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The Difference between 2A12 and 6061 Aluminum Plate

2A12 6061 and belong to the heat treatment of aluminum alloy, both after heat treatment from the appearance it is difficult to distinguish, due to both the huge price difference, a gap of nearly more than 10000 Yuan / ton, so the 6061 to impersonate 2A12 sales market, many dealers used, how can distinguish between the two on to users is a problem?
 
One, hardness: 6061 after heat treatment, the hardness of the 90HB, and 2A12 is able to reach the vicinity of 120HB, the difference between the two of the larger, if you have brightness measurement equipment, can measure the hardness.
 
Second, density: if you don't have a hardness tester, then there is a simple solution, both density difference is larger, 6061 density can reach 2.7, and 2A12 due to the high content of copper alloy, the density can reach the vicinity of 2.78-2.79, can according to the aluminum weight calculation formula to compute the density of product.
 
Weight formula: thickness (mm) * density (2.7/2.78) * length (m) * width (m) = weight
 
Look at the weight of the final product, which will be the difference.

Three, if there is doubt; it can be detected by the third party, after the element analysis instrument to analyze the content of the alloy elements and then to the national standard alloy content can be drawn.
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