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Aluminum seamless pipe for bicycle and motorcycle frame

Aluminum bicycle frames, mainly apply by 6061 F, some high-class bicycle using 7050, 7055, 7003, 7075 etc. As the aluminum alloy has advantage of light weight and corrosion resistance, anti-oxidation etc. Aluminum seamless pipe for bicycle and motorcycle frame are more widely used in the bick rack. The self developed 7XN5 new alloy pipe, can be used for bicycle main frame, making anti-bending fatigue performance from the traditional 60,000 to 120,000 times.



Aluminum alloy seamless pipe is sued in frame structure as hand parts, brake pads, brake plate etc, which ever automotive it is. Weighted sports racing vehicle requires, not only light weighted function and handing stability, but also on appearance to attract the eyes. Therefore, the wheel and controlling bottom beam, control pedal, etc, have all been made of the high strength and processed aluminum alloy.





Extrusion technology: indirect extrusion+ T6 Heat treatment+cold drawn
Material properties: high hardness, high mechanical properties and high cutting performance.
Material alloy: 6061 T6, 7075 T6

Specification:
Alloy:7075、6061
Temper: T6
OD: 3--130mm
ID: 3--100mm
Length: 1000mm--6000mm

Chemical Composition of 6061 6351 6082 Aluminum Tube Pipe
Alloy Si Fe Cu Mn Mg Cr Ni Zn Ga V Ti Other Min.Al
6061 0.40-0.80 0.7 0.15-0.40 0.15 0.8-1.2 0.04-0.35 - 0.25 - - 0.1 0.15 Remainder
7075 0.40 0.50 1.2-2.0 0.30 2.1-2.9 0.18-0.28 - 5.1-6.1 - - 0.20 0.15 Remainder

Physical Property  of 6061  Aluminum Tube Pipe
Alloy Temper Wall thickness
/mm
Room temperature Test Result
Tension Strength/MPa Yield Strength/MPa Elongation/%
A50mm A
Not less than
6061 O all 170 105 16 14
T1 ≤16.00 260 240 8 -
T42 all 180 85 16 14
T62 ≤6.30 260 240 8 -
>6.30 260 240 10 9
T4、T4510、T4511 all 180 110 16 14
T51 ≤16.00 240 205 8 7
T6、T6510、T6511 ≤6.30 260 240 8 -
>6.30 260 240 10 9
F all - - -- -
Physical Property
Alloy Temper Wall thickness
/mm
Room temperature Test Result
Tension Strength/MPa Yield Strength/MPa Elongation/%
A50mm A
Not less than
7075 O、H111 ≤10.00 ≤275 ≤165 10 10
T62 ≤6.30 540 485 7 -
>6.30-12.50 560 505 7 6
>12.50-70.00 560 495 7 6
    T6、T6510、T6511 ≤6.30 540 485 7 -
>6.30-12.50 560 505 7 -
>12.50-70.00 560 495 - 6
T73、T73510、T73511 1.60-6.30 470 400 5 7
>6.30-35.00 485 420 6 8
>35.00-70.00 475 405 - 8
Application
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