Product | Cold Roller Steel

KIBO STEEL The Pride of Steel Company

Introduction to the cold rolled steel in Kibo Steel Co., Ltd. In the processing of Cold Rolled Steel Sheet having a beautiful surface and an excellent workability. it first removes surface contamination for the cold rolled coil, heats to 600 ~ 850 ℃ from the annealing furnace, maintains for a certain time to get workability and treats surface and improve shapes through control rolling process

COLD ROLLER STEEL

Manufacture Process

HR Coil

Acid Cleaning and Cold Rolling

After removing iron oxide from the surface after cleaning hot rolled coil with acid, trying to roll to the target thickness for securing implementation.

SPM

Electrolytic Cleaning

Prior to the minimum annealing, passing rolling steel sheet into alkaline solution and removing rolling oil and dirt through a chemical reaction

CAL

CAL

During cold rolling, as the processing for softening the hardened materials of steel coil, ensuring the materials and the process through heating→splitting→quenching→annealing

ISPM

ISPM(SKIN PASS MILL)

Adjusting elongation 0.3~3.0% for roughness control and shape modification of the annealed coil

Main Usage

1

General Cold Rolled STEEL Sheet

Pass Mill to be used for general purpose steel for drums, refrigerator doors, furniture manufacturing etc. used in the automotive for Roof, Fender, Hood, Quarter, Oil Pan, Quarter Spring House

2

Structural Steel Sheet

The processing is not required but the intensity is needed for steel structure.

3

High Tension Steel

According to manufacturing methods and end-use, they are categorized as general-purpose, machining, deep drawing, TRIP steels. And among these Standard Edition is used for primarily automotive sheet Rail Lever, Parking Break, deep drawing for main outer fixture such as Fender and Hood and Trip type high tension steel for supplements such as the Door and Bump

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