Aluminum hard ingot is the ingot form of aluminum strengthened by adding certain elements and minerals to soft pure aluminum. After the inherently soft aluminum is strengthened by the elements, the hardness of the metal increases, but this support is not limited to this and the corrosion resistance of aluminum is also strengthened. 7075-T651 is an aluminum hard ingot that is extremely strong, extremely hard and has good corrosion resistance. Aluminum hard scrap is converted into hard ingot after necessary processes.