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.
Dostępne formularze: square tube
Typowe temperamenty: O / T6 / T651 / T7351
Wsparcie w zakresie przetwarzania: CNC machining, laser cutting, anodizing, polishing
Dokumenty dotyczące jakości: Raport MTC dołączany do każdego zamówienia
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.
| Side (mm) | Grubość ścianki (mm) | Długość (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 | Zawartość (%) |
|---|---|
| Si | maks. 0,40 |
| Fe | 0,50 maks. |
| Cu | 1.2 - 2.0 |
| Mn | maks. 0,30 |
| Mg | 2.1 - 2.9 |
| Cr | 0.18 - 0.28 |
| Zn | 5.1 - 6.1 |
| Ti | 0,20 maks. |
| Zr | 0.05 - 0.25 |
| Inni (każdy) | 0.05 max |
| Inne (łącznie) | 0,15 maks |
| Al | Równowaga |
| 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.
Explore these in-depth guides from our technical library:
What wall thicknesses are available?
Typically 1–30 mm; custom sizes on request.
Is 7075 tube weldable?
Fusion welding is generally not recommended.
Jaki jest typowy czas realizacji zamówienia?
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.
Zalety Linsy
Linsy Aluminium jest wiodącym dostawcą produktów do obróbki aluminium, obsługującym różne branże, w tym lotnictwo, inżynierię ogólną, motoryzację, przemysł morski, stoczniowy i inne specjalistyczne zastosowania przemysłowe.
Dążymy do utrzymania najwyższych standardów jakości i odpowiedzialności za środowisko, o czym świadczą nasze certyfikaty: ISO 9001:2008， ISO 14001:2004 oraz SGS.
