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Aluminum alloy classification
 



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  

We at present produces 1000,3000,5000,6000,7000 series alloy primarily.



Quality control equipment
 
Specification aluminum ingot production:3" 3.5" 4" 4.5" 5" 5.5" 6" 7" 8" 9"



Quality control equipment
 
All of our quality inspection facilities are certified and proved by ISO 9002, we thus can produce extrusions that suffice the specifications and requests under CNS 2257. The facility is as follows:

● Spectrometer ● Ultrasonic flaw detector ● Metallographic examination

These instruments can examine the physical and chemical properties of extrusions for ensuring quality consistency.


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