Brief Introduction for Cold Rolled Steel Coil

Cold Rolled Steel Coil is steel that has been worked below its recrystallization temperature by passing it between a pair of rollers. Recrystallization temperature is the temperature at which grains in the lattice structure of the metal have been rearranged, leaving it free of strain and deformations. Cold Rolled Steel Coil is pre-treated before being cold rolled with a process known as pickling, which uses strong acids to remove scale and other impurities. The Cold Rolled Steel Coil is then passed through rollers to reduce its thickness. Most cold rolling takes place in multiple passes and as the size of the Cold Rolled Steel Coil is further reduced, its strength and hardness both increase, but its ductility decreases. After cold rolling, heating the metal up in a process known as annealing can restore some of its ductility. The final Cold Rolled Steel Coil may be manufactured in the form of sheets, strips, bars, or other forms.

Superiority of Our Cold Rolled Steel Coil

1. High precision of dimensional tolerance

2. Excellent mechanical property such as the yield strength and tensile strength, etc.

3. Being highly resistant to denting

4.Available in a variety of sizes and shapes with characteristics useful in a wide range of applications
TECHNOLOGY STANDARD FOR ALUMINUM FOIL

Aluminium Air-conditioner Foil
Basic Parameter
Alloy	8011			1030B
Temper	O	H22	H24	O	H22	H24
Tensile Strength(Mpa)	≥85	90~100	110~130	≥95	100~120	120~140
Elongation(%)	≥14	≥12	≥10	≥14	≥12	≥10
Thickness(mm)	0.09~0.18			0.09~0.12
Width(mm)	500~1200
ID(mm)	Φ152.4,Φ505
OD(mm)	Φ700~Φ1600
Cupping	≥5.5