What’s the Difference Between Hot and Cold Rolled Aluminum Coil

The difference between cold rolled aluminum coil and hot rolled aluminum coil is mainly due to the difference in the production process.

Cold rolled is processed by casting machine into casting roll and cold rolling mill. Hot rolling is caused by heating of aluminum ingot. Under the smelting and casting into flat ingots, through the milling surface, homogenized by the hot rolling mill after rolling. Secondly, the difference of raw material, hot rolled billets are casting aluminum ingots – heating – rolling into roll, cold rolled billets are casting and rolling – cold rolling. Moreover, due to the different production processes, resulting in the performance difference between cold rolled aluminum coil and hot rolled aluminum coil. Hot rolled aluminum coil has high surface quality, while mechanical properties and ductility are strong, and oxidation effect is good. Cold rolled aluminum coil mechanical properties is relatively poor, hardness is high, so usually used for the mold.

How to identify hot and cold rolled aluminum coil

Firstly, you can generally determine by visual inspection, usually hot rolled aluminum coil’s surface is more bright.
Secondly, they can be tested by the elongation, usually the elongation of hot rolled aluminum coil is higher than cold rolled aluminum coil.
Moreover, the difference can be seen through the crystal, hot rolling is more than 90% of the thermal deformation of the processing of the organization, and in the hot rolling process for simultaneous recrystallization, so the strip has fine grain, the performance is uniform, and cold Casting Tissue with Dust Cylindrical Distribution in Feather Shape.

Hot and cold rolled aluminum coil type

1. Alloy aluminum coil: (cold rolled and hot rolled)
Aluminum coil model:

1000 series aluminum coil: 1050 aluminum coil,1060 aluminum coil, 1145 aluminum coil, 1100 aluminum coil,;

3000 series aluminum coil: 3003 aluminum coil, 3004 aluminum coil, 3104 aluminum coil,3105 aluminum coil

5000 series aluminum coil: 5005 aluminum coil, 5083 aluminum coil, 5754 aluminum coil, 5052 aluminum coil

8000 series aluminium coil: 8011 aluminum coil,8012 aluminum coil.

Thickness 0.10mm—-20mm
Width 800mm—-2000mm

2. Anti-corrosion and thermal insulation aluminum coil
Material: 1060 3003
Thickness: 0.3-3.0
Width: 1000mm-2500mm

2. Color coated aluminum coil (embossed color-coated aluminum coil)
Thickness: 0.024-1.2
Width: 800mm-2440mm
Material: 1100 1060 3003 5052 aluminum coil roll