7075 Aluminum Tube
Wall Thickness: 0.5mm - 25mm (0.02" - 1.0")
Length: 1000mm - 12000mm (39" - 472")
Temper Conditions: O, T6, T651, T7351
Surface Finish: Mill Finish, Anodized, Chemical Film (Chromate)
Applicable Standards: ASTM B210, AMS 4045, AMS 4048, EN AW-7075
Certification: ISO 9001, SGS test report, material certificate (MTC)
Our 7075 aluminum tube is a premium zinc-magnesium-copper aluminum alloy renowned for its exceptional strength-to-weight ratio, making it one of the highest-strength aluminum alloys commercially available. Originally developed for aircraft applications, 7075 offers mechanical properties comparable to many steels while maintaining the lightweight characteristics of aluminum. Our 7075 tubes are manufactured to meet the most stringent aerospace and defense standards, ensuring superior performance in demanding applications.
Product Specifications
|
Parameter |
Specification Range |
|
Outside Diameter |
6mm - 300mm (0.24" - 11.8") |
|
Wall Thickness |
0.5mm - 25mm (0.02" - 1.0") |
|
Length |
1000mm - 12000mm (39" - 472") |
|
Temper Conditions |
O, T6, T651, T7351 |
|
Surface Finish |
Mill Finish, Anodized, Chemical Film (Chromate) |
|
Applicable Standards |
ASTM B210, AMS 4045, AMS 4048, EN AW-7075 |
Chemical Composition
|
Element |
Content (%) |
|
Aluminum (Al) |
87.1 - 91.4 |
|
Zinc (Zn) |
5.1 - 6.1 |
|
Magnesium (Mg) |
2.1 - 2.9 |
|
Copper (Cu) |
1.2 - 2.0 |
|
Chromium (Cr) |
0.18 - 0.28 |
|
Iron (Fe) |
≤ 0.50 |
|
Silicon (Si) |
≤ 0.40 |
|
Manganese (Mn) |
≤ 0.30 |
|
Other Elements |
≤ 0.15 |
Mechanical Properties
|
Temper |
Tensile Strength (MPa) |
Yield Strength (MPa) |
Elongation (%) |
Hardness (HB) |
|
O (Annealed) |
230 |
105 |
17 |
60 |
|
T6 (Solution & Aged) |
570 |
505 |
11 |
150 |
|
T651 (Stress Relieved) |
570 |
505 |
11 |
150 |
|
T7351 (Overaged) |
505 |
435 |
13 |
135 |
Frequently Asked Questions
Q: What is the difference between T6 and T7351 temper?
A: T6 offers maximum strength but lower stress corrosion cracking resistance. T7351 is overaged for improved stress corrosion resistance with slightly reduced strength.
Q: Can 7075 aluminum tube be welded?
A: 7075 is generally considered unweldable by conventional methods due to hot cracking susceptibility. Mechanical fastening is preferred.
Q: How does 7075 compare to 6061 aluminum?
A: 7075 offers approximately twice the strength of 6061 but has lower corrosion resistance and is less formable.
Q: What surface treatments are recommended?
A: Anodizing (Type II or III) or chemical conversion coating (chromate) is recommended for corrosion protection.
Q: What is the maximum service temperature?
A: 7075 should not be used above 120°C (250°F) for prolonged periods due to potential overaging and strength reduction.
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