5052-O H32 Aluminum Seamless Tubes AMS 4070 / WW-T-700/4
5052 aluminum in the O temper (5052-O) is fully annealed, meaning it is soft, ductile, and ideal for deep drawing, flaring, and complex bending. By contrast, 5052-H32 is strain-hardened and partially annealed to achieve higher tensile and yield strength while maintaining good formability.
In simple terms, 5052-O is the most formable, while 5052-H32 offers more strength. These characteristics make 5052 seamless tubes a reliable choice where corrosion resistance, weldability, and lightweight performance are required across marine, HVAC, chemical, and transportation systems.
5052 h32 / o aluminum specifications
Mechanical properties
| Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| O (Annealed) | 193 | 90 | 25–30 | 47 |
| H32 | 228 | 193 | 10–12 | 60 |
| H112 | 200 | 90 | 18–25 | 50 |
Available size range
| Specification | Range |
|---|---|
| Outer Diameter (OD) | 6 mm – 300 mm |
| Wall Thickness | 0.5 mm – 20 mm |
| Length | Up to 6,000 mm (custom available) |
| Tolerance (cold drawn) | ±0.05 mm |
Product forms of 5052 h32/o aluminum tube
Shenzhen Chinalcometal provides 5052 H32 / O aluminum tubing in multiple seamless configurations, depending on strength, tolerance, and forming requirements:
Round seamless tubes (cold drawn or extruded + cold finished)
Square tubes
Rectangular tubes
Custom profiles and non-standard shapes
Precision-cut, deburred, and cleaned tubes for OEM processing
These forms are widely used in marine hardware, vehicle systems, HVAC coils, and equipment manufacturing.
What is 5052 h32 aluminum tube used for?
1. Marine / Offshore tubing
5052 is one of the best non-heat-treatable alloys for saltwater.
Typical uses include:
Fuel and vent lines
Seawater cooling pipes
Desalination equipment tubing
Marine heat-exchanger coils
2. Automotive / Transportation systems
Lightweight and corrosion-resistant, suitable for:
Fuel tubes and vapor lines
Low-pressure hydraulic return lines
EV battery cooling and thermal-management tubes
Heat exchanger coils
3. HVAC / Thermal systems
Strong thermal conductivity and excellent bendability make 5052 ideal for:
Air-conditioning coils
Heat pump lines
Condenser and dehumidifier tubing
Refrigerant transfer pipes
4. Chemical / Industrial equipment
Used where non-reactive, non-sparking materials are required:
Chemical transfer tubing
Sampling and drainage lines
Low-pressure process fluid systems
5. Aerospace non-structural fluid lines
Common for lightweight systems such as:
Fuel transfer lines
Pneumatic and ECS ducts
Condensate and drainage tubes
Bending Performance of 5052-H32 Aluminum Tubes
5052-H32 aluminum is highly regarded for its excellent bending behavior, offering significantly better formability than heat-treatable alloys like 6061-T6.
Even in the hardened H32 condition, it maintains good ductility, enabling tight-radius bending without cracking or distortion. This makes it the preferred grade for fuel lines, HVAC coils, and marine piping where reliable, repeatable bending is essential during installation or assembly.
Wrap up
5052 aluminum seamless tubes offer an ideal balance of strength, corrosion resistance, and formability for marine, automotive, HVAC, and aerospace fluid-handling systems. While 5052 is not as strong as 6061 in terms of tensile and yield strength, it provides superior corrosion resistance and much better bendability, making it the preferred choice for tubing that requires forming, flaring, or long-term exposure to saltwater.
5052-H32 aluminum is also highly weldable—TIG and MIG welding both produce clean, reliable joints with minimal loss of strength in the heat-affected zone. This combination of weldability, non-sparking behavior, smooth internal surfaces, and lightweight performance makes 5052 H32/O tubing a dependable solution for a wide range of fluid systems and structural assemblies.
