How to distinguish between hot-rolled aluminum and cold-rolled aluminum

(1) If it is a cold-rolled or hot-rolled product, the surface of the hot-rolled product is usually brighter.

(2) Electron microscope analysis can not be out, crystal can see the difference.

(3) Visual inspection can be roughly judged, the simple way is to test the elongation.

Other differences:

(1) Price: cold-rolled aluminum sheet process is simple, the price is cheaper than hot-rolled aluminum sheet;

(2) Different properties: hot rolled aluminum plate surface quality is good, mechanical properties and ductility is strong, good oxidation effect;

(3) Different uses: cold-rolled aluminum plate is mostly used for mold, hot-rolled aluminum plate is suitable for stamping and drawing;

(4) The difference between the finished product: usually the elongation of the cold-rolled final product is lower than that of the hot-rolled final product.