7020 aluminum is a medium-strength 7xxx series wrought alloy with zinc and magnesium as the main hardeners. It is valued for excellent weldability, good corrosion resistance, and strong fatigue performance, making it a common choice for welded transport and structural assemblies. Compared with 7075 it offers slightly lower peak strength but better fabrication behavior, especially in marine or humid service. Linsy supplies 7020 in sheet, plate, tube, bar, and wire with full mill certificates and a range of tempers for welding and structural use.
可选格式： 板材/片材、管材、棒材/圆棒、线材
常见脾气： O, T5, T6, T651
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
7020 aluminum is a medium-strength 7xxx series wrought alloy with zinc and magnesium as the main hardeners. It is valued for excellent weldability, good corrosion resistance, and strong fatigue performance, making it a common choice for welded transport and structural assemblies. Compared with 7075 it offers slightly lower peak strength but better fabrication behavior, especially in marine or humid service. Linsy supplies 7020 in sheet, plate, tube, bar, and wire with full mill certificates and a range of tempers for welding and structural use.
可提供的状态： T5, T6, T651
| 脾气 | 厚度（毫米） | 宽度（毫米） | 长度（毫米） |
|---|---|---|---|
| T5, T6, T651 | 0.5 – 150 | 500 – 2600 | 500 – 16000（可按需定尺切割） |
可提供的状态： T5, T6, T651, O
| 脾气 | 外径（毫米） | 壁厚（毫米） | 长度（毫米） |
|---|---|---|---|
| T5, T6, T651, O | 6 – 300 | 0.5 – 40 | 500 – 12000 |
可提供的状态： T5, T6, T651, O
| 脾气 | 直径（毫米） | 长度（毫米） |
|---|---|---|
| T5, T6, T651, O | 3 – 300 | 500 – 12000 |
可提供的状态： T5, T6, T651, O
| 直径（毫米） | 卷材重量 | 宽容 |
|---|---|---|
| 0.8 – 30 | 至少 50 公斤 | ± 0.02 毫米 |
7020 aluminum (EN AW-7020, AlZn4.5Mg1) 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), and ASTM B313 (welded tube). Forging stock follows ASTM B247. Always confirm the exact specification and temper with our team for your order.
| 要素 | 百分比 (%) |
|---|---|
| Si | 0.35 最大值 |
| 铁 | 最大 0.50 |
| 铜 | 0.20（最大值） |
| 锰 | 0.20 – 0.60 |
| 镁 | 1.0 – 1.4 |
| Cr | 0.10 – 0.35 |
| 锌 | 4.0 – 5.0 |
| Ti | 0.20（最大值） |
| Zr | 最大 0.10 |
| 其他（每项） | 0.05 |
| 其他（共计） | 0.15 |
| Al | 平衡 |
| 脾气 | 拉伸强度（兆帕） | 屈服强度（兆帕） | 伸长率 (%) | 剪切强度（兆帕） |
|---|---|---|---|---|
| T6 | 360 – 420 | — | 8 – 12 | ~ 250 |
| T651 | 360 – 420 | — | 8 – 12 | ~ 250 |
数值为指定条件下的典型值。长破折号（—）表示该值在源数据中不可用；请与工厂测试证书确认。带星号的值是待验证的估算值——请参阅审核报告。.
One of the more weldable 7xxx grades; widely used in welded frameworks.
Performs well under cyclic loading in transport structures.
Better than high-copper 7xxx alloys in humid and marine atmospheres.
Lower peak strength than 7075 but easier to fabricate and join.
Linsy cuts 7020 with laser and machines it on CNC centers. It welds well with MIG/TIG using matching or compatible fillers; post-weld aging can recover properties. Anodizing or powder coating improves surface durability.
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。.
如需更深入地了解 7xxx 系列的选择和制造，请参阅我们关于铝合金选择和 7000 系合金焊接的指南。（内部链接将连接到已发布的 Linsy 博客文章。）
7020 trades some peak strength for much better weldability and corrosion behavior, which matters for welded transport and marine structures.
We supply O, T5, T6, and T651 across sheet, tube, bar, and wire. Tell us the fabrication route and we will advise a temper.
Yes. Anodizing improves corrosion and wear resistance; note that the coating color on 7xxx alloys can vary, so confirm appearance expectations with us.
Yes, every order includes an MTC, and SGS third-party reports are available on request.
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。.
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。.
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。.
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。.
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。
