6061 Aluminum Plate VS Other Alloys
The marine grade aluminum sheets should have high specific strength, high specific modulus, excellent welding performance, and good cold and hot forming properties. The general aluminum alloys are 5083, 5086, 5454, 5754, and 6061. In the high-end field of shipbuilding in recent years, 6061 aluminum sheet is one of the main products that cannot be ignored.
The main alloy elements of 6061 aluminum plate are Mg and Si. Sometimes a small amount of copper and zinc are added to improve its strength. This alloy has medium strength, good corrosion resistance, weldability and good overall oxidation effect.
6061 Aluminum sheet manufacturing process includes semi-continuous ingot casting, homogenization, sawing, milling, clad aluminum, heating, hot rolling, annealing, cold rolling, annealing, cold rolling, solution treatment, aging treatment, shearing, leveling, inspection, oiling and package.
As a popular aluminum alloy, what are the differences of 6061 aluminum and other alloys like 6063,7075 and 5083? Both 6061 and 6063 aluminum sheet belong to 6xxx aluminum, 7075 aluminum plate belongs to 7xxx aluminum.
The silicon content of 6061 aluminum plate is between 0.4-0.8 and the magnesium content is between 0.8-1.2, while the silicon content of 6063 aluminum plate is between 0.2-0.6 and the magnesium content is between 0.45-0.9. Different alloy contents indicates their different harness. The hardness of 6061 is higher than that of 6063.
Both 6061 and 6063 are durable aluminum, 7075 aluminum belong to super-durable aluminium, also known as aviation aluminum. Hardness and strength are the main differences between the three.
After heat treatment, 6061 aluminum reaches T6 temper with medium strength, higher than 5083 aluminum. 6061 T651 aluminum is easier to process than 5083 marine grade aluminum. It also has better surface treatment than 5083 aluminum alloy, especially the anodizing effect. However, 5083 marine grade aluminum has better corrosion resistance than 6061 although 6061 also has a certain degree of corrosion resistance.
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