5052 aluminum alloy is a non-heat-treatable Al-Mg alloy with excellent corrosion resistance, particularly in marine and saltwater environments. It offers good weldability, formability, and moderate-to-high strength depending on temper. Linsy Aluminum supplies 5052 in sheet, plate, coil, bar, tube, wire, and profile forms with O, H32, H34, and H38 tempers. Custom dimensions and surface finishes are available with typical lead times of 10–60 days. Every order ships with a Mill Test Certificate (MTC).
可选格式： 板材 / 板 / 卷材 / 棒材 / 管材 / 线材 / 型材
常见脾气： O / H32 / H34 / H38
处理支持： CNC machining / laser cutting / TIG & MIG welding / polishing / anodizing / powder coating
质量文件： 每笔订单均附有MTC报告
5052 is a non-heat-treatable aluminum-magnesium alloy in the 5xxx series, containing approximately 2.2–2.8% magnesium as its primary strengthening element. The magnesium content provides solid-solution strengthening, giving 5052 higher strength than alloys such as 3003 and 5050 without the need for heat treatment.
Its standout property is 卓越的耐腐蚀性, especially in marine and saltwater environments, which makes 5052 one of the most widely used alloys for boat hulls, fuel tanks, and other structures exposed to moisture. It also offers good weldability across all standard methods (TIG, MIG, resistance) and retains most of its strength in welded zones.
5052 cannot be strengthened by heat treatment. Its strength increases through strain hardening (cold working), which produces the H-series tempers (H32, H34, H38, etc.). The annealed condition (O temper) provides maximum formability at lower strength.
Linsy Aluminum supplies 5052 across a broad range of forms and dimensions. Custom sizes outside the standard ranges listed below can be arranged — contact our team with your requirements.
| 形式 | 脾气 | 厚度（毫米） | 宽度（毫米） | 长度（毫米） |
|---|---|---|---|---|
| 5052 Sheet | O, H32, H34, H38 | 0.3–6.35 | 500–2600 | 500–16000 |
| 5052 Coil | O、H32、H34 | 0.3–3.0 | 500–1600 | Coil form |
Sheet and coil are the most commonly ordered forms. H32 temper is the default for general-purpose sheet; O temper is preferred when maximum bend radius or deep-draw formability is required.
| 脾气 | 厚度（毫米） | 宽度（毫米） | 长度（毫米） |
|---|---|---|---|
| O、H32、H34 | 6.35–200 | 500–2600 | 500–16000 |
Plate is distinguished from sheet by thickness. 5052 plate in H32 temper is widely used for marine structural panels, pressure vessel shells, and truck body flooring.
| 形式 | 脾气 | Diameter / Size (mm) | 长度（毫米） |
|---|---|---|---|
| Round bar | O、H32、H34 | φ6–φ400 | 500–6000 |
| Flat bar | O, H32 | 6–100 (thickness) × 10–300 (width) | 500–6000 |
| 形式 | 脾气 | 外径 (mm) | ID (mm) | 长度（毫米） |
|---|---|---|---|---|
| Round tube | O, H32 | φ6–φ300 | φ4–φ280 | 500–6000 |
5052 tube is commonly specified for marine railing, handrail, and lightweight structural frames where corrosion resistance is critical.
| 脾气 | 直径（毫米） | 重量/线圈 |
|---|---|---|
| O、H32、H34 | 0.8–30 | 至少 50 公斤 |
5052 wire is used for welding filler applications (when matched to base metal), rivets, and light fasteners in marine-grade assemblies.
Custom extruded profiles in 5052 are available on request. Extrusion of 5xxx-series alloys requires higher pressure than 6xxx series due to the magnesium content, so profile complexity and wall thickness minimums may differ. Contact Linsy for a feasibility review of your cross-section design.
| 标准 | 名称 |
|---|---|
| UNS | A95052 |
| EN AW | EN AW-5052 (EN AW-AlMg2.5) |
| 国际标准化组织 | AlMg2.5 |
| GB（中国） | 5A02 (需核查) |
| JIS | A5052 |
5052 is covered under ASTM B209 (sheet & plate), ASTM B211 (bar), ASTM B210 (tube), and ASTM B221 (extruded profiles). When ordering, specify both the alloy designation and the applicable ASTM/EN standard to avoid grade confusion.
The composition below follows the Aluminum Association registration for A95052. Values are weight percent, maximum unless a range is shown.
| 要素 | 内容 (%) |
|---|---|
| Si | ≤0.40 |
| 铁 | ≤0.50 |
| 铜 | ≤0.10 |
| 锰 | ≤0.10 |
| 镁 | 2.2–2.8 (需核查) |
| Cr | 0.15–0.35 |
| 锌 | ≤0.25 |
| 其他元素（每种） | ≤0.05 |
| 其他元素（总计） | ≤0.15 |
| Al | 平衡 |
Note: The Mg range shown (2.2–2.8%) follows the AA/UNS specification for A95052. Some national standards (e.g., GB 5A02) list different Mg ranges. Confirm the applicable standard for your order.
5052 gains strength through strain hardening. Typical mechanical properties for the most common tempers are listed below. These are typical values per Aluminum Association standards — actual values on your MTC may vary within the specified ranges.
| 脾气 | Ultimate Tensile Strength (MPa) | 屈服强度（兆帕） | 伸长率 (%) |
|---|---|---|---|
| O | 180–215 | ≥65 | 12–25 |
| H32 | 210–260 | ≥130 | 5–10 |
| H34 | 230–280 | ≥150 | 3–6 |
| H38 | 260–310 | ≥205 | 2–4 |
For comparison, the elastic modulus of 5052 aluminum is approximately 69.3 GPa across all tempers. Fatigue strength at 500 million cycles is roughly 110–140 MPa, depending on temper.
Choosing the right temper depends on your forming requirements versus the strength you need:
If your application involves significant cold forming, start with O temper and specify the final temper only if post-forming strain hardening or partial annealing is planned.
5052 exhibits excellent resistance to saltwater, industrial atmospheres, and many chemicals. This is its primary advantage over 3xxx-series alloys. In marine environments, 5052 forms a stable oxide film that resists pitting and general corrosion. It is one of the most cost-effective marine-grade alloys, often compared with 5083 (higher Mg, higher strength, higher cost).
5052 welds readily using TIG, MIG, resistance, and gas methods. It does not suffer from hot cracking or significant strength loss in the weld zone. Welded joint efficiency typically exceeds 80% of base-metal strength for O and H32 tempers. No pre- or post-weld heat treatment is required.
In the O temper, 5052 offers very good formability — suitable for deep drawing, spinning, and complex stamping. As temper increases (H32 → H34 → H38), formability decreases and minimum bend radii increase. H32 can still handle moderate bends; H34 and H38 require larger bend radii.
5052 cannot be strengthened by solution heat treatment and artificial aging. All strength above the annealed level comes from cold working (strain hardening). This means H-series tempers will partially soften if exposed to moderate heating (above ~150°C) during processing — a factor to consider when planning post-forming welding or heat-based surface treatments.
5052 aluminum is used across industries where corrosion resistance and moderate-to-high strength are required without heat treatment:
For applications that require higher strength in a marine environment, consider 5083 铝 (higher Mg content, higher tensile strength). For general structural work where corrosion is less critical, 6061-T6 offers higher strength via heat treatment.
Linsy Aluminum provides the following processing and surface finish options for 5052 products:
Caution: H32 and H34 tempers will partially anneal if heated above approximately 150°C during processing. If post-welding or post-forming strength must be maintained, discuss temper recovery options with our engineering team.
Every 5052 aluminum order from Linsy includes:
Material traceability is maintained from heat number through delivery. Custom inspection protocols (e.g., ultrasonic testing, penetrant inspection) can be arranged for specific project requirements.
Linsy Aluminum is a Shenzhen-based aluminum factory with over 20 years of experience supplying 1xxx through 8xxx series alloys to domestic and international customers. Our 5052 product range covers sheet, plate, coil, bar, tube, wire, and profile in O, H32, H34, and H38 tempers.
For deeper technical comparisons and application guides, see these articles:
6061-T6 has higher ultimate tensile strength (~310 MPa) and yield strength (~275 MPa) than 5052-H32 (~260 MPa / ~130 MPa). However, 5052-H32 retains more strength after welding, while 6061-T6 loses significant strength in the heat-affected zone. For welded marine structures, 5052 often outperforms 6061 in practice.
No. 5052 is a non-heat-treatable alloy. Its strength comes from magnesium in solid solution and cold working (strain hardening). It cannot be solution heat treated and aged like 6xxx or 7xxx alloys.
H32 is 1/4-hard (stabilized), offering a balance of strength and formability. H34 is 1/2-hard (stabilized), providing higher yield and tensile strength but reduced bend capability. For moderate forming, H32 is preferred; for flat structural panels where bending is minimal, H34 may be chosen.
Yes. 5052 is one of the most widely used marine-grade aluminum alloys, offering excellent saltwater corrosion resistance, good weldability, and adequate strength for hulls, decks, tanks, and railings. For higher-strength marine applications, 5083 is the next step up.
Use 5356 or 5556 filler wire for welding 5052. These match the Mg content of the base metal and provide good color match after anodizing. 4043 filler is acceptable for non-anodized structural welds but will produce a visible color difference if anodized.
Linsy Aluminum works with both small-quantity trial orders and large-volume production runs. Contact our sales team with your quantity and specification for a tailored quotation.
Standard catalog sizes are often available from stock or near-stock. Custom dimensions and processing typically require 10–60 days lead time, depending on complexity and quantity.
Yes. We offer anodizing (clear and colored), powder coating, polishing, mill finish with PVC film, and other surface treatments. Specify your finish requirement at the time of order so we can plan the processing sequence correctly.
A Mill Test Certificate (MTC) is included with every order. SGS third-party test reports and dimensional inspection reports are available on request. All documents can be provided in digital (PDF) format.
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