Micro-channel Aluminum Flat Tubes
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Micro-channel Aluminum Flat Tubes

Micro-channel aluminum flat tube has the characteristics of efficient heat transfer, light weight, high strength, good plasticity, etc. It is widely used in the automotive field, and can be used in automotive engine cooling systems, air conditioning systems, battery radiators, hydraulic system radiators, etc. providing strong support for the performance and comfort of the car.

Why choose Chalco parallel flow aluminium flat tube?

Chalco Aluminum has passed the requirements of the automotive IATF16949 standard audited by BSI (British Standards Institution), providing quality compliance for continuously expanding the automotive product market and achieving high-quality development.

Chalco Aluminum serves Tesla, Ford, Shanghai Automobile, Weilai Automobile, Beiqi New Energy, Changan Automobile and other famous new energy automobile manufacturers. Some models of automotive plate material certification.

automotive supplier

The specification introduction of micro-channel tubes for heat exchanger

Alloy Temper Supply type Dimensions
Size name Size range mm
1050、1100、1197300331023026 H12 Straight plate (neck, no neck) Length L 50.0-6000.0
Coil Coil ID 400-550
Coil OD 700-1500
Coil Width 300-1000
Cross Section Dimensions
Width w Height H Plane wall thickness t1 Thick ribs t2 Side wall thickness t3 Hydraulic diameter De
6.00-60.00 ≤3.50 0.15-0.45 0.15-0.45 0.30-0.80 1.0
Surface treatment type and film layer code of microchannel aluminum flat tube
Surface treatment type Coating code
Arc Spraying Zinc ASZ
roller coating Potassium fluoroaluminate PF
Potassium fluoroaluminate + silicon powder PSF
Potassium fluoroaluminate PZF
Potassium fluoroaluminate + silicon powder PZSF
Surface coating amount
Surface treatment type Coating code Coating amount (or zinc spraying amount)g/ m2
Arc Spraying Zinc ASZ 6.0-12.0
roller coating PF 3.5-6.5
PSF 10.0-14.0
PZF 3.5-6.5
PZSF 8.0-12.0
Main Components of Roller Coatings
Coating code Main component (mass fraction)%
Potassium fluoroaluminate Potassium fluorozincate Silicon
PF 100 - -
PSF 65.1-68.1 - 31.9-34.9
PZF - 100 -
PZSF - 65.1-68.1 31.9-34.9

The mechanical properties of automobile aluminum radiator flat tube

Alloy Temper Tensile Strength Rm MPa Yield Strength Rp0.2 MPa Elongation A50mm %
not less than
1050 H112 60 20 23
1100 75 20 20
3102 75 30 22
3003 95 35 20
3026 85 35 20
Burst pressure of heat exchangers for automotive air conditioners
non electric vehicle electric car
condenser Evaporator
≥11.5 ≥5.5 ≥11.5

The dimensional deviation of micro channel condenser aluminum flat tubes

Cross-sectional dimension deviation
Width Height Plane wall thickness Thick ribs Side Wall Thickness
±0.05 ±0.02 ±0.05 ±0.08 ±0.08
Supply length of straight flat tube and its shrinkage size deviation
category size Allowable deviation
Length L ≤1 000.0 ±0.5
>1 000.0-2 000.0 ±1.5
>2 000.0-6 000.0 ±2.0
end necking For positioning Width W1 ±0.05
Height H1 ±0.03
Neck length L1 ±0.3
Non-positioning Width W1 ±0.1
Height H1 ±0.03
Neck length L1 ±0.5
Longitudinal curvature and longitudinal side curvature of flat tubes
Curvature at the following lengths
Every 300 mm length Overall length (L m)
≤0.3 ≤1.0×L
Twist degree of straight flat tube
Twist on the following overall length (L meters)
L≤1 L>1
≤1.0×L ≤1.0

What are the characteristics of parallel flow aluminum tube?

High thermal conductivity

Due to the existence of the micro-channel structure, the Automobile Aluminum Radiator Flat Tube has a larger surface area and a smaller fluid channel, which makes it have excellent thermal conductivity and can transfer heat out more quickly.

Low fluid resistance

The micro-channel structure can reduce the resistance when the fluid passes through the aluminum flat tube, thereby reducing the pressure drop of the system and improving the efficiency of the entire system.

Lightweight high strength

The aluminum material has high strength and hardness, and the micro-channel structure can reduce the amount of material used, so that the Micro-channel tubes for heat exchanger has the characteristics of light weight and high strength.

Good corrosion resistance

Aluminum material has excellent corrosion resistance and can be used for a long time in humid and corrosive environments.

Can be made into various shapes

Parallel Flow Aluminium Flat Tube can be made into different shapes according to different application requirements, such as straight, curved, circular, etc., with strong plasticity.

Easy maintenance

The aluminum microchannel flat tube adopts a modular design, which is easy to install, disassemble and maintain. It can quickly replace faulty parts and improve the maintenance efficiency of the equipment.

Energy saving and environmental protection

Since the aluminum microchannel tube has the characteristics of high-efficiency heat transfer, it can reduce energy consumption and achieve the purpose of energy saving and environmental protection.

Good security

The Micro-channel tubes adopts a modular design, which is not prone to safety problems such as water leakage, and can guarantee the personal safety of users.

High stability

The Micro-channel Aluminum Tubes adopts advanced manufacturing technology and materials, which can withstand the use in complex environments such as high temperature and high pressure, and has high stability and reliability.

Nice appearance

The Micro-channel Aluminum Flat Tubes adopts a flat design with a beautiful and delicate appearance. It is suitable for installation on some equipment that requires a beautiful appearance and improves the overall aesthetics of the equipment.

Good controllability

The micro-channel structure and internal design of the micro-channel aluminum flat tube can be customized according to the special requirements of customers to achieve precise control of heat dissipation, heat transfer and other performance.

Characteristics of microchannel aluminum flat tubes

Key items for purchasing automotive micro-channel aluminum flat tubes

Material: the material of the Parallel Flow Aluminum Tube is usually pure aluminum or aluminum alloy, and the appropriate material should be selected according to the actual application requirements.

Dimensional specifications: attention should be paid to the dimensional parameters such as the length, width, thickness and internal channel diameter of the Extra wide Parallel Flow Aluminum Flat Tube to ensure compliance with the use requirements.

Appearance quality: the surface of the Parallel Flow Aluminium Flat Tube produced by Chalco Aluminum is flat and free of defects such as oxidation, scratches, and dents.

Material quality: the micro-channel aluminum flat tube produced by Chalco Aluminum adopts strict quality and environmental management system to ensure that it meets ISO 9001 and ISO 14001 certification, IATF16949 certification, etc., and can meet your application needs.

Corrosion resistance: understand the corrosion resistance of Micro-channel tubes for heat exchanger in different environments to ensure their long-term use.

Manufacturer's reputation: the supplier's reputation and service quality are also factors you need to consider. Chalco Aluminum is a supplier with a good reputation and perfect after-sales service to ensure your purchasing experience is pleasant and smooth.

Price: considering the cost of micro-channel aluminum flat tubes, Chalco Aluminum is moderately priced and widely favored by auto parts manufacturers.

Thermal conductivity: you should understand the thermal conductivity performance indicators of the microchannel aluminum flat tube, such as thermal conductivity, thermal resistance and other parameters, in order to select suitable products.

Manufacturing process: understand the manufacturing process of Micro channel condenser Aluminum Flat Tubes, such as molding methods, surface treatment and other processes, so as to understand the manufacturing quality of products.

Application scenarios: suitable Automobile Aluminum Radiator Flat Tube should be selected according to actual application requirements, such as radiators, heat exchangers, and automotive engine cooling systems.

Safety: attention should be paid to the safety performance of Micro-channel tubes for heat exchanger, such as pressure resistance, wear resistance, corrosion resistance, etc., to ensure safety during use.

Technical support and after-sales service: Chalco Aluminum is a supplier and material manufacturer that can provide good technical support and after-sales service to ensure that customers can get timely help and support in the process of purchasing and using.

Packaging and shipping: Chalco Aluminum has fully considered the packaging and shipping methods of micro-channel aluminum flat tubes to ensure that they will not be damaged during shipping.

Key items for purchasing automotive micro-channel aluminum flat tubes

The usage of micro-channel aluminum tubes in the automotive field

Car engine cooling system: aluminum microchannel flat tube can be used as radiators for car engines. Compared with traditional radiators, micro-channel radiators have a better heat dissipation effect and can achieve higher heat dissipation performance in the same size, thereby improving the fuel economy of the car, reducing emissions, and extending the service life of the engine.

Automobile air-conditioning system: aluminum microchannel tube can be used in evaporators and condensers in automobile air-conditioning systems. In the air-conditioning system, the high-efficiency heat transfer characteristics of the micro-channel aluminum flat tube can improve the cooling effect, so that the interior of the car can be cooled more quickly and more evenly, and the efficiency of the air-conditioning system can be improved to reduce fuel consumption and emissions.

Car transmission radiator: the car transmission generates a lot of heat during long-term operation, so a radiator is needed to dissipate the heat. The Micro-channel tubes can be used in the radiator of the automobile transmission. Through its high-efficiency heat transfer characteristics, it can improve the heat dissipation effect and ensure the normal operation of the automobile transmission.

Car turbocharger radiator: a turbocharger is a device that boosts engine output through supercharging, and generates a lot of heat when it runs inside. The Ultra Precision Micro-channel Aluminum Flat Tubes can be used in the radiator of the automobile turbocharger, and through its high-efficiency heat transfer characteristics, the temperature of the turbocharger can be reduced to ensure its normal operation.

Car seat cooling systems: some high-end cars have cooling systems on the seats to provide more comfort in hot weather. The Extra wide Parallel Flow Aluminum Flat Tube can be used in the car seat cooling system, through its high-efficiency heat transfer characteristics, it can improve the cooling effect and ensure the comfort of passengers.

In addition, the Parallel Flow Aluminium Flat Tube can also be used in automotive battery radiators, hydraulic system radiators and other fields to ensure the efficient operation and safety performance of the car.

The usage of micro-channel aluminum tubes in the automotive field

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