5052 0 Aluminum Tube
5052-O aluminum tube is made from 5052 aluminum alloy and processed through annealing (O-temper) to form the tubing.
5052-O aluminum tube is a non-heat treatable magnesium alloy aluminum product known for its excellent corrosion resistance, especially in marine environments, and is suitable for a variety of applications requiring moderate strength and good workability.
5052-O is a non-heat-treated aluminum alloy in an annealed ("O") state, offering a balance between strength, formability, and corrosion resistance.
In the O-temper (non-hardened) state, 5052 aluminum alloy has excellent ductility and formability, making it easy to perform various bending and welding operations during the manufacturing process. Although the strength of 5052 aluminum alloy in the O state is relatively low, its superior corrosion resistance allows it to meet the requirements of applications where lower strength is acceptable, such as hulls, sheet metal parts, and more. For parts with higher structural requirements, other tempers of 5052 aluminum alloy, such as H32 and H34, may be used to improve its strength.
The durability of 5052-O aluminum alloy gives it an advantage over many other metals in marine environments. Due to the dense oxide film formed on the surface of the aluminum alloy, it effectively resists seawater corrosion and reduces metal degradation. This characteristic greatly reduces maintenance costs and replacement frequencies in shipbuilding applications.
With excellent resistance to seawater corrosion, good welding and formability, and a relatively light weight, 5052-O aluminum alloy is widely used in marine and shipbuilding applications, especially for key parts exposed to seawater, such as hulls, fuel tanks, and sheet metal components. It not only enhances the durability of vessels but also reduces maintenance and repair costs, making it an indispensable material in marine engineering.
5052 O Aluminum Tube Specifications
| Item | Specifications |
| Outside Diameter (OD) | From 1/8 inch to 4 inches and larger (custom sizes available upon request) |
| Wall Thickness | From 0.02 inches to 0.175 inches, typically 0.035 inches (adjustable per request) |
| Length | Typically 6 feet or 12 feet straight lengths, custom lengths available upon request |
| Weight | For example, for an OD of 1/4 inch and wall thickness of 0.035 inches, the weight is approximately 0.028 pounds per foot |
| Standards & Certifications | General: ASTM B210, ISO certifications (e.g., AS9100, NADCAP) |
| Aerospace: AMS 4070, AMS 4071, WW-T-700/4 (Federal Specifications) |
5052 O Aluminum Tube Features
- Corrosion Resistance: Due to its magnesium content, 5052 performs excellently in marine and saline environments, making it an ideal choice for aerospace and marine applications.
- Mechanical Strength: With a tensile strength of 170-240 MPa and a yield strength ≥ 70 MPa, it offers superior fatigue resistance compared to 3003-O, which is crucial for environments like aircraft subject to vibration.
- Formability: Easily bent, expanded, or welded (by gas welding, arc welding, or resistance welding) without cracking, though it is harder than 3003-O and requires tooling for precise forming.
5052 O Aluminum Tube Chemical Composition
The main components are aluminum (balance), magnesium (2.2-2.8%), chromium (0.15-0.35%), with strict control over impurities such as copper and iron.
5052 O Aluminum Tube Mechanical Properties
- Tensile Strength: 170-305 MPa
- Yield Strength: ≥65 MPa
- Elongation: Excellent plasticity, suitable for deep drawing, bending, and other processing in the annealed (O) state.
- Fatigue Strength: Higher than most aluminum alloys, suitable for dynamic applications.
- Workability: Excellent; easy to stretch, form, weld, or braze into complex shapes.
- Corrosion Resistance: Excellent, especially resistant to seawater and salt spray, making it an ideal choice for marine and offshore applications.
5052 O Aluminum Tube Process Characteristics
The O-state is achieved through annealing at 345°C, improving the material's formability and weldability while reducing hardness.
5052 O Aluminum Tube Applications
Applications of 5052 O Aluminum Tube in the Marine Sector
5052 O aluminum alloy has significant applications in the marine sector, especially in shipbuilding. Its unique characteristics make it an ideal material for parts exposed to seawater, such as hull structures, fuel tanks, and sheet metal parts.
Hull Structures
Due to its excellent corrosion resistance, particularly its resistance to seawater, 5052 O aluminum alloy is widely used in hull construction. The hull is one of the most critical structures of a ship, being directly exposed to seawater, requiring materials with high corrosion resistance. The corrosion resistance of 5052 O aluminum alloy in saltwater environments is outstanding, effectively resisting seawater erosion and oxidation, thus prolonging the lifespan of the hull. Additionally, the good weldability of 5052 aluminum alloy makes it suitable for welding and assembling hulls.
Fuel Tanks and Liquid Containers
5052 O aluminum tubes are also widely used in ship fuel tanks and other liquid containers. Fuel tanks are commonly used to store fuel or lubricants, and the material's corrosion resistance is crucial. Due to its excellent seawater corrosion resistance, 5052 O aluminum alloy has become the preferred material for making these containers. Furthermore, 5052 aluminum alloy has excellent formability, allowing it to be processed into various shapes to meet the design requirements of ship fuel tanks and other liquid containers.
Ship Sheet Metal Parts
5052 O aluminum alloy plays an important role in ship sheet metal parts. These sheet metal parts are used in the ship's hull, fenders, railings, and other components that are frequently exposed to seawater and require corrosion and weather resistance. 5052 aluminum alloy can effectively prevent rust and corrosion in seawater, and its lightweight characteristics help reduce the overall weight of the ship, thereby improving navigation efficiency.
Other Seawater-Exposed Parts
Other parts exposed to seawater on ships, such as porthole frames, ship piping systems, rudders, and propellers, also commonly use 5052 O aluminum alloy. Due to the low density and excellent seawater corrosion resistance of 5052 aluminum alloy, it can be used for long periods in these environments without damage. Moreover, the corrosion resistance of 5052 aluminum alloy helps maintain structural stability even with prolonged exposure to seawater, reducing maintenance and replacement costs.
Other Applications of 5052 O Aluminum Tube
- Aerospace: Due to its strength and corrosion resistance, it can be used in fuel lines, hydraulic systems, and structural components.
- Automotive and Industrial: Suitable for fuel and oil pipes, as well as structural components requiring medium strength.
- Industrial Manufacturing: Chemical equipment pipelines, electronic and electrical housings, and building decorative profiles.
- Special Uses: Thin-walled conduit, precision instrument structural components.
- Construction: Due to its durability and aesthetic appeal, it can be used in exterior walls and roofing materials.
Advantages of 5052 O Aluminum Compared to Other Alloys
Compared to other aluminum alloy tubes (such as 6061, 3A21):
- Corrosion Resistance: Due to the magnesium and chromium content, it has exceptional resistance to marine environments.
- Workability: After annealing in the O state, it has improved plasticity, making it suitable for complex forming processes.
- Weldability: High weld strength, making it suitable for components that require frequent welding.
Comparison of 5052 O Aluminum with Other Alloys
- Compared to 3003-O: 5052-O has higher strength and better fatigue resistance, but lower flexibility. 3003 is easier to bend manually, while 5052-O requires tools.
- Compared to 6061-T6: 6061 has higher tensile strength, but poorer formability and fatigue resistance, making 5052-O more suitable for dynamic applications.
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