7075 aluminum round tube provides an outstanding strength-to-weight ratio for structural frames and high-load applications. With zinc as the primary element, it offers high hardness and fatigue resistance where structural integrity is critical. Linsy supplies 7075 round tube in O, T6, T651, T73, and T7351 tempers with custom cutting, CNC machining, and anodizing support. Every order ships with an MTC report so you can verify composition and properties before production.
Dostępne formularze: round tube / plate / sheet
Typowe temperamenty: O / T6 / T651 / T73 / T7351
Wsparcie w zakresie przetwarzania: CNC machining / cutting / anodizing / polishing
Dokumenty dotyczące jakości: Raport MTC dołączany do każdego zamówienia
7075 aluminum round tube provides an outstanding strength-to-weight ratio for structural frames and high-load applications. With zinc as the primary element, it offers high hardness and fatigue resistance where structural integrity is critical.
Linsy supplies 7075 round tube across the common tempers. The size ranges below are typical; custom dimensions and tight tolerances can be quoted on request.
| Dimension | Typical Range |
| Outside diameter | 10 – 400 mm |
| Wall thickness | 1 – 40 mm |
| Długość | 1,000 – 6,000 mm (custom cut) |
| Tempers | O / T6 / T651 / T73 |
| System | Oznaczenie |
| AA (USA) | 7075 |
| EN AW | EN AW-7075 |
| UNS | A97075 |
| ISO | AlZn5.5MgCu |
| Typowe stany | O / T6 / T651 / T73 / T7351 |
| Element | Zawartość (%) |
| Krzem (Si) | maks. 0,40 |
| Żelazo (Fe) | 0,50 maks. |
| Miedź (Cu) | 1.2 - 2.0 |
| Mangan (Mn) | maks. 0,30 |
| Magnez (Mg) | 2.1 - 2.9 |
| Chrom (Cr) | 0.18 - 0.28 |
| Cynk (Zn) | 5.1 - 6.1 |
| Tytan (Ti) | 0,20 maks. |
| Cyrkon (Zr) | 0,25 maks |
| Inni (każdy) | 0.05 max |
| Inne (łącznie) | 0,15 maks |
| Aluminium (Al) | Reszta |
Values below are typical AA reference figures for 7075 and should be confirmed against Linsy mill test data before specification.
| Temperament | Wytrzymałość na rozciąganie (MPa) | Granica plastyczności (MPa) | Wydłużenie (%) | Wytrzymałość na ścinanie (MPa) |
| O | 230 | 105 | 10 | — |
| T6 | 570 | 505 | 11 | 330 |
| T651 | 570 | 505 | 11 | 330 |
| T73 | 525 | 470 | 11 | — |
| T7351 | 525 | 455 | 11 | — |
| Temperament | When to use |
| O | Annealed, softest condition for forming; lowest strength. |
| T6 / T651 | Peak strength tempers for general high-stress parts; T651 adds stress relief for improved dimensional stability. |
| T73 / T7351 | Overaged tempers with improved corrosion resistance and reduced quench sensitivity; preferred for thick sections and corrosive environments. |
7075 is one of the strongest commercial aluminum alloys, with T6/T651 yield strength around 505 MPa.
Bare 7075 has moderate general corrosion resistance. The T73/T7351 tempers improve resistance to stress-corrosion cracking, especially in thicker sections.
Machinability is excellent in the T6 condition. Weldability is poor — fusion welding is generally not recommended; mechanical fastening or adhesive bonding is preferred.
7075 round tube can be CNC-machined, cut, and profiled to drawing. Anodizing is possible but offers limited corrosion benefit compared with 6xxx alloys; for corrosive service consider the T73 temper or a protective coating. Fusion welding is not advised — design for mechanical joining.
Every 7075 aluminum order ships with a Mill Test Certificate (EN 10204 3.1 MTC) confirming chemical composition and mechanical properties against the specified temper. In-process inspections cover dimensional tolerance, surface condition, and flatness or straightness as applicable. Third-party inspection and SGS test reports can be arranged on request for project-specific requirements.
For maximum strength use T6 or T651. For better corrosion resistance in thick or corrosive sections, choose T73/T7351.
Fusion welding of 7075 is generally not recommended due to cracking risk and strength loss. Mechanical fastening or bonding is preferred.
Yes. We cut to length and can machine to drawing. Provide required dimensions and tolerances in your RFQ.
Standard stock sizes are usually dispatched within 10–60 days depending on temper, quantity, and any custom processing. Confirm the exact schedule with our sales team when requesting a quote.
Yes. We cut to length, saw, and CNC-machine to drawing, and can source specific tempers on request. Provide your required dimensions and tolerance in the RFQ.
A Mill Test Certificate (MTC) is included with every order. SGS or other third-party inspection reports can be arranged when needed.
Common options include mill finish, anodizing, and polishing. Specific finishes should be agreed at the quotation stage.
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.
