1145 alloy aluminum foil and its sister alloy 1235 have a minimum aluminum content of 99.45%, and the chemical and physical properties are almost the same. Occasionally, some production batches can be double-certified for 1145 and 1235 alloys. Like 1100 aluminum alloys, both are considered commercially pure alloys with excellent formability.
Due to the high aluminum content, aluminum alloy 1145 conducts even better than 1100 alloy. On the other hand, 1145 alloy is less and less on the market as many people find 1235 alloy more readily available as it responds equally well in most applications.
1145 aluminum has the advantages of high formability, good electrical conductivity, lightweight and corrosion resistance. Aluminum foil 1145 is commonly used in capacitors, food packaging, printing foils, beauty salons, electrical appliances, batteries and households, etc.
The 1145 aluminum foil belongs to 1000 series, which is essentially pure with a aluminum content of 99%, which is widely applied in chemical industry and scientific experiment.
What is the composition of aluminum 1145?
Both 1100 and 1145 are aluminum alloys commonly used in a variety of applications, including foil production. While they share some similarities, there are also differences that make them suitable for specific purposes. Below is a comparison of 1100 and 1145 aluminum foil:
Aluminum foil alloy composition:
1100 Aluminum Foil: This alloy is known for its high purity, with an aluminum content of approximately 99.0%. It’s almost entirely aluminum, so it’s soft and easy to work with. Has excellent corrosion resistance and thermal conductivity. 1145 Aluminum Foil: This alloy is also high in aluminum, usually around 99.45%. Like 1100, it has high purity, good formability and corrosion resistance.
Aluminum foil application:
1100 Aluminum Foil: Because of its softness and high purity, 1100 aluminum foil is often used in applications where ductility and corrosion resistance are important, such as packaging, kitchen foil, and capacitor manufacturing. 1145 Aluminum Foil: This alloy is often used in applications requiring high electrical conductivity. It is commonly used in transformer windings, capacitors, and other electrical applications.
Aluminum foil conductivity: 1100 Aluminum Foil: While aluminum alloys have good electrical conductivity, they are less conductive than alloys specifically designed for electrical applications. 1145 Aluminum Foil: This alloy is known for its excellent electrical conductivity due to its high aluminum content and purity. It is used when high conductivity is the main requirement. Aluminum foil strength and mechanical properties:
Both 1100 and 1145 aluminum foils are relatively soft and have low strength compared to other aluminum alloys. They are generally not used in applications requiring high mechanical strength. Cost and Availability:
The main difference between 1100 and 1145 aluminum foil is their specific application. 1100 is better suited for general purpose applications where ductility and corrosion resistance are important, such as packaging and kitchen foils. 1145, on the other hand, was chosen for its high conductivity and is often used in electrical applications such as transformers and capacitors.
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