Cold Rolled Continous Black Annealed Coil

COLD ROLL STEEL COIL

Cold rolled steel is essentially hot rolled steel that has had further processing. The steel is processed further in cold reduction mills, where the material is cooled (at room temperature) followed by annealing and/or tempers rolling. This process will produce steel with closer dimensional tolerances and a wider range of surface finishes. The term Cold Rolled is mistakenly used on all products.All cold products provide a superior surface finish, and are superior in tolerance, concentricity, and straightness when compared to hot rolled.
This process results in higher yield points and has four main advantages:
1.Cold drawing increases the yield and tensile strengths, often eliminating further costly thermal treatments.
2.Turning gets rid of surface imperfections.
3.Grinding narrows the original size tolerance range.
4.Polishing improves surface finish.

COLD ROLL STEEL SHEET.

1)Material:JIS G3141-1996/JFS A2001-1998/EN 10130-1999/DIN 1623-1983/ASTM A1008-02el/GB/T 5213-2001 ISO35741994/SPCC/DC01/St12/SPCD/DC03/SPCD/St13/SPCE/DC04/St14/DDS/SC1/CR3/SPCE/DC05/SC2/DC06
2)Thickness 0.3---2.5mm Width; 600mm-2000mm Length: As request
3)Surface treatment bright annealing / black finish / slit edge or as you require
4)Coil weight: 3-9ton
5)Application: By project where tolerances, surface condition, concentricity, and straightness are the major factors.Stamping press / home appliances / automotive industry / engineering industry / construction/deep drawing cold rolled