China Round Aluminum Tube Manufacturer, Companies

1 / 1

China Round Aluminum Tube Manufacturer, Companies

Round aluminum tube, a versatile hollow cylindrical aluminum product, is manufactured through extrusion, drawing, or rolling processes using pure aluminum or aluminum alloys as raw materials. It integrates aluminum's inherent advantagesâ€”light weight, excellent corrosion resistance, high thermal conductivity, and superior formabilityâ€”with the structural benefits of hollow design (high strength-to-weight ratio, material saving). As a fundamental component in industrial, architectural, and consumer sectors, it is widely applied in construction, transportation, machinery manufacturing, and daily necessities

Send Inquiry

Product Description

Key Specifications

Round aluminum tube specifications are customized based on application scenarios, with alloy type, diameter, wall thickness, and precision being core parameters:

Specification Category	Detailed Parameters	Typical Alloys	Typical Applications	Quality Control Requirements
Outer Diameter (OD)	Small: ≤ 20mm	1060, 3003, 6061	Electrical conductors, medical instruments, small heat exchangers	Tolerance ±0.05mm, no surface scratches
	Medium: 20mm - 200mm	3003, 5052, 6063, 6061	Architectural handrails, furniture frames, automotive parts, hydraulic tubes	Tolerance ±0.1mm, straightness ≤ 0.5mm/m
	Large: ≥ 200mm	5083, 6061, 7075	Industrial pipelines, marine structures, architectural columns	Tolerance ±0.2mm, wall thickness uniformity ≤ 5%
Wall Thickness (WT)	Thin: ≤ 1mm	1060, 3003	Heat exchange fins, decorative tubes, small containers	Thickness tolerance ±0.03mm, no pinholes
	Medium: 1mm - 10mm	3003, 5052, 6061	Handrails, automotive exhaust pipes, furniture, general machinery	Thickness tolerance ±0.05mm, weld strength ≥ 80% of base metal (for welded tubes)
	Thick: ≥ 10mm	5083, 6061, 7075	Load-bearing structures, marine components, high-pressure pipelines	Tensile strength ≥ 250MPa, impact toughness ≥ 20 J/cm²
Alloy Types	Pure Aluminum (1xxx Series)	1060, 1100 (99.6%/99.0% Al)	Electrical conductors, heat exchangers, decorative applications	High conductivity, good corrosion resistance, low strength
	Non-Heat-Treatable Alloys (3xxx, 5xxx)	3003 (Mn), 5052 (Mg), 5083 (Mg-Mn)	Marine parts, chemical pipelines, architectural structures	Excellent corrosion resistance, good weldability
	Heat-Treatable Alloys (6xxx, 7xxx)	6061 (Al-Mg-Si), 6063 (Al-Mg-Si), 7075 (Al-Zn-Mg-Cu)	Aerospace components, automotive parts, high-load structures	High strength after heat treatment, good machinability

Typical Applications

Round aluminum tube's versatility makes it a staple in multiple industries, driven by its unique combination of strength, weight, and functionality:

Architectural & Construction
Used for handrails, balustrades, curtain wall supports, ceiling frames, and decorative columns. Its lightweight reduces structural load, while anodized or coated surfaces enhance aesthetics and durability.
Transportation Industry
Applied in automotive (exhaust pipes, fuel lines, frame components), aerospace (hydraulic tubes, structural parts), marine (hull supports, piping systems), and railway (interior trim, cooling tubes). Its light weight improves fuel efficiency.
Mechanical & Industrial Equipment
Used in heat exchangers (air conditioners, refrigerators, industrial coolers), hydraulic and pneumatic pipelines, conveyor rollers, and machine frames. Its thermal conductivity and corrosion resistance ensure reliable performance.
Electrical & Electronics
Used as electrical conductors (power transmission lines, bus bars), heat sinks for electronic devices, and casings for electrical equipment. Its conductivity and lightweight meet efficiency requirements.
Consumer Products
Found in furniture (chair frames, table legs), sports equipment (bicycle frames, tent poles), kitchenware (cookware handles, ventilation tubes), and decorative items. Its formability and aesthetics cater to diverse design needs.
Medical & Pharmaceutical
Used in medical instruments (surgical tools, diagnostic equipment components) and pharmaceutical pipelines. Its corrosion resistance and easy sterilization meet hygiene standards.

Advantages Over Alternative Materials

Compared with traditional materials like steel, copper, and plastic tubes, round aluminum tube offers distinct competitive advantages:

Alternative Material	Advantages of Round Aluminum Tube	Key Reason
Steel Tube	Lighter (1/3 weight), better corrosion resistance (no rust without coating), higher thermal conductivity, easier processing	Steel is prone to rust and heavier; aluminum's natural oxide film and low density reduce maintenance and transportation costs.
Copper Tube	Lower cost (1/2-1/3 of copper), lighter weight, more abundant resources, better formability for complex shapes	Copper is expensive and scarce; aluminum meets most conductivity/thermal requirements at a lower cost.
Plastic Tube	Higher strength, better heat resistance (withstands -40°C to 150°C vs. plastic's 60-100°C), non-toxic (no chemical leaching), recyclable	Plastic is brittle at low temperatures, degrades at high temperatures, and is non-recyclable in many cases.
Brass Tube	Lighter, lower cost, better corrosion resistance in marine environments, easier to recycle	Brass is heavy, contains lead (environmentally hazardous), and has higher production costs.

Detail Images

Detail 1

Detail 2

Detail 3

Frequently Asked Questions (FAQ)

What are the primary specifications of round aluminum tubes?

Round aluminum tubes are classified by outer diameter (OD), wall thickness (WT), and alloy type. Sizes range from small outer diameters (≤ 20mm) to large diameters (≥ 200mm), and wall thicknesses from thin (≤ 1mm) to thick (≥ 10mm), depending on standard or customized requirements.

Which aluminum alloys are most commonly used for tubing?

Typical alloys include the 1xxx series (pure aluminum like 1060/1100) for electrical conductivity, non-heat-treatable 3xxx/5xxx series (like 3003, 5052, 5083) for marine and structural corrosion resistance, and heat-treatable 6xxx/7xxx series (like 6061, 6063, 7075) for high-strength industrial and aerospace applications.

How does a round aluminum tube compare to a steel tube?

Aluminum tubes are approximately one-third the weight of steel, provide superior natural corrosion resistance without additional paint coatings, possess better thermal conductivity, and are significantly easier to process and shape.

Can round aluminum tubes be used for high-temperature applications?

Yes, aluminum tubes can reliably withstand temperature ranges from -40°C up to 150°C. This makes them far superior to plastic tubes, which often degrade, leach chemicals, or become brittle at temperatures beyond 60°C to 100°C.

Why are aluminum tubes preferred over copper tubes in heat exchangers?

While copper offers high thermal conductivity, aluminum tubes are about 1/2 to 1/3 of the cost and significantly lighter. Aluminum offers an excellent balance of heat transfer efficiency, weight reduction, and cost-effectiveness.