Base Metal: Hot-dipped Galvalume Steel Coil (GL)

Introduce Li Cheung Steel is the global steel manufacturer and the whole-process service provider for PPGI /PPGL Cold Rolled Galvanized Galvalume Steel consumption fields. Its main products include steel coils, plates, Corrugated sheets etc, covering thousands of standards and grades. With over 30...

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Product Details

Introduce

Li Cheung Steel is the global steel manufacturer and the whole-process service provider for PPGI /PPGL Cold Rolled Galvanized Galvalume Steel consumption fields. Its main products include steel coils, plates, Corrugated sheets etc, covering thousands of standards and grades. With over 30 years steel supplying experience in energy, transportation and storage field. We have become a Factory Direct Excellent supplier from China and have a fine fame in this field. As a professional factory best quality and most competitive price ,our products are sold well in the world, such as, Europe, Asia, Africa,South America and Worldwide. Welcome purchasers from all walks of life to visiting our factory.

Our factory can produce the specifications of the products: in width from 1000mm to 1250mm and can also specialize in 760mm, 914mm, 1040mm, 1100mm, 1219mm, 1250mm in width. In thickness, from 0.14mm to 2.0mm of GI, GL; from 0.14mm to 1.5mm of PPGI. Meantime we can supply any color product of RAL.

We have a machining center and can supply Longitudinal Shear, Transverse Shear, Separation and meanwhile Roofing sheets.

GL Steel

Key Specifications/Special Features:

Standards: GL-JIS G3322 CGLCC (equivalent to AS 1397 G2+AZ)
Zinc coating: Az40-Az150
Thickness: 0.21mm-1.2mm
Width: 600mm-1250mm*C
Length: according to customer’s requirements
Coil inner diameter: 508/610mm
Color: RAL color or customized as the sample
Type of top coatings:
Silicone modified polyester
High-durability polyurethane
Polyvinylidene fluoride
Coating type: top side two coats, bottom side one coat
Coating surface structure of hot-dipped galvanized substrate: mini spangle, zero spangle
Packaging details: fully seaworthy export packing
Payment terms: T/T and L/C
Price terms: FOB, CFR and CIF

Galvalume Steel Description:

Galvalume coating, applied by the continuous hot-dip process, is an alloy consisting of approximately 55% aluminium and 45% zinc by weight.

Excellent film adhesion

The coating layer is manufactured with fine porous surfaces so as to be high in surface vitality and be very excellent in film adhesion without phosphate treatment.

Excellent corrosion resistance

The surface layer is finer and harder than electrically galvanized steel sheets by using a hot-dip coating method so as to be excellent in white rust resistance at constant temperature and humidity as well as in red rust resistance. Especially, the adhesion with paint is good so as to be very excellent in paint corrosion resistance.

Excellent powdering resistance

This is manufactured in a short time heating and long time heat treatment method so as to be very excellent in powdering resistance.

Diverse mechanical property and high formability

The passing length of heating, crack and cooling zone of furnace before coating is made longer than the existing equipment so as to secure diverse mechanical property and high formability so that diverse desires of consumers can be satisfied.

Beautiful appearance

The flatness equal to the cold rolled steel sheet was realized by completely removing unevenness in the surface layer occurring during iron-zinc alloy using a temper rolling mill of high pressure load ratio after coating. Besides, this has no spangle and has a white gray color similar to EGI so as to be very beautiful in appearance

Corrosion resistance

The improved corrosion resistance of 55% AI-Zn alloy-coated steel coils is derived from the unique combination of the barrier protection of the aluminum and the sacrificial protection of the zinc. The formation of an insoluble aluminum oxide layer provides the barrier protection while the zinc provides a sacrificial protection at cut edges, scratches and areas of coating damage. Outdoor exposure testing of 55% AI-Zn alloy-coated steel onus has been conducted for over 20 years in various atmospheric environments. This testing also demonstrated a superior cut edge protection of 55% AI-Zn alloy-coated steel sheet than the galvanized steel sheet.

Heat resistance

Similar to the aluminum coated steel sheet that can resist high temperature oxidation, 55% AI-Zn alloy-coated steel sheet demonstrates better resistance to high temperature than the galvanized steel sheet.Yogic 55% AI-Zn alloy-coated steel sheet can be used in temperatures up to 315ºC.

Heat transmission and reflectivity

55% AI-Zn alloy-coated steel coil has a high reflectivity value making it an effective barrier against heat.

Surface Treatment:

Chromatic treatment,Oiled or Anti-finger print normal-coated, embossed, printed

Surface Finished/REGULAR SPANGLE:

Regular spangle is also called normal spangle which is naturally formed without any additional treatment during galvanizing.

MINI SPANGLE: The spangle is restrained and formed as mini spangle by reducing the lead content in the zinc liquid or by blowing the zinc powder from the equipment installed on the zinc pot.

EXTRA SMOOTH:

The mini spangle is further skin-passed to produce the extra smooth surface

Application:

1.BUILDING & CONSTRUCTION

Floor decks, ceilings, verandas, rolling doors, warehouse, partitions, sheds, gutters, wall, underground piping, sashes, beams, fences, scaffolding, indoor decorations, ducts, ventilating pipes, steel frames and cable trays.

2.ELECTRICAL APPLIANCES

Freezers, video recorder cases, motor cases, lighting fittings, water heaters, washing machines, refrigerators, stoves, air conditioners, dehumidifiers, fluorescent light housings, electrical heaters, toasters, microwave oven enclosures and switch boxes.

3.TRANSPORTATION

Containers, under body panels, bus & truck body panels, fuel tanks, noise screens, highway signs, air cleaners, conveyor systems and guard rails.

4.AGRICULTURAL EQUIPMENT

Barns, drying machines, animal houses, hoppers, irrigation systems, greenhouses, water tanks, sheds, silos, agricultural implements and feeders.

5.FURNITURE & OTHERS

Vending machines, drums, cans, pails, sauna inner parts, chimney pipes, entertainment machines, solar collectors, office equipment, steel furniture, tool boxes, garages and waste bins.

6.COMPUTER’S APPLIANCES

Computer shells and communication instruments。