Role in Air Conditioners
8011 aluminum foil is widely used in refrigeration equipment such as air conditioners, freezing equipment, and evaporators. In air conditioning, the foil is mainly used to make heat-conducting fins for the heat exchangers, commonly supplied in the H22, H24, and H26 tempers with a thickness range of 0.08 to 0.2 mm.
Mechanical Properties
Typical mechanical properties of 8011 fin foil are a tensile strength of 125 to 165 MPa, a yield strength of about 110 MPa, and elongation of 2 to 5 percent. The combination provides the stiffness needed for fin forming with adequate ductility for louver and corrugation operations.
Plate Shape Requirements
Air conditioner heat exchanger fins have high requirements for the foil plate shape. The general fin punching production line uses a vacuum suction cup method for foil transfer: if the plate shape is not good and the surface is not flat, the vacuum suction transfer cannot proceed normally. Flat, clean, defect-free foil is therefore essential for automated fin production.
Why 8011 Over Pure Aluminum
The performance of 8011 aluminum foil is better than pure aluminum foil for air conditioner heat exchanger service. The controlled iron and silicon content of the 8011 alloy provides higher strength and stiffness after forming, supporting the thin gauges and dense fin geometry used in modern heat exchangers.
Quality Considerations
The foil must have a flat plate shape, a clean surface, and no defects, with uniform thickness for consistent fin louver formation. Surface treatments such as hydrophilic coating may be applied to improve condensate drainage and reduce air-side pressure drop.
Frequently Asked Questions
Q: What is 8011 foil used for?
Heat-conducting fins in air conditioner heat exchangers.
Q: What tempers are used?
H22, H24, and H26.
Q: What thickness range?
0.08 to 0.2 mm.
Q: What is the tensile strength?
125 to 165 MPa.
Q: Why is plate shape important?
Vacuum suction fin lines fail with poor plate shape.
Q: Can coatings be applied?
Yes, hydrophilic coatings improve condensate drainage.
For 8011 fin foil quotations, contact our sales team.