Different alloy proportion,
production methods and techniques
should be applied to produce
customer-oriented aluminum
extrusions.
A 4-figure serial number system is applied to classify extrusions. The classifications are specified as follows:
Alloy classification |
Representative alloy |
Material characteristics |
Main use |
1000 series |
1050、1070 |
High pure aluminum, electric conductivity, heat conductivity, corrosion-resistance |
a conducting material for the heat exchange installment, piping for chemical engineering |
2000 series |
2011、2014 2017、2117 2024 |
outstanding machinability, high strength, inferior corrosion-resistance |
duralumin , a machinable material; can be made for screw, airplane, forging, sports goods and automobile hydraulic parts |
3000 series |
3003、3203 |
better thermal stability than pure aluminum. high intensity., better corrosion-resistance |
heat exchange installment, duplicator photosensitive tube, piping for chemical engineering |
4000 series |
4032 |
Heat-resisting, hard-wearing |
VCR magnetic head, piston components, forging uses |
5000 series |
5052、5056 |
mid-intensity alloy, good corrosion-resistance and weldability |
piping for chemical engineering, machine parts, camera tubes |
6000 series |
6061 |
outstanding corrosion-resistance, mid-intensity, alloy. weldable and can be further processed |
for vehicles, ships, materials for delivery-via-sea, road construction, sports goods |
6063 |
good corrosion-resistance and surface processing, good extrusiveness |
primitive extrusion material for building , construction, decoration, the electrical appliances and other daily supplies |
7000 series |
7005 |
mid-intensity |
alloy for welding and the material for automobile components. |
7075 |
Is called Constol ktarl, highest-strength alloy, inferior weldability and corrosion-resistance |
High-strength material for aero-plane components or sports goods. |
8000 series |
8090,8091 |
less practicality |
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We at present produces 1000,3000,5000,6000,7000 series alloy primarily.
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