mill finished surface aluminium coil for roofing sheets

production line.

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.

Packing:

Our company has well-equipped facility including many kinds of advanced aluminum making machines, such as continuous casting and rolling line,aluminium foil production line,separator,tension leveler and  annealing production line

Aluminium foil production line:

Continuous casting and rolling line:

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

If you want to see more products of our company,

you can surf our web site: http://xinren.preview.alibaba.com/