5052 Aluminum Round Bar Stock
5052 Aluminum Round Bar Stock
5052 Aluminum Round Bar Stock (UNS A95052) offers excellent corrosion resistance, good weldability, and moderate strength. Suitable for marine components and general fabrication, with custom diameters and cut lengths available.
- Mill Test Certificate Provided
- Strict Quality Inspection
- Custom Sizes Available
- On-Time Global Delivery
5052 Aluminum Round Bar Stock, designated UNS A95052, is a non-heat-treatable aluminum-magnesium alloy containing approximately 2.2–2.8% magnesium. It offers excellent corrosion resistance, particularly in marine and humid environments, along with good weldability and moderate mechanical strength. Typical applications include marine fittings, transportation equipment, fabricated components, and general industrial assemblies.
Unlike heat-treatable alloys such as 6061 and 7075, 5052 develops increased strength through cold working rather than precipitation hardening. It provides good ductility and forming performance, particularly in softer tempers. However, its machining characteristics are generally less favorable than those of 6061-T6, making it a less practical choice for high-volume precision machining. For heavily loaded structural components, the required strength and material condition should be carefully evaluated.
Sky Steel Group supplies 5052 aluminum round bars for marine equipment manufacturers, metal fabricators, and industrial distributors. Available diameters, lengths, and tempers depend on the manufacturing process and supplier capabilities. Custom cutting, dimensional inspection, and material test certificates can be arranged according to order requirements. Buyers should specify the required temper, applicable material standard, dimensions, and quantity when requesting a quotation.
Key Features of 5052 Aluminum Round Bar Stock
- Marine Corrosion Resistance: Offers good resistance to seawater and marine atmospheric corrosion, making it suitable for marine fittings and equipment components.
- Moderate Mechanical Strength: Provides higher strength than commercially pure 1100 aluminum in comparable conditions, with additional strengthening available through cold working.
- Good Weldability: Supports TIG and MIG welding with suitable filler materials and welding procedures.
- Good Formability: Allows bending and forming in softer tempers, while harder conditions require greater consideration of forming limits.
- Non-Heat-Treatable Alloy: Develops strength through strain hardening rather than precipitation heat treatment.
- Custom Supply Options: Available in supplier-confirmed diameters, lengths, and tempers, with cutting and material certification options upon request.
Technical Specifications of 5052 Aluminum Round Bar Stock
| Parameter | Specification |
|---|---|
| Product Name | 5052 Aluminum Round Bar Stock |
| Alloy Grade | 5052 |
| UNS Designation | A95052 |
| Material Type | Aluminum-Magnesium Alloy (5xxx Series) |
| Aluminum Content | Balance |
| Magnesium Content | 2.2–2.8% |
| Chromium Content | 0.15–0.35% |
| Material Standards | ASTM B211 / ASTM B221 (as applicable; alloy, temper and product coverage subject to confirmation) |
| Temper | O and applicable strain-hardened tempers, subject to confirmation |
| Diameter | Custom sizes available |
| Length | Standard or custom cut lengths |
| Density | Approx. 2.68 g/cm³ |
| Tensile Strength | To be confirmed for the supplied temper, diameter and applicable product standard |
| Yield Strength | To be confirmed for the supplied temper, diameter and applicable product standard |
| Elongation | To be confirmed for the supplied temper, diameter and applicable test requirements |
| Brinell Hardness | Temper dependent; subject to manufacturer confirmation |
| Thermal Conductivity | Approx. 138 W/m·K (typical reference; condition dependent) |
| Electrical Conductivity | Approx. 35% IACS (typical reference; condition dependent) |
| Corrosion Resistance | Excellent in many marine and atmospheric environments |
| Weldability | Good (TIG / MIG) |
| Surface Finish | Mill Finish / As Supplied |
| Processing Options | Cutting, Bending, Forming, Welding |
| Material Certification | MTC available upon request, subject to confirmation |
| Applications | Marine Fittings, Transportation Components, Fabricated Parts, Industrial Equipment |
Physical properties are typical reference values. Mechanical properties must be confirmed for the actual round bar product and supplied temper; sheet H32 values are not round bar acceptance criteria.
Applications of 5052 Aluminum Round Bar

01. Marine Hardware & Fittings
5052 aluminum round bars can be fabricated into boat fittings, railing connectors, mounting brackets, and deck hardware. Their resistance to marine atmospheric corrosion makes them a practical choice for coastal equipment and marine hardware exposed to moisture and salt spray.
02. Architectural & Building Applications
5052 aluminum round bars are suitable for railing connectors, decorative fittings, outdoor fixtures, and architectural hardware. The alloy combines good corrosion resistance with formability, making it useful for fabricated components exposed to changing weather conditions.
03. Transportation & Automotive Components
5052 aluminum round bars can be used to produce vehicle mounting brackets, spacers, trim fittings, and lightweight hardware. Their corrosion resistance and relatively low weight are useful for transportation equipment, particularly for non-critical components exposed to outdoor conditions.
04. General Fabrication & Machining
5052 aluminum round bars can be processed into bushings, spacers, fittings, and custom hardware. The alloy offers good weldability and formability. During machining, its ductility may cause long chips or built-up edges, so cutting conditions should be adjusted to the supplied temper.
Frequently Asked Questions About 5052 Aluminum Round Bar Stock
1. What is 5052 aluminum round bar?
5052 aluminum round bar is a non-heat-treatable aluminum-magnesium alloy, designated UNS A95052. It contains approximately 2.2–2.8% magnesium and is known for its good corrosion resistance, weldability, and moderate mechanical strength. Typical applications include marine fittings, transportation equipment, brackets, and general industrial components where corrosion resistance and fabrication performance are important.
2. What is the difference between 5052 and 6061 aluminum round bar?
The main differences are their strengthening mechanisms, mechanical properties, and machining characteristics. Grade 5052 is strengthened through cold working and offers good corrosion resistance and formability. Grade 6061 is heat-treatable and generally provides higher strength and better machinability in the T6 condition. For precision-machined components or higher-strength applications, 6061-T6 may be more suitable, while 5052 is often selected for formed or welded parts exposed to corrosive environments. Final selection should consider the required temper, loading conditions, and manufacturing process.
3. Is 5052 aluminum round bar suitable for marine applications?
Yes. 5052 aluminum offers good resistance to marine atmospheric corrosion and many seawater environments, making it suitable for certain marine fittings, brackets, and equipment components. However, continuous seawater immersion, crevice conditions, galvanic contact with dissimilar metals, and high mechanical stresses require careful evaluation. Suitability depends on the component design, operating conditions, and maintenance requirements.
4. Can 5052 aluminum round bar be welded?
Yes. 5052 aluminum has good weldability and can be joined using TIG or MIG welding with suitable filler materials and procedures. However, welding can reduce the strength of strain-hardened material in the heat-affected zone (HAZ). For load-bearing welded components, designers should account for the mechanical properties of the welded assembly rather than relying solely on the strength of the original base material.
5. Is 5052 aluminum round bar suitable for CNC machining?
5052 aluminum can be machined using appropriate cutting tools, speeds, feeds, and lubrication. However, its relatively ductile characteristics may cause built-up edges, chip control difficulties, and surface finish challenges. Compared with 6061-T6, it is generally less convenient for high-volume precision machining. For components requiring extensive turning or milling, material selection should balance machinability, corrosion resistance, and mechanical strength.
6. What ASTM standards apply to 5052 aluminum round bar?
Applicable ASTM standards depend on the manufacturing process and product form. ASTM B211/B211M covers aluminum and aluminum-alloy rolled or cold-finished bars, while ASTM B221 covers extruded bars, rods, wires, profiles, and tubes. ASTM B209/B209M applies to aluminum sheet and plate rather than round bar stock. Buyers should verify that the specified standard and edition cover the required 5052 alloy, temper, dimensions, and manufacturing method before placing an order.
7. What tempers and sizes are available for 5052 aluminum round bar?
Available tempers, diameters, and lengths depend on the manufacturing process and supplier capabilities. Annealed (O) and certain strain-hardened conditions may be available where permitted by the applicable product specification. Common sheet tempers such as H32 and H34 should not automatically be assumed available for round bars. Buyers should confirm the required temper, dimensional tolerances, and mechanical properties before ordering.
8. Can Sky Steel Group provide custom-cut 5052 aluminum round bars and material certificates?
Sky Steel Group can assist with inquiries for custom diameters, cut lengths, and applicable material specifications. Cutting services, dimensional inspection, and material test certificates (MTC) may be arranged subject to supplier capabilities and order confirmation. For an accurate quotation, please provide the required alloy, temper, ASTM standard, diameter, length, quantity, and any special tolerance or certification requirements.








