Clad Aluminium HF Welded Tubes for Heat Exchangers of Vehicles
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Clad Aluminium HF Welded Tubes for Heat Exchangers of Vehicles

Why choose Chalco?

Chalco Aluminum has successfully met the requirements of the automotive IATF16949 standard audited by BSI (British Standards Institution). This achievement ensures that Chalco Aluminum is compliant with quality standards, enabling it to cater to the ever-expanding automotive product market and foster high-quality development.

Chalco Aluminum proudly serves prominent new energy automobile manufacturers including Tesla, Ford, Shanghai Automobile, Weilai Automobile, Beiqi New Energy, and Changan Automobile. In addition, Chalco Aluminum provides certified automotive plate materials for various vehicle models.Quick Quote

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Comman alloys of clad aluminium tubes and temper

Cladding layer Core material Clad Aluminium Temper
4045
4343
7072 anti-corrosion layers added with zinc as needed
3003
3305
4045/3003 H14 H16 H18
4045/3003/4045
4045/3003/7072
4343/3003/4343
4343/3003
4343/3003/7072
4343/3005/7072

Specifications of clad aluminium welded tubes

Class Cross-Section /mm
Major axis A Minor axis B Side height C Corner Radius R Outside diameter D Room thickness T
Radiator oval tube 12-42 1.35-2.7 1.22.5 1/2 of the side height - 0.22-0.45
Oil cooler oval tube 12-80 2.70-6.00 2.50-5.80 - 0.40-0.80
Intercooler rectangular tube 25-120 4.0-11.0 3.4-10.4 - 0.40-0.60
Parallel Flow Aluminium Round tube - - - ≥2.5 18-34 1.0-1.6

Brazed aluminum pipe

In addition to regular profiles such as round tubes, elliptical tubes, and rectangular tubes, we also offer special-shaped tubes.

If you have any requirements, you can click the contact button to tell us your specific requirements.

Deviation in cross-sectional dimensions

Class cross-sectional /mm
Major axis A Minor axis B Side height C Corner radius R Outside diameter D Room thickness T
Radiator oval tube ±0.05 ±0.10 ±0.05 1/2 of the side height - ±0.01
Oil cooler oval tube ±0.05 ±0.10 ±0.05 - ±0.02
Intercooler rectangular tube ±0.05 ±0.25 ±0.05 ±0.03 - ±0.02
Parallel Flow Aluminium Round tube - - - ±0.05 ±25 ±0.05

Length deviation of clad aluminium welded tubes

Length mm Length deviation mm
<1000 ±0.5
≥1000 ±1.0

Burst pressure of clad aluminium welded tubes

Burst pressure
STD Min 140Kg/cm2
Actual Min 153
Actual AVG. 156
Actual Max 159

Other property of clad aluminium welded tube

Other property
Tensile strength ≥120 Mpa
Elongation ≥2%
Weld reinforcement ≤0.3 mm
Cutting burr height ≤0.10 mm
Side bend per meter of the welded tube ≤1 mm
Curvature per meter of the welded tube ≤1 mm

Cladding aluminium tube is mainly used in condensers, oil coolers, including automotive refrigerators, new energy vehicles, home appliance air conditioners, construction machinery, spacecraft mooring and other heat exchanger cores.Quick Quote

application of brazed aluminum pipe

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