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.
可选格式： square tube
常见脾气： O / T6 / T651 / T7351
处理支持： CNC machining, laser cutting, anodizing, polishing
质量文件： 每笔订单均附有MTC报告
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) | 壁厚（毫米） | 长度（毫米） | 脾气 |
|---|---|---|---|
| 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.
| 要素 | 内容 (%) |
|---|---|
| Si | 0.40（上限） |
| 铁 | 最大 0.50 |
| 铜 | 1.2 - 2.0 |
| 锰 | 0.30（上限） |
| 镁 | 2.1 - 2.9 |
| Cr | 0.18 - 0.28 |
| 锌 | 5.1 - 6.1 |
| Ti | 0.20（最大值） |
| Zr | 0.05 - 0.25 |
| 其他（每项） | 0.05 最大值 |
| 其他（共计） | 0.15 最大值 |
| Al | 平衡 |
| 脾气 | 抗拉强度 (MPa) | 屈服强度 (MPa) | 延伸率 (%) |
|---|---|---|---|
| O | 230 | 105 | 10 最小值 |
| 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.
每份订单均附带MTC。可根据要求提供SGS第三方检测报告。林西持有ISO 9001、ISO 14001和ISO 45001认证。.
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?
通常不建议进行熔焊。.
通常的交货周期是多久？
10–60 days for custom sizes and tempers.
Do you provide MTC?
是的，每份订单均附带。.
Can you cut to length?
Yes, cut-to-length and CNC machining supported.
Which standards?
ASTM B221, AMS, GB/T and EN on request.
林西优势
林西铝业是铝加工产品的领先供应商，服务于航空航天、通用工程、汽车、船舶和其他专业工业应用等多个行业。
我们致力于保持最高标准的质量和环境责任，我们的认证证明了这一点：ISO 9001:2008、ISO 14001:2004 和 SGS 认证。
