High performance, high fatigue strength of 7NX5 aluminum alloy

time：2019-12-04

7NX5 alloy is independently researched and developed by our factory. As one of the 7 × × × aluminum alloy, 7NX5 aluminum alloy has been applied to the customer applications as: bicycle frame, wheelchair frame, motorcycle shock absorber, car anti-collision beam, military down platform, sports equipment, leisure chairs and other products.

Comparison of Mechanical Properties of 7NX5 Aluminum Alloy with Other Aluminum Alloys

Alloy	Mechanical Property
Alloy	RM(mpa)	RP(mpa)	A(%)	HB
6063	220	180	8
6061	260	240	10	90
6082	310	260	10	95
7NX5	360	310	12	125
7075	540	470	6	150

Alloy	Mechanical Property
Alloy	RM(mpa)	RP(mpa)	A(%)	HB
7NX5-T73	405	370	15	130

7NX5 structure

General Performance Comparison

Alloy	Comparison of fatigue strength of bicycle frame	Anodization	Machinability	Weldability
6061-T6	Appr 60000 times	Excellent color	Excellent	Excellent
6063-T6	/	Excellent color	Excellent	Excellent
6082-T6	/	Good color	Excellent	Excellent
7NX5-T73	Apper 130000 times	Best color	Excellent	Excellent
7075-T73	Apper 110000 times	Ordinary color	Best	Good