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Specialty Steel

Inner Shield(Cold rolled)
The inner shield steel sheet is a cold-rolled steel sheet that is used mainly for magnetic shielding. It is incorporated inside cathode-ray tubes, TV’s and PC monitors to shut out interferences caused by terrestrial magnetic fields.
Recently, inner shield steel sheet with high magnetic permeability, used in large size TV sets and PC monitors, have been heavily developed and promoted.
Superior management of flatness and thickness ensure the thinnest and the most accurate dimensions available. The thickness tolerance of rolling direction/width direction is ±01mm or less. The flatness pitch stands at 600 ~ 1,000mm with a tolerance of 3mm or less.
USAGE

 Main application images

- electrical home appliance apparatuses

 

 
DESCRIPTION
Characteristics
  • - Very thin thickness : 0.15mm
  • - Excellent flatness and thickness tolerance
Thickness(mm) Flatness(mm)
Rolling Direction Crosswise
±0.01 ±0.01 max.3
Mechanical and Magnetic Properties - Dongbu Steel
  • - Very thin thickness : 0.15mm
  • - Excellent flatness and thickness tolerance
 
Class Mechanical Properties Magnetic Properties
T.S(kg/mm) EL Permeablilty μ(0.35) Coercive Force(Oe)
Ordinary 28≤ ≥30 ≥300 ≤2.5
Medium permeability 25≤ ≥20 ≥500 ≤1.8
High permeability 40≤ ≥10 ≥750 ≤1.25

 

Size Availability

Orders Range
Classification Thickness Width
Commercial Quality 0.15 ~1,140
High Permeable Quality 0.13 ~1,040