High Quality Hot Dipped 0.7 mm Thick Galvalume Z275 Roofing
Materials
Galvanized Aluminum Coil Az150 Galvalume Steel Coil
What is aluminium-zinc plated sheet
Aluminium-zinc plated sheet is a steel plate plating on the basis
of zinc with the addition of aluminium (passivation protection),
the general composition of 55% aluminium, 43.5% zinc, 1.5% silicon,
with excellent resistance to atmospheric corrosion, corrosion
resistance of galvanized sheet 2-5 times, but also has the high
temperature corrosion resistance of aluminium plate, smooth
surface, good appearance, but the formation of its plating and
resistance to welding a little worse. In foreign countries
generally about 40% of aluminium zinc plating used directly, about
60% of the plate is further as a colour coated substrate.
Galvanized Aluminum Roll is an important alloy material which is
often used in daily life. Aluminized zinc steel coil is aluminum
zinc alloy structure, composed of 55% aluminum, 43% zinc and 2%
silicon solidified at 600ºC and its entire structure is composed of
aluminum - iron - silicon - zinc, forming a dense quaternary
junction crystal of an alloy.
Main advantages
1, smooth surface, excellent resistance to atmospheric corrosion,
its corrosion resistance life is 2-6 times higher than hot-dip
galvanised steel;
2, with good heat and oxidation resistance, it does not change
colour for a long time under 300℃, and it can be used for a long
time around 500℃. In addition, the heat reflectivity of the product
is higher than 75%, which is 2 times higher than that of galvanised
sheet;
3, has excellent paintability and good processing performance. The
combination of machine material is strong, which is the best choice
for colour coated steel sheet substrate. Its processability and
weldability are similar to that of hot galvanised sheet, and it can
be processed by cold bending and stamping, and has a good
appearance.
Applications
Galvalume steel's superior protective characteristics and
economical price make it ideal for :
- Residential and commercial exterior building materials
- Decking
- Cladding
- Cabinetmaking
Tipps
Storage: The product should be stored in a ventilated and dry place
such as indoor, warehouse, etc. It should not be placed in an
acidic environment for a long time. Outdoor storage should avoid
rain to avoid condensation causing oxidation and discolouration.
Transportation: Avoid external impacts, the means of transport must
support the steel coils, reduce stacking, and take effective
measures against rain.
Processing: Use the same lubricant for cutting as for aluminium
sheets. When drilling or cutting aluminium galvanised steel sheets,
loose iron filings should be removed promptly.
Difference between GI and GL
The difference between galvanised steel and aluminium-zinc steel
mainly lies in the different coating, the surface of galvanised
sheet is evenly distributed with a layer of zinc material, the
parent material plays the role of anodic protection, that is to
say, the alternative corrosion of the zinc material protects the
use of the parent material, and only when the zinc is all corroded
to harm the parent material inside.
Corrosion resistance: The corrosion resistance of "aluminized zinc
steel coil" is mainly due to aluminum, aluminum's protective
function. When the zinc wears down, the aluminum forms a dense
layer of aluminum oxide, preventing the resistance from further
corroding the interior.
Heat resistance: Aluminum zinc alloy steel coil has good heat
resistance, can withstand the high temperature of 300 degrees
Celsius, and aluminum plated steel plate high temperature oxidation
resistance is very similar, often used in chimney tubes, ovens,
illuminators and daylight lampshades.
Thermal reflectivity: Aluminized zinc steel coil has a high thermal
reflectivity, twice that of galvanized steel, and is often used as
insulation material.
Economy: Because the density of 55%AL-Zn is less than that of Zn,
the area of the aluminum-zinc coil is more than 3% larger than that
of the steel coil, given the same weight and the same thickness of
the gold coating.
Product name | Galvanized Aluminum Coil |
Grade | SGCC/CGCC/DX51D+Z,A653 |
Type | GB Standard, European Standard |
| Material | S235GT,S355,STK400,STK500,Q345/Q235 |
Length | Standard 6m and 12m or as customer requirement |
Technique | Hot Rolled Cold Rolled |
Application | tructure construction,steel grating, tools |
Payment term | L/C, T/T or Western Union |
Width | 600-1500mm |
Zinc Coating | 20-275g/m2 |
DECHO building colour steel plate can meet the need to use colour
steel plate as raw material for building. Decho Building Materials
colour steel plate is mainly processed into, for example, colour
steel corrugated board or colour steel composite sandwich board
after our colour steel plate is widely used in the construction of
airports, freezers, steel plants, warehouses, and other industrial
buildings and commercial buildings, such as the roof of the colour
steel tiles, colour steel plate sandwich walls and doors.
Reasons for choosing Decho Building Materials new material:
- Provide extremely rich colour choices
- The paint surface is long-lasting and bright
- Surface coating will not fall off after stamping and has good
hardness with strong ductility and is not easy to scratch.
- with excellent weather resistance, corrosion resistance, is to
ensure the durability of the premise of the building
- DECHO BUILDING MATERIALS for the manufacturer direct sales
- The colour is customized by customers;
- Thickness and width have a variety of options;
- We provide whole rolls and cut boards for sale;
Welcome to enquire.
