Aluminum Tubes for Liquid Cooling Systems
Aluminum tubing for liquid cooling systems is available in 6061-T6, 6063, 1050 and 1060 aluminum alloys, with outer diameters of 6–20 mm and wall thicknesses of 0.8–2.0 mm. Combining lightweight construction, high thermal conductivity and good formability, aluminum tubing supports efficient coolant transport and heat transfer in data center liquid cooling systems. It can be manufactured in straight or bent configurations to suit different routing and installation requirements. Optional anodizing, tube forming and custom processing are available according to project drawings and application needs.

Specifications
| Item | Typical Specification |
|---|---|
| Materials | 6061-T6, 6063, 1050, 1060 |
| Outer Diameter | 6–20 mm |
| Wall Thickness | 0.8–2.0 mm |
| Pressure Resistance | Up to or above 2.5 MPa |
| Inner Surface Roughness | Ra ≤ 0.8 μm |
| Surface Treatment | Anodizing, typical film thickness 5–15 μm |
| Available Forms | Straight tubes, bent tubes and custom aluminum profiles |
Applications
Our aluminum tubes serve coolant transport and heat transfer applications in liquid cooling systems:

Cold Plate Supply and Return Lines
Aluminum tubes connect the CDU or manifold to server cold plates, providing lightweight and efficient coolant transport for direct-to-chip liquid cooling systems.

CDU Primary and Secondary Loops
Tubing is used in both primary and secondary sides of the CDU to circulate coolant between the heat exchanger, pump, manifold and rack-level connections.

Manifold-to-Rack Coolant Distribution
Aluminum tubing carries coolant between rack manifolds and individual equipment, supporting flexible routing in rack-level liquid cooling architectures.

Lightweight Aluminum Tubing for Heat Transfer
Aluminum combines low weight and good thermal conductivity, making it suitable for coolant circulation and heat transfer in modern thermal management systems where weight and cost efficiency are important.
Quality Control
Aluminum tubing can be processed according to the required dimensions, shape and system layout. Available processes include tube forming, bending, welding, surface treatment and internal cleaning. Material standards may include GB/T 4437.1 and ASTM B241.
Tube Forming & Bending
Custom straight, bent or shaped aluminum tubing manufactured to project drawings and system layout requirements.
Precision Welding
Controlled welding performed according to product structure and drawing specifications.
Anodizing & Internal Cleaning
Optional anodizing for improved corrosion resistance; internal cleaning requirements can be defined according to the application.
Quality Inspection
Dimensional inspection; pressure and leakage testing; inner surface inspection; cleanliness control; coolant compatibility testing; material traceability.
Customization
We offer comprehensive build-to-print manufacturing services for aluminum tubes and tube assemblies:
Tube Forming & Bending
Custom straight, bent or shaped aluminum tubing manufactured to project drawings and system layout requirements.
Precision Welding
Controlled welding performed according to product structure and drawing specifications, ensuring reliable joints in aluminum tube assemblies.
Anodizing & Internal Cleaning
Optional anodizing for improved corrosion resistance; internal cleaning requirements can be defined according to the application.
Material Traceability & Marking
Material grade, size and heat number can be marked per customer requirements for full batch traceability of aluminum tubes and assemblies.
FAQ
Find answers to common questions about our aluminum tubes for liquid cooling systems.
What materials are available for aluminum liquid cooling tubes?
We supply 6061-T6, 6063, 1050 and 1060 aluminum tubes. Material selection depends on the required strength, thermal conductivity, corrosion resistance and forming requirements.
What sizes and wall thicknesses are available?
Standard outer diameter range is 6–20 mm, with wall thickness 0.8–2.0 mm. Custom dimensions can be produced according to customer drawings and system layout requirements.
What surface treatments are available?
Anodizing is available as an optional surface treatment, with typical film thickness 5–15 μm, to improve corrosion resistance. Inner surface roughness is typically controlled to Ra ≤0.8 μm for clean coolant flow.
Do you provide bent tubes and custom profiles?
Yes. We provide straight tubes, bent tubes and custom aluminum profiles, manufactured to customer drawings. Tubes can be bent, formed and processed as part of a build-to-print tube assembly for liquid cooling systems.