Shandong Decho Building Materials Technology Co., Ltd |
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AFP (anti-finger print) Galvalume steel coils/sheets/strips ASTM A792M 0.80mm* 1000mm AZ75
The coating consists of 55% aluminum, 43.5% zinc, and 1.5% silicon in weight ratio, respectively. The production process of aluminum zinc steel sheet is similar to that of galvanized steel plate and aluminum plated plate, and it is a continuous melting coating process. 55% aluminum zinc alloy coated aluminum zinc steel plate has superior corrosion resistance compared to galvanized steel plate of the same thickness when exposed to the same environment on both sides. 55% aluminum zinc alloy coated aluminum zinc steel ( 55% Alu-zinc Steel) plate not only has good corrosion resistance, but also color coated products have excellent adhesion and flexibility.
1. Specification
GL is more popular in recent years, especially popular due to the
merits of PPGL, which suitable for the enviroment there well.
Firstly, the corrosive resistance of the hot-dip alu-zinc coated
steel sheet is twice to fifth times as mush as that of the hot-dip
zinc- coated base metal.
Secondly, it can satisfy the processing requirements of rolling,
coiling and others processes alike.
Thirdly, the color won’t change while continuously or
intermittently working with an ambient temperature up to
316℃.Neither serious oxygenation nor oxide scale might appear while
continuously or intermittently working with an ambient temperature
up to 490℃.
Thirdly, the heat and the light reflected are respectively twice as
much as those of hot-dip zinc steel sheet, and its reflectivity is
more than 0.75, exceeding 0.65 (required by the EPA Energy Star
Standard), which is an ideal construction material of saving
energy.
2. Mechanical properties of hot dip Al-Zn base
Mechanical properties of steel sheet and strip should be in
conformity with the stipulations of following chart.
Because the effects of aging, mechanical properties of the steel
strip shall deteriorate with storage time passing, E.g. yield
strength and tensile strength will rise, elongation after fracture
decreases, formability deteriorates etc. it is suggested to use the
material as soon as possible.
For products with nominal thickness greater than 0.50mm, but less than or equal to 0.70mm, the elongation after fracture is allowed to decrease by 2 units. For products with nominal thickness not greater than 0.50mm, the elongation after fracture is allowed to decrease by 4 units.
3. Our Advantage: Strictly Quality Control of Production
Inspection for quality of surface coating on the line supervises and controls the apperance effectively to ensure the quality of coating.
The testing for physical performance follow the principle of one coil, one sample. In order to have traceability of every coil’s quality, we test T bend, impact, cupping, MEK, gloss, chromatism to ensure quality. Ultraviolet aging test and Salt spraying test apply to special requirement products.
4. Applications
1) Construction:
Outside: workshop, agricultural warehouse, corrugated roof, wall,
retailer booth, roller shutter door, etc.
Inside: door, doorcase, ceiling, elevator, stairway, vent gutter,
etc.
2) Electrial Appliance: refrigerator, washer, switch cabinet, desk,
bed, micro-wave oven, bread maker
3) Furniture: central heating slice, lampshade, chifforobe, desk,
bed, locker, boofshelf
4) Others: writing panel, garbage can, billboard, etc.
5. Packing
Standard Seaworthy Export packing:peripheral anti-rust board, inside anti-rust paper, plastic cannula, latitude strapping, radial srapping, etc.
6. Our service:
1) Free sample offered;
2) Flexible payment term with L/C at sight,TT ,ect;
3) Big quantity supply and short delivery time;
4) Stable and reliable quality
5) Long term after-sale service.
Thickness | 0.12- 2.5MM |
Width | 600 - 1250MM |
Length | As require |
Zinc Coating | Z30 - 150g/㎡ |
ID of Coil | 508/610MM |
Surface Structure | Regular spangle,Minimum spangle, Zero spangle, Big spangle |
Color | Blue,Green,Golden,Yellow |
HRB | Soft Hard (<60),Medium Hard (60-85), Full Hard (85-95) |
Surface Treatment | Oiled (O), Chromium (C),Phosphating (P), Spinpass Resistant to Fingerprints(AFP) |
Standard Seaworthy Export Packing | Dust-proof kraft sheet, iron packing, Angle protective, packing belt |
Mechanical properties of galvanized steel | |||
Usage | Grade | Yield strength(MPa) | Tensile strength(MPa) |
Punching galvnaized steel | DC51D+Z | - | 270-500 |
DC52D+Z | 140-300 | 270-420 | |
DC53D+Z | 140-260 | 270-380 | |
Structure galvanized steel | S280GD+Z | ≥280 | ≥360 |
S350GD+Z | ≥350 | ≥420 | |
S550GD+Z | ≥550 | ≥560 |