5052 Aluminum Rectangular Tube
The 5052 aluminum rectangular tube is a rectangular cross-section tube made from 5052 aluminum alloy as the base material.
The 5052 aluminum rectangular tube is an extruded profile made from 5052 aluminum alloy, known for its excellent corrosion resistance (especially in marine environments) and good weldability. These tubes are widely used in applications where lightweight, durable, and corrosion-resistant materials are needed.
5052 is a non-heat-treatable aluminum alloy primarily composed of magnesium and chromium. It has medium to high strength, especially noted for its outstanding corrosion resistance, particularly in seawater and salt-laden environments. The alloy is also known for its excellent finish quality and can be easily welded using the most common techniques.
5052 Aluminum Rectangular Tube Dimensions and Specifications
| Specification Item | Range/Parameter |
| Wall Thickness | 0.125 inches to 0.250 inches |
| Width | 1.5 inches to 6 inches |
| Height | 1 inch to 12 inches |
| Condition | O (Annealed), H111 (Strain-hardened and slightly cold worked), H112 (Naturally aged) |
| Certification | Conforms to AMS 4070/4071 (Aerospace), ASTM, and AS9100 standards, ensuring quality |
These tubes can be cold drawn to achieve precise dimensions and smooth surfaces, enhancing their applicability in areas that require strict tolerances and high-quality surface finishes.
Notes:
Wall Thickness: The wall thickness of the 5052 aluminum rectangular tube is available in a range from 0.125 inches to 0.250 inches, providing good strength and corrosion resistance depending on the application requirements.
Width and Height: The width and height of this rectangular tube range from 1.5 inches to 6 inches and 1 inch to 12 inches, respectively, to meet different structural needs.
Condition: The 5052 aluminum rectangular tube is available in different condition options:
O (Annealed): Suitable for applications requiring softening and good processing performance.
H111 (Strain-hardened and slightly cold worked): Suitable for applications requiring higher strength.
H112 (Naturally aged): Used for applications requiring certain strength without further hardening treatment.
Certification: The 5052 aluminum rectangular tube conforms to aerospace industry AMS 4070/4071 standards, as well as other ASTM and AS9100 standards, ensuring its reliability and quality in critical application fields such as aerospace and other high-demand industries.
These specifications and certifications make the 5052 aluminum rectangular tube widely used in marine, transportation, construction, and industrial fields.
5052 Aluminum Rectangular Tube Surface Treatment
To enhance durability and aesthetics, the 5052 tube can undergo the following treatments:
- Anodizing: Enhances corrosion resistance and allows for color customization.
- Powder Coating: Adds a protective layer to prevent wear and environmental damage.
- Polishing: Achieves a smooth, attractive surface.
5052 Aluminum Rectangular Tube Features
- Corrosion Resistance: Due to its magnesium content (2.2-2.8%) and chromium content (0.15-0.35%), 5052 forms a protective oxide layer, making it perform excellently in harsh environments, especially in marine and aerospace applications.
- Mechanical Strength: The tensile strength ranges from 170-240 MPa (depending on condition), with a yield strength of 70 MPa in the O/H111 condition. Cold working can improve strength without the need for heat treatment.
- Weldability and Formability: It can be easily welded using TIG or MIG methods without cracking, and it can be extruded, bent, or rolled into complex shapes.
- Lightweight: The 5052 Aluminum Rectangular Tube is highly suitable for applications where reducing weight is crucial.
5052 Aluminum Rectangular Tube Mechanical Properties
In the H32 temper, the 5052 aluminum has the following properties:
- Tensile Strength: 33, 000 PSI
- Yield Strength: At least 28, 000 PSI
- Elongation: At least 12% within 2 inches (approximately 5.0 cm)
These properties make it suitable for structural applications requiring moderate strength and formability.
5052 Aluminum Rectangular Tube Mechanical Performance
| Performance Index | Value Range | Test Conditions |
| Tensile Strength (σb) | 170-500MPa | Different hardened states |
| Yield Strength (σ0.2) | ≥65-235MPa | Room temperature longitudinal test |
| Elongation | >80% (Annealed state) | Standard specimen |
| Hardness | HB170-240 (T6 state) | After heat treatment |
5052 Aluminum Rectangular Tube Physical Properties
- Density: 2.68-2.73g/cm³ (slight differences depending on processing state)
- Electrical Conductivity: Approximately 35% IACS at 20°C
- Surface can be anodized to improve aesthetics and weather resistance
5052 Aluminum Rectangular Tube Applications
Applications of 5052 Aluminum Rectangular Tube in the Marine Industry
The application of 5052 aluminum rectangular tube in the marine industry offers significant advantages, especially in shipbuilding and marine structures, mainly due to its excellent corrosion resistance and good machinability.
Due to its properties, 5052 aluminum rectangular tube is commonly used in:
- Marine structures: Ship frameworks, railings, and hull components
- Ship pipelines and bulkhead structures
- Ships: Due to its saltwater resistance, it can be used for hulls, decks, and offshore structures.
Ship Frames and Structural Components
5052 aluminum alloy is highly suitable for ship frames and structural components due to its excellent saltwater corrosion resistance. Aluminum rectangular tubes are used in shipbuilding for:
- Hull frames: The lightweight nature of 5052 aluminum rectangular tube helps reduce the overall weight of the ship, thereby improving fuel efficiency.
- Support structures: Used to support ship’s bridge, driveways, or internal structures, helping to maintain stability and structural integrity.
Railings and Guardrails
In the external structure of ships, 5052 aluminum rectangular tube is often used to make railings, guardrails, and safety protection devices. These components need to withstand salt mist, moisture, and frequent exposure in a marine environment, so:
- Corrosion resistance: 5052 aluminum has excellent saltwater corrosion resistance, making it suitable for long-term exposure in seawater.
- High strength: The alloy has high strength and good weldability, ensuring that railings and guardrail systems remain strong over long-term use.
Ship Pipelines and Bulkhead Structures
5052 aluminum rectangular tubes are also used in ship internal pipeline systems and bulkhead structures, especially in cases where lightweight, corrosion resistance, and good machinability are required. Common applications include:
- Drainage systems: In ship drainage pipelines, 5052 aluminum rectangular tubes are widely used due to their corrosion resistance and saltwater resistance.
- Bulkhead structures: Dividing walls, compartments, and cargo hold structures inside the ship can use 5052 aluminum rectangular tubes to provide strength and stability, while avoiding common corrosion problems of steel.
Ship Hulls and Decks
5052 aluminum rectangular tubes can also be used for structural components in ship hulls and decks. These components are often exposed to harsh environmental conditions such as saltwater, storms, and UV rays, and therefore offer the following advantages:
- Saltwater resistance: 5052 aluminum alloy maintains excellent corrosion resistance in saltwater environments, does not rust easily, and extends the service life of hull and deck components.
- Lightweight: The low density of aluminum alloy effectively reduces the weight of the ship compared to traditional steel, improving speed and payload capacity.
Marine Structures
5052 aluminum rectangular tube is also used in other marine structures, such as floating platforms, offshore oil and gas platforms, and port facilities. Due to its excellent corrosion resistance and machinability, it has widespread use in these applications:
- Offshore platforms: Used for supporting and framing offshore oil drilling platforms or other fixed/floating platforms, helping to enhance structural stability and durability.
- Floating structures: 5052 aluminum rectangular tube is widely used in floating structures (such as floating docks) that need to be exposed to seawater for extended periods.
Due to its lightweight, corrosion resistance, and ease of processing, 5052 aluminum rectangular tube is an indispensable material in the marine industry, especially in shipbuilding, marine structures, and ship pipeline systems. It helps reduce weight, improve structural strength, and extend the service life of ships and marine structures, significantly enhancing their performance in harsh marine environments.
Other Fields of Application for 5052 Aluminum Rectangular Tube
- Aerospace components: Aircraft structures and parts, fuel lines, hydraulic systems, fuselage frames, and engine components.
- Automotive: Automotive body supports, body panels, chassis, and structural supports.
- Architectural decoration: Handrails, supports, decorative components, curtain wall beams, corrosion-resistant railings, roofs, handrails, and building frames.
- Transportation: Truck and trailer components.
- Fluid systems: Fuel/lubricating oil conduits, hydraulic system pipelines.
- Industrial equipment: Frames and structural supports, heat exchanger frames, instrument housings, lightweight shelving, chemical storage tanks, heat exchangers, and mechanical parts.
5052 Aluminum Rectangular Tube Process Performance
Forming Process
Cold working hardening results in low plasticity, but it is better during semi-cold working hardening.
Hot working processes exhibit excellent plasticity, with recommended forging/die-forging temperatures between 420-475°C.
Welding Performance
Supports gas welding, arc welding, and resistance welding. Weld strength is high. ER5356 welding wire is recommended.
Machining Limitations
Poor machinability, but it improves after cold working hardening.
Annealing after cold processing (e.g., annealing at 345°C) should be controlled to reduce residual stress.
5052 Aluminum Rectangular Tube Quality Requirements
- Surface should be free of cracks, corrosion spots, or local defects with depth ≤ 0.5mm and area coverage < 5%.
- Longitudinal grinding may be allowed to improve surface smoothness.
5052 Aluminum Rectangular Tube Procurement Considerations
- Material Certification: Confirm compliance with ASTM or AMS standards to ensure quality.
- Supplier Reputation: Choose manufacturers with certifications such as ISO 9001, and mature expertise in aerospace or marine applications.
- Surface Quality: Check for cracks or oxidation defects before purchase.
- Customization: Suppliers often provide custom sizes (e.g., up to 6, 000mm in length) and surface treatments.
5052 Aluminum Rectangular Tube Advantages Over Other Alloys
- Superior strength and corrosion resistance compared to 3003 and 5251 alloys.
- Unlike 6061/6063, 5052 cannot be heat-treated, but it offers excellent formability for complex designs.
5052 aluminum rectangular tubes are a cornerstone material for industries that focus on lightweight, durability, and corrosion resistance. Its diverse manufacturing processes meet stringent aerospace standards, making it a reliable choice for industrial and decorative applications.
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