7005 铝合金

7005 aluminum is a strong, weldable 7000-series (Al-Zn-Mg) alloy widely used for welded structures in marine, rail, and sporting-goods applications. It combines high strength with good corrosion resistance and excellent weld retention, making it a practical alternative to 6061 where more load capacity is needed. Linsy supplies 7005 as sheet, coil, tube, and bar in O, T5, T53, and T6 tempers.

可选格式: sheet / coil, tube, bar / rod
常见脾气: T6, T53, T5, O
处理支持: CNC 加工、激光切割、TIG/MIG 焊接、阳极氧化、抛光、粉末喷涂
质量文件: 每笔订单均附有MTC报告

What Is 7005 Aluminum?

7005 is strengthened by zinc and magnesium with added manganese for corrosion resistance and strength. Unlike the very high-strength 7075, 7005 is formulated to weld well and keep useful properties in the as-welded condition, which is why it appears in boat hulls, rail vehicles, and welded frames. Its strength is higher than 6061 and close to, though generally below, 7075.

Available 7005 Aluminum Products

板材/卷材

参数 厚度范围
厚度 0.3 – 150毫米
宽度 500 – 2600毫米
长度 500 – 16000毫米
情绪 O, T5, T53, T6

管材

参数 厚度范围
外径 6 – 300毫米
壁厚 0.5 – 40毫米
长度 最长12000毫米
情绪 O, T5, T53, T6

棒材/圆棒

参数 厚度范围
直径 3 – 300毫米
长度 最长12000毫米
情绪 O, T5, T53, T6

规格与等效牌号

名称 参考标准
AA / UNS A97005
EN AW EN AW-7005 / AlZn4.5Mg1.5Mn
常用标准 ASTM B221, EN 755, GB/T 3191
系列 7000 (Al-Zn-Mg)

化学成分

要素 含量(重量百分比)
硅 (Si) 0.35 最大值
铁(Fe) 0.40(上限)
铜 (Cu) 最大 0.10
锰 (Mn) 0.20 – 0.50
镁(Mg) 1.00 – 1.80
铬 (Cr) 0.06 – 0.20
锌 (Zn) 4.00 – 6.50
锆 (Zr) 0.08 – 0.20
钛 (Ti) 0.01 – 0.06
其他,各 0.05 最大值
其他,合计 0.15 最大值
铝 (Al) 平衡

不同回火状态下的力学性能

脾气 抗拉强度 (MPa) 屈服强度 (MPa) 伸长率 (%) 剪切强度(MPa)
T6 510 – 570 440 – 500 4 – 10 280 – 380
T53 470 – 540 400 – 460 4 – 10 280 – 380
T5 450 – 510 380 – 440 6 – 12 260 – 340
O ≤ 220 ≤ 110 ≥ 14 ≤ 140

硬度选择指南

T6

Peak strength for demanding welded or bolted structures.

T53

Stress-relieved for improved dimensional stability after welding; common in welded frames.

T5

Cooled from extrusion and aged; strong and economical for general structures.

O

Annealed for heavy forming before fabrication.

主要特点

焊接性

Excellent; widely used in welded assemblies that must stay strong after fabrication.

耐海洋腐蚀性

Good resistance suitable for boat hulls and offshore structures with proper finishing.

实力

Higher than 6061, below 7075.

Fatigue performance

Good for cyclic-loaded transport structures.

应用

  • Marine hulls, frames, and superstructures
  • Rail and metro vehicle bodies
  • Welded sporting-goods structures
  • Bridges and architectural welded frames

加工与表面处理说明

7005 welds readily with TIG/MIG using 5356 filler; post-weld artificial aging (T53/T6 route) can restore strength. It machines well and can be anodized, though 7xxx colors may vary slightly. For marine use, pair with appropriate surface finishing and isolation from dissimilar metals.

质量文件与检验

每笔订单均附带记录化学成分和力学性能的工厂质保书(MTC)。我们的质量体系已通过ISO 9001、ISO 14001和ISO 45001认证。可根据要求安排第三方SGS检测报告。检验涵盖尺寸、表面状态以及按状态进行的力学性能验证。.

Why Choose Linsy for 7005 Aluminum

Linsy Aluminum is a Shenzhen-based aluminum manufacturer with more than 20 years of experience supplying the 1000 to 8000 series in plate, bar, tube, wire, coil, profile, and block forms. For 7005 aluminum, we support both off-the-shelf ranges and made-to-order dimensions.

  • 认证: ISO 9001、ISO 14001和ISO 45001管理体系认证。.
  • 文件: 每笔订单均附带工厂质保书(MTC);可根据要求提供第三方SGS检测报告。.
  • 加工能力: 厂内CNC加工、TIG/MIG焊接、激光切割和表面处理(阳极氧化、抛光、铣面、粉末喷涂、PVC覆膜)。.
  • 交货周期: 典型定制交货周期为10至60天,具体取决于状态、尺寸和数量。.
  • 出口: 已出口至欧洲、亚洲、中东、非洲及美洲的20多个国家。.

相关资源

See the blog articles linked below for deeper background, and contact our team for a tailored quote on 7005 aluminum.

7005 Aluminum FAQ

Is 7005 good for marine use?

Yes. It offers good corrosion resistance and excellent weldability, which is why it is common in boat hulls and frames. Use proper finishing and avoid galvanic contact with dissimilar metals.

How does 7005 compare to 6061?

7005 is stronger and welds to higher retained strength, at some cost in corrosion margin versus 6061. Choose 7005 where load and weld performance dominate.

What filler is used for welding 7005?

5356 filler is typical for TIG/MIG welding of 7005. Confirm filler and post-weld treatment with your fabrication spec.

常见订购问题解答

定制铝材订单的典型交货周期是多久?

定制尺寸和热处理状态通常可在10至60天内发货。具体时间窗口请在询价时确认,因其取决于合金、热处理状态、尺寸及订单数量。.

最低订购量(MOQ)是多少?

最小起订量灵活,逐案评估。小批量及样品订单通常可以满足;大批量或标准规格订单更具经济性。请提供所需尺寸和数量以获取正式报价。.

订单附带哪些质量文件?

每笔订单均附带工厂材质证明书(MTC)。我们的管理体系已通过ISO 9001、ISO 14001及ISO 45001认证。可根据要求安排SGS第三方检测报告。.

发货前能否进行切割、机加工或表面处理?

可以。我们提供CNC机加工、激光切割、TIG/MIG焊接以及表面处理服务,包括阳极氧化、抛光、粉末喷涂及PVC膜保护。.

如何申请报价?

请提供您的合金/热处理状态、所需形态、尺寸、数量及任何加工或认证要求。我们的团队将回复包含交货周期和运输条款的报价。.

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