Aluminium sheets, sheets and coils. Aluminium Trading supplies aluminum sheets, sheets and coils to hundreds of industries throughout Southern Africa every month. Metal strength, excellent corrosion resistance and lightweight construction make it a very popular material to meet the modern and complex needs of today’s world. In fact, aluminum has become the second largest metal used on Earth after iron/steel. But we still receive a very common question: “What is the difference between an aluminum plate, a plate and a coil?”welded steel pipe manufacturer
When looking at three aluminum products, the only difference is the thickness. The thickest product is the aluminum plate, then the plate, and finally, the coil is the thinnest. However, the exact thickness of each category depends on several factors. Generally, the thickness of the metal is classified according to the metal, the specification, and even the application.
Historical metal standards – inconsistent?
Before the development of modern, accurate measuring equipment and techniques, “meters” are standards used to classify the thickness of metals, especially wires. Over time, the metals industry has formed its own independent standards. This has led to different specifications for aluminum, copper, brass and many different steel grades. An example of this can be seen in the “Unit of Measurement Dictionary”. The publication defines 10 gauge aluminum as 0.259 cm thick, while 10 gauge standard steel is 0.341 cm and 10 gauge galvanized steel is 0.351 cm.square steel tubing for sale
Due to the confusion caused by the measurement system, the American Society for Testing and Measurement (ASTM) describes this in the specification ASTM A480-10a; “The use of gage numbers is discouraged because it is an ancient term with limited usefulness and no meaning is reached. Consensus.”
Modern measurement of metal thickness
Today, the usual practice is to simply specify the exact thickness of any given product. Although the meter is still listed in the US, the term used in industries in South Africa and Europe has become less and less in recent years.
In the case of South Africa’s aluminum and its alloys, there are still some uncertainties in the exact thickness of the metal when it is classified as sheet, sheet or coil, and most distributors and manufacturers decide these classifications. In the aluminum trade, we offer aluminum sheets with a thickness greater than 4.5 mm, aluminum sheets with a thickness of 0.5 mm to 3 mm, aluminum rolls with a thickness of 0.5 mm to 0.6 mm and aluminum foil with a thickness of approximately 0.29 mm.
In order to prove the difference in thickness between different dealers, we contacted Mr. Kent Bell, Marketing Manager of Hulamin, South Africa, and asked them about the classification of aluminum thickness. Hulamin specializes in rolled aluminum products for precision and high-tech applications and is one of the largest producers of rolled aluminum products in Africa.
Hulamin’s aluminum rolling mill – Pietermaritzburg tinplate suppliers
The classification we received from Hulamin is almost identical to our classification. The classification of Hulamin is as follows:
Foil: <0.29mm, sheet/coil: 0.3mm-6.3mm, board: > 6.3mm
Aluminum sheets are the most commonly used form of metal for a variety of industries, from food and beverage containers to electrical appliances, automotive and general manufacturing. Sheet products are especially suitable for roofs and drains. Aluminum panels are used for more structural and heavy applications such as military, rail and marine transportation.