 315 C. The adhesion between coating and paint film is good, and it has good processing performance. It can be punched, sheared and welded. The surface conductivity is very good.
Galvalume Steel Coil Detailed Picture
Layer Schematic of Galvalume Steel
Production Process of Hot-dip Al-Zn Coating
Characteristics of Galvalume Steel
It can satisfy the processing requirements of rolling, coiling and others processes alike.
Common HDG steel plate normally works under 230℃, and has its color changed at 250℃, however, Galvalume steel plate cansustain the environment at 315℃ for long time.
Reflection ability of heat and light is twice as much as those ofhot-dip zinc steel sheet, and its reflectivity is more than 0.70, exceeding 0.65 (required by the EPA Energy Star Standard), which is an ideal construction materials of saving energy.
4.Resistance to corrosion
Al-Zn coated steel sheet has better performance in corrosion resistance than GI sheet of the same thickness and its service life is 2-6 times longer than general GI sheet.
Outer clad sheets for washing machine, refrigerator, television, air conditioner and ventilation system, explosion-proof strip, solar water heater and appliance parts.
Electric control cabinet, industrial refrigeration equipment, automatic vending machine.
Roofs and outside walls of civilian and industrial buildings, garage doors, fencings and window blinds.
Piggery, chicken coop, granary, greenhouse pipes, etc.
Muffler, heat shields of exhaust pipe and catalytic converter, auto parts & accessories under the frame, signboard in highway.
Why Choose Us?
Two galvalume steel coil production lines, the equipment level is at the forefront in China, and the plant area is 30,000 square meters.
The average monthly output of galvalume steel coils is around 5000-8000 tons, which can meet the large demand of customers. At the same time a large number of stocks.
We have professional sales staff in Spanish, Portuguese, French, Arabic, and Russian for different markets.
Precautions While Using
1.The Galvalume steel should be kept away from the alkaline medium.
2.The roof made out of the Galvalume steel requires a slope to help drainage and to alleviate corrosion.
3.The Galvalume steel sheet should have no direct contact with foundation concrete, wet wood, steel, lead and graphite.
4.Use trimmed plate rather than the plate to be cut plate at job site.
5.While the steel plate is piled and processed, its finger-print proof film should be protected from getting black due to dampness and high temperature.
6.If the Galvalume steel is used for foaming and bonding application, then, small-lot test is needed for the initial use, in order
to prevent the poor bonding.
7.If the Galvalume steel need to be cleaned,we do not suggest to be cleaned with ethanol. If must to be used, small-lot is needed for the initial use, in order to prevent the damage of the coating.
The difference between galvanized steel and galvalume steel
1. Resistance to atmospheric corrosion
GL(galvalume) steel sheet is excellent, while GI(galvanized) steel sheet is good.
2. High temperature oxidation resistance
GL sheet is excellent, and GI is good.
3. Processing performance
GL sheet behaves well, and GI behaves well.
GL sheet behaves poorly, while GI behaves better.
5. Coating property
GL sheet behaves better, and GI behaves better.
6. Incision protection
GL sheet behaves poorly, while GI behaves better.
7. Cathodic protection
GL sheet is poor, while GI is strong.
Quality and Commitment
1.The powdering degree of the product will not exceed 6 grades in 10 years, according to ASTM regulations.
2.No visible cracks after processing and forming within 5 years.
3.No corrosion perforation in 15 years.
Normal processing and use conditions are as follows:
1.Normal climatic conditions (extreme cold, extreme heat, high salinity, except strong acid environment).
2.Zinc coating thickness ≥150g / m2.
3.Avoid contact with special chemicals.