6061 aluminum square bar is a heat-treatable, extruded section that pairs good machinability with strength, weldability, and corrosion resistance. It is a dependable choice for structural frames, fixtures, fasteners, and general engineering parts.
可选格式： square bar / rectangular bar
常见脾气： O / T4 / T6 / T651 / T6511
处理支持： cut-to-length / CNC machining / anodizing / polishing
质量文件： 每笔订单均附有MTC报告
6061 square bar is an extruded profile with a square cross-section, commonly supplied in the T6 temper for maximum strength and dimensional stability. Its balance of machinability and corrosion resistance makes it a go-to section for both structural and precision-engineering work.
Square bars are supplied with side dimensions from 8 mm to 300 mm and lengths of 1000 – 6000 mm. T6511 is the standard extruded-and-stress-relieved temper for bars.
| 形式 | 脾气 | Side (mm) | 长度（毫米） |
|---|---|---|---|
| Square bar | T6, T651, T6511 | 8 – 300 | 1000 – 6000 |
| 要素 | 内容 (%) |
|---|---|
| 硅 (Si) | 0.40 – 0.80 |
| 铁（Fe） | 0.70（最大值） |
| 铜 (Cu) | 0.15 – 0.40 |
| 锰 (Mn) | 0.15 最大值 |
| 镁（Mg） | 0.80 – 1.20 |
| 铬 (Cr) | 0.04 – 0.35 |
| 锌 (Zn) | 最大 0.25 |
| 钛 (Ti) | 0.15 最大值 |
| 其他（每项） | 0.05 最大值 |
| 其他（共计） | 0.15 最大值 |
| 铝 (Al) | 剩余 |
The values below are typical room-temperature properties for 6061 and are representative of extruded, drawn, or rolled product. Exact numbers vary with section size and product form; final inspection is reported on the MTC.
| 脾气 | 拉伸强度（兆帕） | 屈服强度（兆帕） | 伸长率 (%) | Brinell Hardness (HB) |
|---|---|---|---|---|
| O | 124 | 55 | 25 | 30 |
| T4 | 241 | 145 | 22 | 65 |
| T6 | 310 | 276 | 12 | 95 |
| T651 | 310 | 276 | 12 | 95 |
6061 machines cleanly in T6, making it efficient for screw-machine products, fittings, and repeating components.
The square geometry provides predictable load paths for frameworks, jigs, and supports.
Good in most atmospheric environments; anodizing adds a durable, decorative surface.
Linsy Aluminum is a Shenzhen-based supplier with more than 20 years of experience in distributing and processing aluminum alloys from the 1000 to 8000 series. We support buyers with cut-to-length, CNC machining, welding preparation, surface finishing, and documented quality control.
Orders are handled against agreed lead times, and each lot is shipped with the corresponding MTC. Our team works with procurement, engineering, and fabrication customers to match the right temper and form to the application.
T6 and T6511 are the most common for structural and machined bars; T6511 adds stress relief for better stability after cutting.
Yes. 6061 anodizes well and is frequently specified for architectural and decorative sections.
It welds well with standard aluminum processes; design for some strength loss in the heat-affected zone.
Standard stock sizes are usually dispatched within 10 – 60 days depending on temper, form, and finishing. Custom-cut or specially heat-treated material is confirmed at quotation.
Yes. An MTC is supplied with every order, and third-party test reports (for example SGS) can be arranged on request.
We can work to ASTM, EN, GB/T, JIS, and customer-specific drawings. Please share the required standard when requesting a quote.
Yes. Cutting-to-length, CNC machining, and basic fabrication are available; discuss your requirements when ordering.
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。
