7075 aluminum square tube delivers one of the highest strength-to-weight ratios among aluminum hollow sections, with zinc as the primary alloying element. Linsy supplies 7075 square tube in T6, T651 and T7351 tempers for aircraft structures, fixtures and high-load frames where dimensional stability and rigidity are critical.
Verfügbare Formulare: square tube
Häufige Temperamente: O / T6 / T651 / T7351
Unterstützung bei der Bearbeitung: CNC machining, laser cutting, anodizing, polishing
Qualitätsdokumente: MTC-Bericht bei jeder Bestellung
7075 aluminum square tube delivers one of the highest strength-to-weight ratios among aluminum hollow sections, with zinc as the primary alloying element. Linsy supplies 7075 square tube in T6, T651 and T7351 tempers for aircraft structures, fixtures and high-load frames where dimensional stability and rigidity are critical. The T6/T651 tempers give maximum strength; T7351 improves resistance to stress-corrosion cracking for structural use in corrosive environments. 7075 is not marine-grade — confirm with our team for seawater exposure.
| Seite (mm) | Wand (mm) | Länge (mm) | Temperament |
|---|---|---|---|
| 10 – 300 | 1 – 30 | up to 16,000 | O, T6, T651, T7351 |
| Custom sizes available on request | — | — | — |
7075 square tube is supplied to ASTM B221 and AMS standards where applicable, with GB/T and EN references on request. EN AW designation: EN AW-7075.
| Element | Inhalt (%) |
|---|---|
| Si | 0,40 max. |
| Fe | 0,50 max. |
| Cu | 1.2 - 2.0 |
| Mn | 0,30 max. |
| Mg | 2.1 - 2.9 |
| Cr | 0.18 - 0.28 |
| Zn | 5.1 - 6.1 |
| Ti | 0,20 max. |
| Zr | 0.05 - 0.25 |
| Sonstige (jeweils) | 0,05 max |
| Sonstige (insgesamt) | 0,15 max |
| Al | Bilanz |
| Temperament | Tensile (MPa) | Yield (MPa) | Elong. (%) |
|---|---|---|---|
| O | 230 | 105 | 10 min |
| T6 | 570 | 505 | 11 |
| T651 | 570 | 505 | 11 |
| T7351 | 505 | 435 | 11 |
T6 / T651 — peak strength for frames and fixtures. T7351 — better stress-corrosion resistance for outdoor or corrosive service. 7075 is not marine-grade.
Strongest aluminum hollow section for mass-critical structures.
Uniform properties across the section after stress-relief (T651).
Prefer mechanical fastening over fusion welding.
Aircraft structures, molds and dies, high-stress machine frames, fasteners and fittings, defense and sporting goods.
CNC machining and laser cutting are supported; anodizing with sealant is advised for corrosion service.
Every order ships with an MTC. SGS third-party test reports available on request. Linsy holds ISO 9001, ISO 14001 and ISO 45001.
Linsy Aluminum is a Shenzhen-based supplier with 20+ years of experience across the 1000–8000 series. We custom-cut and finish 7075 square tube with MTC documentation per order. Typical custom lead time is 10–60 days.
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What wall thicknesses are available?
Typically 1–30 mm; custom sizes on request.
Is 7075 tube weldable?
Fusion welding is generally not recommended.
Wie ist die typische Lieferzeit?
10–60 days for custom sizes and tempers.
Do you provide MTC?
Yes, with every order.
Can you cut to length?
Yes, cut-to-length and CNC machining supported.
Which standards?
ASTM B221, AMS, GB/T and EN on request.
Linsy Vorteile
Linsy Aluminum ist ein führender Anbieter von Produkten für die Aluminiumverarbeitung und beliefert verschiedene Branchen wie die Luft- und Raumfahrt, den allgemeinen Maschinenbau, die Automobilindustrie, die Schifffahrt, den Schiffbau und andere spezialisierte industrielle Anwendungen.
Wir verpflichten uns, die höchsten Qualitäts- und Umweltstandards einzuhalten, was durch unsere Zertifizierungen belegt wird: ISO 9001:2008, ISO 14001:2004 und SGS.
