4045/3003/4045 Aluminum brazing sheet coil strip for evaporator fin

2023-08-30 11:33:01

Aluminum brazing sheet coil is a composite material composed of different alloy aluminum layers. Due to its composite structure, it can make full use of the advantages of different alloys while meeting the needs of high thermal conductivity and corrosion resistance. Therefore, it is often used in the manufacture of automotive engine water tanks, cooling systems, air conditioning systems, and other applications that require high heat transfer and corrosion resistance.

4045/3003/4045 aluminum brazing sheet is a typical application in brazing composite materials, it is usually used as evaporator fin. This material efficiently transfers heat to the evaporator fins and helps to expedite heat dissipation. Evaporator fins are usually composed of many small, closely packed and thin sheet-like structures, which allow them to have a larger surface area, further improving heat transfer efficiency. The use of aluminum brazed clad plates ensures that the evaporator fins have good durability during use and provide reliable heat transfer performance.

Performance index of evaporator fin material
Alloy Temper Thickness(mm) Tolerance(mm) Clad rate(%) Mechanical property
Tensile Strength (MPa) Yield Strength (MPa) Elongation Min.(%)
3003 H14 0.08~0.12 ±0.005 None 150~200 ≥120 1
Performance index of evaporator board material
Alloy Temper Thickness(mm) Tolerance(mm) Clad rate(%) Mechanical property
Tensile Strength (MPa) Yield Strength (MPa) Elongation Min.(%)
4045/3003/4045 O 0.8~1.2 ±0.03 8~12 100~150 ≥45 27
4343/3003/4343 O 0.4~0.5 ±0.02 8~12 100~150 ≥45 27
4045 can be replaced by 4343/4047etc, according to customer’s requirement.
Alloyspecification and mechanical property can be customized according to different requirement. 


Alloy solidus/liquidus temperature and recommended brazing temperature
Aluminum Alloy Core Brazing Clad
3003 4343 4045 4047
Solidus Temperature /℃ 643 577 577 577
Liquidus Temperature /℃ 654 615 590 580
Recommended Brazing Temperature /℃ 600-620 590-605 580-605


Advantages of Brazing Aluminum Sheet Coil Strip

  1. Brazed aluminum plate has high strength and excellent welding performance; good mechanical property and surface condition.
  2. Brazed aluminum plate has good heat resistance and high temperature resistance, and has a certain corrosion resistance.
  3. Brazing aluminum plate has excellent processing performance, small deformation and easy forming; excellent collapse resistance during brazing.
  4. Brazing aluminum plate is beautiful, there are no pores, cracks and other phenomena in the welding, the surface of the welded joint is bright, and the fillet is even.
  5. Flait Aluminum provides various specifications for fin and brazing aluminum plate coil strip.


Original Sourcehttps://www.flait-aluminum.com/Brazing-aluminum-sheet-coil-strip.html

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