Automotive Brazing Clad Aluminum Coil
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Automotive Brazing Clad Aluminum Coil

Chalco Aluminum produces Automotive Brazing Composite Aluminum Coil. It is a composite material composed of two or more different metal materials. This aluminum coil usually consists of alternating layers of aluminum and other metals to provide excellent mechanical properties and corrosion resistance. which is widely used as such as radiators, condensers, evaporators, and heat exchangers.

auto radiator

Main alloy grades for auto brazing composite aluminum coil

3000 series: such as 3003, 3103, etc., have good corrosion resistance and formability, and are suitable for the manufacture of air-conditioning equipment, radiators and other auto parts.

4000 series: such as 4045, 4343, etc., have excellent brazing performance and strength, and are suitable for manufacturing automotive radiators, condensers and other parts.

5000 series: such as 5052, 5182, etc., have good formability and corrosion resistance, and are suitable for manufacturing automobile body panels, doors and other components.

6000 series: such as 6061, 6063, etc., have good strength, wear resistance and corrosion resistance, and are suitable for manufacturing automotive engine parts, body structures, etc.

7000 series: such as 7072, etc., have high strength, corrosion resistance and fatigue resistance, and are suitable for manufacturing high-strength components such as automotive braking systems and suspension systems.

Size of auto brazing composite aluminum coil

Brazing alloy Core alloy Temper Cladding % Thicknes (mm) Wdith(mm) ID OD
4A13, 4A17, 4A43, 4A45, 4004, 4045, 4047, 4104, 4343 3A11, 3B11, 3003, 3005, 6A02, 6060, 6063, 6951, 7A11, 7072 O, H12, H22, H14, H24, H16, H26, H18 3.0-25.0 0.050-6.000 7.0-1600.0 75.0, 150.0 , 200.0, 250.0, 300.0, 400.0, 405.0, 500.0, 505.0 450.0-2500.0
Width(mm) Tolerance (mm)
7.0-100.0 >100.0-300.0 >300.0-900.0 >900.0-1 400.0
>0.200-0.240 ±0.1 ±0.2 ±0.3 ±0.5
>0.240-0.400 ±0.1 ±0.2 ±0.3 ±0.5
>0.400-0.800 ±0.1 ±0.2 ±0.5 ±0.8
>0.800-1.500 ±0.1 ±0.3 ±0.8 ±1.0
>1.500-2.000 ±0.2 ±0.3 ±0.8 ±1.2
>2.000-3.000 ±0.3 ±0.4 ±1.0 ±1.2
>3.000-6.000 ±0.4 ±0.5 ±1.2 ±1.5
Thickness Glitch Split level Tower shape
0.050-0.100 ≤0.030 ≤0.4 ≤4
>0.100-0.200 ≤0.040 ≤0.5 ≤4
>0.200-0.400 ≤0.050 ≤1.0 ≤5
>0.400-1.000 ≤0.080 ≤2.0 ≤5
>1.000-2.000 ≤0.150 ≤2.5 ≤5
>2.000-6.000 ≤0.200 ≤3.0 ≤5
ID(mm) Tolerance(mm)
75 ±0.5
150.0, 200.0, 250.0 ±1.0
300.0, 400.0, 405.0, 500.0, 505.0 ±2.0
Burrs, split layers, and tower shapes of composite tapes for pipe making
Thickness (mm) Glitch Split level Tower shape
>0.200-0.300 ≤0.010 ≤0.5 ≤2
>0.300-0.600 ≤0.015 ≤1.0 ≤3
>0.600 ≤0.020 ≤1.0 ≤3

Mechanical properties of auto brazing composite aluminum coil

Alloy Temper Thickness(mm) Tensile strength Rm N/mm2 R p0.2N/ mm2 Elongation A50mm%
Brazing core
4A13
4A17
4A43
4A45
4045
4047
4343
3A11
3B11
3003
3005
7A11
7072
O 0.050-0.100 95-160 35 6.0
>0.100-0.200 10.0
>0.200-1.300 18.0
>1.300-6.000 20.0
H12 0.050-0.100 120-170 90 1.0
>0.100-0.200 3.0
>0.200-1.300 4.0
>1.300-6.000 5.0
H22 0.050-0.100 120-170 80 2.0
>0.100-0.200 6.0
>0.200-1.300 6.0
>1.300-6.000 7.0
H14 0.050-0.100 150-200 125 0.5
>0.100-0.200 1.0
>0.200-1.300 2.0
>1.300-6.000 5.0
H24 0.050-0.100 150-200 115 1.0
>0.100-0.200 3.0
>0.200-1.300 3.0
>1.300-6.000 5.0
H16 0.050-0.100 170-230 150 0.5
>0.100-0.200 1.0
>0.200-1.300 1.0
>1.300-6.000 2.0
H26 0.050-0.100 170-230 140 1.0
>0.100-0.200 1.0
>0.200-1.300 2.0
>1.300-6.000 3.0
H18 0.050-0.100 200 170 0.5
>0.100-0.200 0.5
>0.200-6.000 1.0
4004
4104
3A11
3B11
3003
3005
7A11
7072
O 0.050-0.100 95-165 35 6.0
>0.100-0.200 10.0
>0.200-1.300 18.0
>1.300-6.000 20.0
H12 0.050-0.100 125-205 90 1.0
>0.100-0.200 2.0
>0.200-1.300 3.0
>1.300-6.000 6.0
H22 0.050-0.100 125-205 80 2.0
0.100-0.200 2.0
>0.200-1.300 3.0
>1.300-6.000 7.0
H14 0.050-0.100 145-225 125 0.5
>0.100-0.200 1.0
0.200-1.300 2.0
>1.300-6.000 4.0
H24 0.050-0.100 145-225 115 2.0
>0.100-0.200 2.0
>0.200-1.300 3.0
>1.300-6.000 5.0
4004, 4045, 4104, 4343 6A02, 6060, 6063, 6951 O 0.200-6.000 160 85 16.0
Mechanical properties of composite tapes for pipe making
Alloy Temper Thickness (mm) Tensile strength Rm N/mm2 R p0.2 N/ mm2 Elongation A50mm%
Brazing core
4A13, 4A17, 4A43, 4A45, 4004, 4045, 4047, 4104, 4343 3B11, 3003, 3005, 7072 H14 >0.200-1.300 160-230 150 0.5
>1.300-3.000 1.0
H16 >0.200-1.300 160-220 140 0.5
>1.300-3.000 1.0

Uses of auto brazing composite aluminum coil

  • Radiator
  • Condenser
  • Evaporator
  • Heat exchanger
  • Air conditioner
  • Battery cooler
  • Engine cooler
  • Fuel radiator
  • Hydraulic oil radiator
  • Heat exchanger
  • Other automotive cooling system components

Application of Brazed Composite Aluminum coil

Product features of auto brazing composite aluminum coil

High strength: due to the harshness of the environment in which the car is used, the brazed composite aluminum coil for the car needs to have high strength to withstand the pressure of high-speed driving and sudden impact. Alloy The core layer is a high-strength aluminum alloy that provides the strength and durability needed.

Good corrosion resistance: cars are often driven in harsh environments, such as high temperature, high humidity, rain, etc. Therefore, automotive brazing composite aluminum coils need to have good corrosion resistance to prevent oxidation and corrosion. Aluminum-silicon alloy cladding provides good corrosion resistance and makes brazed joints more durable.

Excellent thermal conductivity: the heat dissipation system of a car requires efficient heat dissipation to ensure the normal operation of the engine and other critical components. Automotive Brazed Clad Aluminum Coil has excellent thermal conductivity, allowing heat to be transferred quickly to the environment.

Excellent formability: auto brazing composite aluminum coils can be processed in a variety of ways, such as curling, bending, cutting, etc., and can be customized according to the needs of different auto parts.

Lightweight: brazing composite aluminum coils for automobiles have low density and good strength, which can achieve the purpose of lightweight automobiles, thereby improving the fuel economy and environmental protection of automobiles.

features of brazed composite aluminum coil

Precautions for use of automotive brazing composite aluminum coil

During the operation, the aluminum coil should be prevented from being impacted or subjected to excessive force, so as not to affect the surface quality and performance of the aluminum coil.

During the operation, the aluminum coil should be protected from high-temperature heat sources to avoid deformation or melting of the aluminum coil.

When using flux for brazing operations, attention should be paid to the quality and composition of the flux so as not to affect the welding effect.

When manufacturing automotive cooling system components, material selection and processing technology selection should be carried out according to design requirements and standards to ensure the safety and reliability of components.

When storing and transporting aluminum coils, the aluminum coils should be protected from vibration, collision and moisture, so as not to affect the surface quality and performance of the aluminum coils.

When using automotive brazing composite aluminum coils, relevant safety operating procedures and operating instructions should be followed to ensure the safety of personnel and equipment.

Precautions for use of automotive brazing composite aluminum coil

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