7055 铝合金

7055 aluminum is one of the highest-strength 7xxx series alloys, with very high zinc plus copper, magnesium, and zirconium. It was developed to exceed 7050 and 7075 in compression strength and fatigue performance, especially in thick sections, and is used for the most demanding aerospace structures. The T7751 temper provides an excellent balance of strength and corrosion resistance. Linsy supplies 7055 in plate, tube, bar, and wire with mill test certificates on every order. Composition values below follow the AA standard and should be confirmed against the mill certificate.

可选格式: plate, tube, bar / rod, wire
常见脾气: F, H112, O, T6, T651, T7451, T77, T7751
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 7055 Aluminum?

7055 aluminum is one of the highest-strength 7xxx series alloys, with very high zinc plus copper, magnesium, and zirconium. It was developed to exceed 7050 and 7075 in compression strength and fatigue performance, especially in thick sections, and is used for the most demanding aerospace structures. The T7751 temper provides an excellent balance of strength and corrosion resistance. Linsy supplies 7055 in plate, tube, bar, and wire with mill test certificates on every order. Composition values below follow the AA standard and should be confirmed against the mill certificate.

Available 7055 Aluminum Products

板材

可提供的状态: F、O、T6、T651、T7451、H112

脾气 厚度(毫米) 宽度(毫米) 长度(毫米)
F、O、T6、T651、T7451、H112 0.5 – 200 500 – 2600 500 – 16000(可按需定尺切割)

管材

可提供的状态: T77, T7751

脾气 外径(毫米) 壁厚(毫米) 长度(毫米)
T77, T7751 6 – 300 0.5 – 40 500 – 12000

棒材/圆棒

可提供的状态: T77, T7751

脾气 直径(毫米) 长度(毫米)
T77, T7751 3 – 300 500 – 12000

线材

可提供的状态: T77, T7751

直径(毫米) 卷材重量 宽容
0.8 – 30 至少 50 公斤 ± 0.02 毫米

规格与等效牌号

7055 aluminum (EN AW-7055, AlZn8MgCuZr) is supplied to common wrought-alloy specifications. Typical standards by form: ASTM B209 (sheet and plate), ASTM B221 (extruded tube, bar, and profiles), ASTM B211 (bar and rod), ASTM B247 (forging stock), and ASTM B313 (welded tube). Always confirm the exact specification and temper with our team for your order.

化学成分

要素 百分比 (%)
Si 最大 0.10
0.15 最大值
2.0 - 2.6
0.05 最大值
1.8 - 2.3
Cr 0.04 最大值
7.6 - 8.4
Ti 0.06 最大值
Zr 0.08 - 0.25
其他(每项) 0.05
其他(共计) 0.15
Al 平衡

不同回火状态下的力学性能

脾气 拉伸强度(兆帕) 屈服强度(兆帕) 伸长率 (%) 剪切强度(兆帕)
T7751 570 – 600 520 – 550 10 – 12 150 – 340
T6 / T651 570 – 600 520 – 550 10 – 12 150 – 340

Values are typical for the T7751 / T6 tempers. Composition was corrected to AA 7055 limits (see audit report) and must be confirmed with the mill certificate.

硬度选择指南

  • T7751 — Peak overaged temper; primary aerospace choice with strength plus corrosion resistance.
  • T6 / T651 — Peak-aged for maximum strength where corrosion is less critical.
  • F / O — As-fabricated and annealed conditions for forming before heat treatment.

主要特点

Highest strength among common 7xxx

Exceeds 7050 and 7075 in compression and fatigue.

Excellent fatigue performance

Holds up under cyclic load in thick sections.

Good stress-corrosion resistance (T7751)

Overaging balances strength and corrosion.

Poor weldability

Supplied as machined or formed parts.

应用

  • Aerospace wing skins and spars
  • Military airframe structures
  • High-performance forgings
  • Space structures
  • Racing and performance components

加工与表面处理说明

Linsy CNC-machines and laser-cuts 7055, then anodizes or paints for corrosion protection. Welding is not recommended.

质量文件与检验

Linsy 是一家总部位于深圳的铝材供应商,拥有超过 20 年的经验。我们的质量体系已通过 ISO 9001、ISO 14001 和 ISO 45001 认证。每笔订单均附带工厂测试证书 (MTC)。可根据要求提供 SGS 第三方测试报告。典型的定制交货期为 10-60 天,具体取决于状态、尺寸和数量。.

Why Choose Linsy for 7055 Aluminum

  • 深圳工厂,拥有 20 多年服务航空航天、汽车和通用工程采购商的经验
  • 产品形态范围广泛:板材、片材、卷材、管材、棒材、线材、型材和锻件原料
  • 在同一工厂内提供 CNC 加工、激光切割、TIG/MIG 焊接以及阳极氧化/抛光/粉末喷涂服务
  • 每笔订单均附带工厂测试证书;可根据要求提供 SGS 报告
  • 通过 ISO 9001 / ISO 14001 / ISO 45001 认证的运营

相关资源

For deeper reading on 7xxx selection and fabrication, see our guides on aluminum alloy selection, welding 7000-series alloys, and aircraft-grade tempers. (Internal links to be connected to published Linsy blog articles.)

7055 Aluminum FAQ

Is 7055 stronger than 7075?

Yes. 7055 is among the strongest commercial 7xxx alloys, with higher compression and fatigue strength, especially in thick sections.

Which temper is best for corrosion?

T7751 offers the best balance of strength and stress-corrosion resistance.

Is 7055 weldable?

No, it is not a welding grade; design as machined or formed parts.

订单附带哪些文件?

每笔订单均附带 MTC,可根据要求提供 SGS 第三方测试报告。.

常见订购问题解答

通常的交货周期是多久?

定制铝材订单通常在 10-60 天内发货,具体取决于合金、状态、尺寸和数量。库存或标准尺寸可能更快——请咨询我们的团队。.

我能获得工厂测试证书吗?

可以。每笔订单均包含 MTC。可根据要求提供 SGS 第三方测试报告。.

你们提供机加工和表面处理服务吗?

是的。我们提供 CNC 加工、激光切割、焊接、阳极氧化、抛光和粉末喷涂服务,以便零件可以以更接近成品的形式交付。.

如何申请报价?

请发送您的合金、状态、尺寸、数量和所需标准。我们的团队将确认供货情况、交货期和价格。.

生产设备

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仓库和库存

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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。

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