5049 aluminum is a non-heat-treatable 5xxx series alloy alloyed with magnesium (1.6-2.5%) and manganese (0.5-1.1%). Designated EN AW-5049, it offers excellent corrosion resistance, particularly in marine environments, along with good weldability and moderate-to-high strength. Available in O, H32, H34, and H36 tempers, 5049 is suitable for boat structures, pressure vessels, vehicle frames, and architectural applications. Linsy supplies 5049 aluminum with full MTC documentation and custom sizing options.
可选格式： 板材 / 板 / 卷材 / 棒材 / 管材 / 线材 / 型材
常见脾气： O / H32 / H34 / H36
处理支持： 数控加工 / 激光切割 / 抛光 / 阳极氧化
质量文件： 每笔订单均附有MTC报告
5049 aluminum is a non-heat-treatable wrought alloy in the 5xxx series, alloyed primarily with magnesium (1.6-2.5%) and manganese (0.5-1.1%). Magnesium provides solid-solution strengthening, while manganese contributes grain refinement and additional strength. The alloy is designated EN AW-5049 under the European standard EN 573-3.
As a strain-hardened alloy, 5049 gains strength through cold working rather than heat treatment. It is available in O (annealed), H32, H34, and H36 tempers, offering a range of strength-ductility combinations to suit different fabrication requirements.
5049 is closely related to other 5xxx series alloys such as 5052 and 5251, sharing similar magnesium-manganese chemistry. It is particularly valued in marine and structural applications where corrosion resistance and weldability are critical.
Linsy supplies 5049 aluminum in multiple forms with custom dimensions available upon request. Below are the standard size ranges for each product type.
| 产品 | 脾气 | 厚度（毫米） | 宽度（毫米） | 长度（毫米） |
|---|---|---|---|---|
| 5049 Sheet | O、H32、H34、H36 | 0.3-6.0 | 500-2600 | 500-16000 |
| 5049 Coil | O、H32、H34、H36 | 0.3-6.0 | 500-2600 | 线圈 |
Custom widths and lengths can be produced to specification. Sheet is typically supplied in flat form; coil is available for continuous processing applications.
| 产品 | 脾气 | 厚度（毫米） | 宽度（毫米） | 长度（毫米） |
|---|---|---|---|---|
| 5049 Plate | O、H32、H34、H36 | 6.0-200 | 500-2600 | 500-16000 |
Plate is cut from rolled stock and can be supplied in custom sizes. Thicker plates are typically supplied in O or H32 temper for structural applications.
| 产品 | 脾气 | 直径（毫米） | 长度（毫米） |
|---|---|---|---|
| 5049 Round Bar | O、H32、H34、H36 | 6-500 | 500-6000 |
Bars are available in round, square, and hexagonal cross-sections. Custom lengths and tolerances can be specified.
| 产品 | 脾气 | 外径（毫米） | 壁厚（毫米） | 长度（毫米） |
|---|---|---|---|---|
| 5049 Seamless Tube | O、H32、H34、H36 | 6-300 | 1-30 | 500-6000 |
| 5049 Welded Tube | O、H32、H34、H36 | 6-300 | 1-30 | 500-6000 |
Both seamless and welded tube options are available. Tube can be supplied in round, square, or rectangular profiles.
| 产品 | 脾气 | 直径（毫米） | 最小盘重 | Tolerance (mm) |
|---|---|---|---|---|
| 5049 Wire | O、H32、H34、H36 | 0.8-12.0 | 50公斤 | ±0.02 |
Wire is supplied in coil form. Custom diameters and spool packaging are available upon request.
5049 aluminum can also be supplied as extruded profiles, forgings, and custom shapes. Contact our team with your drawing or specification for a quotation.
| 标准 | 名称 |
|---|---|
| EN（欧洲） | EN AW-5049 |
| EN Chemical Symbol | AlMg2.5Mn |
| 国际标准化组织 | AlMg2.5Mn |
| Numerical Designation | 5049 |
| 系列 | 5xxx (Al-Mg) |
| 类型 | 不可热处理强化，可应变硬化 |
| 常见状态 | O、H32、H34、H36 |
| Relevant Standards | EN 573-3 (composition), EN 488 (sheet/plate), EN 755 (extruded products) |
The following composition conforms to EN 573-3 for EN AW-5049:
| 要素 | 内容 (%) |
|---|---|
| Si | 0.40（上限） |
| 铁 | 最大 0.50 |
| 铜 | 最大 0.10 |
| 锰 | 0.50-1.1 |
| 镁 | 1.6-2.5 |
| Cr | 0.30（上限） |
| 锌 | 0.20（最大值） |
| 其他，各 | 0.05 最大值 |
| 其他，合计 | 0.15 最大值 |
| Al | 平衡 |
The following table presents typical mechanical properties for 5049 aluminum across available tempers. Values are indicative and may vary with product form and thickness. Specific mechanical property requirements should be confirmed at the time of order.
| 财产 | 5049-O | 5049-H32 | 5049-H34 | 5049-H36 |
|---|---|---|---|---|
| 拉伸强度（兆帕） | 190-240 | 240-290 | 260-310 | 280-330 |
| Yield Strength, 0.2% (MPa) | ≥80 | ≥150 | ≥190 | ≥220 |
| Elongation, A50mm (%) | ≥20 | ≥12 | ≥10 | ≥8 |
| 硬度（布氏，HB） | ~50 | ~65 | ~70 | ~75 |
| 物理特性 | 价值 |
|---|---|
| 弹性模量 | 69 GPa |
| 密度 | 2.69 g/cm³ |
| 导热性 | ~135 W/(m·K) |
| Coefficient of Thermal Expansion (20-100°C) | 23.8 × 10⁻⁶ /K |
| 熔化范围 | 605-650°C |
5049 aluminum is a non-heat-treatable alloy strengthened through strain hardening. The choice of temper determines the balance between strength and formability:
| 脾气 | 条件 | 最适合 |
|---|---|---|
| O | Annealed, fully soft | Maximum formability — deep drawing, complex bending, and welding-intensive fabrication |
| H32 | 1/4 hard, strain hardened and stabilized | Balanced strength and formability — general structural applications, marine components |
| H34 | 1/2 hard, strain hardened and stabilized | Higher strength requirements — panels, frames, and pressure-containing components |
| H36 | 3/4 hard, strain hardened and stabilized | Maximum strength — applications where formability is less critical and rigidity is prioritized |
H3x tempers are stabilized after strain hardening, which ensures dimensional stability for applications involving thermal cycling. For welded structures, O or H32 tempers are generally recommended, as the heat-affected zone will locally anneal the material.
5049 aluminum offers excellent resistance to corrosion, particularly in marine and industrial environments. The magnesium content provides a stable protective oxide layer that performs well in saltwater exposure. Unlike some 2xxx and 7xxx alloys, 5049 does not suffer from stress corrosion cracking under normal service conditions, making it suitable for long-term outdoor and marine applications.
5049 has very good weldability using TIG (GTAW) and MIG (GMAW) processes. As a non-heat-treatable alloy, the heat-affected zone in welded joints softens to near-O temper condition, which should be factored into structural design. Filler metals such as 5356 or 5183 are commonly recommended for welding 5049 to maintain corrosion resistance and joint strength.
With a density of 2.69 g/cm³ and tensile strengths up to 330 MPa in H36 temper, 5049 provides a favorable strength-to-weight ratio for structural applications. It is approximately one-third the weight of steel while offering comparable strength-to-weight performance in many design scenarios.
In the O temper, 5049 exhibits excellent formability, suitable for deep drawing, bending, and stamping operations. Formability decreases progressively with higher H tempers. H32 retains good formability while offering moderate strength, making it a versatile choice for many fabrication processes.
5049 aluminum is used across industries where corrosion resistance, weldability, and moderate-to-high strength are required:
Linsy offers the following processing capabilities for 5049 aluminum products:
Surface finish options include:
For 5049, anodizing produces a clear or tinted finish. The Mg content may result in a slightly different anodic film appearance compared to 6xxx alloys. Sample finishing can be arranged for evaluation.
Every 5049 aluminum order from Linsy is accompanied by the following documentation:
Linsy operates under a quality management system certified to ISO 9001, an environmental management system certified to ISO 14001, and an occupational health and safety management system certified to ISO 45001.
Linsy Aluminum is a Shenzhen-based aluminum factory with over 20 years of experience supplying aluminum products to industrial buyers worldwide. We supply the full 1000-8000 series of aluminum alloys in forms including plate, bar, tube, wire, coil, profile, and block.
Our 5049 aluminum products are manufactured to standard specifications with custom dimensions available. Typical custom lead time is 10-60 days, depending on product form, quantity, and processing requirements. Our production capabilities include CNC machining, TIG and MIG welding, laser cutting, and a range of surface finishing options.
We serve customers across Europe, South Africa, Brazil, Singapore, Turkey, Japan, South Korea, and South Asia. Quality documentation, including MTC reports, is provided with every order. SGS third-party test reports are available on request.
For more information on aluminum alloys and selection guidance, explore the following resources:
5049 and 5052 are both 5xxx series Mg-Mn alloys with similar properties. 5049 has a slightly wider manganese range (0.5-1.1% vs. 0.10 max in 5052) and a comparable magnesium range. In practice, the two alloys are often used interchangeably in marine and structural applications, though specific project specifications may require one or the other.
Yes. 5049 has very good weldability using TIG and MIG processes. ER5356 filler wire is commonly used. The heat-affected zone will soften to approximately O temper condition, which should be considered in structural design calculations.
Yes. 5049 is well-suited for marine environments due to its excellent resistance to saltwater corrosion. It is used in boat hulls, deck structures, and other marine components. The Mg content provides a stable oxide layer that resists pitting and general corrosion in chloride environments.
5049 is available in O (annealed), H32 (1/4 hard), H34 (1/2 hard), and H36 (3/4 hard) tempers. O temper offers maximum formability, while H36 provides the highest strength. H32 is the most commonly specified temper for general structural applications.
No. 5049 is a non-heat-treatable alloy. It cannot be strengthened by solution heat treatment and aging (as with 6xxx or 7xxx alloys). Strength is achieved through strain hardening (cold working) and stabilization, which is what the H3x tempers indicate.
Minimum order quantities vary by product form and specification. Contact our sales team with your requirements for specific MOQ information.
Typical custom lead time is 10-60 days, depending on product form, quantity, and processing requirements. Standard stock items can be dispatched more quickly. A specific delivery timeline will be confirmed at the time of quotation.
Every order includes a Material Test Certificate (MTC) documenting chemical composition and mechanical properties. Mill certificates, dimensional inspection reports, and SGS test reports are available on request.
Yes. Custom dimensions, tolerances, and temper conditions can be produced to specification. Provide your drawing, specification, or requirements and our team will confirm feasibility and pricing.
Available surface finishes include mill finish, anodizing, polishing, powder coating, and PVC protective film. Specific finish options may vary by product form — please confirm availability for your required product type.
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