Aluminum Zinc Color Coated Steel Sheet from China

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Loading Port:
Shanghai
Payment Terms:
TT or LC
Min Order Qty:
5 m²
Supply Capability:
9000 m²/month

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Product Description:

No.

Parameter

Description

1.

Name

Aluminum-zinc-silicon coated sheet

2.

Substrate

Cold rolled steel coils

3.

Zinc-coating

40g - 200g/m2

4.

Painting thickness

Top side:17-25um Back side:5-8um

5.

Steel color

RAL color

6.

Steel thickness

0.12mm - 1.00mm

7.

Material

SGCC/SGCH/DX51D+Z

8.

Coil width

900mm-1250mm

9.

Coil weight

3-6 tons

10.

Coil ID

508mm-610mm

11.

Payment

T/T or L/C

12.

Package

seaworthy standard export package

13.

Shipment

shipped by 20 feet container, loading about 25 tons

 

Coating Characteristic table
ItemTest ItemStandardNational standardDF Test Result
1Color DifferenceECCA T3Δ E≤ 2.0Δ E≤ 1.5
2Gloss DifferenceECCA T2≤ 10≤ 5
3Coating ThicknessECCA T1Two layers Min 23um≥ 24um
Three layers Min 30um≥ 33um
4Pencil HardnessASTM D3363≥ HBHB
5T-bendASTM D4145≤ 2T≤ 2T
6AdhesionASTM D3359Grade 0Grade 0
7ImpactASTM D2794≥ 50 kg/cm≥ 50 kg/cm
8Boiling water ResistanceGB/T177482h No Change4h No Change
9Solvent ResistanceASTM D2248200 times paints remaining500 times no break
10Acidity ResistanceASTM D13085%HCL 24hrs no changeNo change
11Alkali ResistanceASTM D13085%NaOH 24hrs no change color Δ E≤ 2.0No change
12Nitric acid ResistanceAAMA620Δ E≤ 5.0Δ E≤ 5.0
13Oil ResistanceASTM D130820# oil 24hrs no changeNo change
14Salt Spray ResistanceASTM B1174000hrs≤ Grade 1No change
15Abrasion resistanceASTM D968≥ 5L/um≥ 5L/um
16Dirt ResistanceGB/T9780≤ 5%< 5%
17Color retainingGB/T162594000 hrsΔ E≤ 4.04000 hrsΔ E≤ 3.0
18Gloss weaken LevelGB/T162594000 hrs ≤ Grade 24000 hrs ≤ Grade 2

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Q:which kind of abraser should be used for deburring of aluminum sheet?
you can use soft resin grinding stone.
Q:could magnet attract iron with the seperation of rubber and aluminum sheets?
it does within the range of magnetic force.
Q:Could copper wire be welded with aluminum sheet?
Copper wire could be welded with aluminum sheet, and it needs to use low temperature welding method, if copper wire is in the unit of millimeter and aluminum sheet is also in the unit below 1 mm, you can use electric soldering iron to heat it as hybrid welding and choose low temperature welding materials, you can use WEWELDING M51 welding wire and M51-F flux to complete welding. As for the large aluminum sheet, you can take liquefied gas multihole lance as heat source, then choose the same low temperature materials as welding materials, you can use WEWELDING M51 welding wire and M51-F flux to complete welding. Welding fundamentals of these two welding methods: both of them are use heatable heat source to heat the matrix to 179 degree, the melting point of WEWELDING M51, then use matrix’s heat conduction to melt welding wire, completing welding. The process of melting welding wire is the process of smearing the welding wire with flux into welding area, melting welding wire completely depends on matrix’s heat conduction.
Q:what's the size of aluminum sheet circle?
aluminum sheet circle's texture 1060, 3003 thickness 0.4-5.0mm, diameter 190-760mm.
Q:When water continually sprays on the aluminum sheet, how to avoid corrosion of aluminum sheet and keep its water resistance?
aluminum will react with oxygen, generating dense Al2O3 oxide film on the surface, once the pure aluminum is exposed in air, it will react with air, generating oxide film to protect it.
Q:why does aluminum sheet not react with sulfuric acid nut react with hydrochloric acid?
aluminum reacts with hydrochloric acid,generating aluminium chloride which can dissolve in water. but aluminum reacts with sulfuric acid, generating aluminum sulfate which can't dissolve in water and will generate aluminum sulfate, a layer of protective film, preventing aluminum from reacting with sulfuric acid, so there is no significant phenomena.
Q:how to find 0.6mm waste strake of aluminum sheet?
ask door and window maker for some strake.
Q:what’s the difference of activated aluminum and aluminum sheet?
contain more water and activated
Q:why does the bubble apear a few minutes later after putting aluminum sheet into diluted hydrochloric acid?
Aluminum element is extremely activated and will react with oxygen, generating aluminum oxide, once being exposed in air, so there is a layer of aluminum oxide on the surface of daily aluminum products including aluminum sheet. When aluminum sheet is put into diluted hydrochloric acid, aluminum oxide on the surface will firstly react with hydrochloric acid, generating aluminium chloride and water, the process won’t generate bubble, but after finishing the reaction of aluminum oxide on the surface, when the exposed aluminum element reacts with hydrochloric acid, generating aluminium chloride and oxygen, the bubble appears.
Q:As for cast aluminum sheet or wrought one, which one has faster heat conduction?
1,duralumin: it's the alloy of aluminum, copper, magnesium, manganese and other metals. it's suitable for compacting by rolling, and it has a higher strength and hardness than common aluminum products. 2, aluminum: it contains many inpurities, is crisp and easy to be smashed.cast aluminum usually is secondary aluminum, and it is produced by remelting the collected old aluminum pots and spoons.3, wrought aluminum: it contains 98% aluminum and 2% or more inpurities, and is comparatively pure aluminum. its soft priority makes it suitable for being pressed into various shapes, aluminum pots,aluminum lunch box,aluminum sheets,aluminum wires,aluminum pipes are all made by wrought aluminum.you will know their defferences from their definition.

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