2. Bright Finished Cold rolled steel sheets
Bright Finished cold rolled steel sheets are mainly used for products where high gloss is essential after Chrome or Nickel coating.

3. Application Accessories Stationeries Lighting fixtures Tableware
Support pipes of chairs
Steel Furniture

5. Characteristics
Beautiful surface with a minimum roughness
High gloss

6. Mechanical Properties
HrB
Surface Roughness
(Ra)
Gloss
(GS20˚)
Spec
Dongbu SB -
40∼57
0.03∼0.18
400↑
1/8H
50∼71
55∼66
0.05∼0.2 ¼H
65∼80
70∼78
0.08∼0.16
300↑ ½H
74∼89
78∼85 1B
85 min.
90∼97
0.3∼0.5

7. Scope of Manufacturing Filed
SB & 1/8 Hard
1B Full Hard
(mm)
[As rolled products]
(mm)
Thickness
Width
0.25∼0.4
750∼1,219
0.41∼2.0
750∼1,350
Thickness
Width
0.25∼0.3
750∼1,250
0.31∼0.4
750∼1,350
0.41∼1.6
750∼1,600
1.61∼2.0
¼ Hard & ½ Hard
[Oiled products]
(mm)
(mm)
Thickness
Width
0.25∼0.6
750∼1,250
Thickness
Width
0.25∼1.0
750∼1,250

8. Manufacturing Process
Commercial Bright(SB : Standard Bright) & 1/8 Hard
PLTCM
ECL
Annealing
RCL
TPL
DCR
Hot coil
Products
PLTCM : Pickle Line coupled Tandem Cold Rolling Mill
ECL : Electrolytic Cleaning Line
TPL : Temper Process Line
DCR : Double reduced Cold Rolling Mill
RCL : Recoiling Line

9. Products (Oiled Products)
Manufacturing Process
1/4H, 1/2H
PLTCM
ECL
Annealing
RCL
DCR
Hot coil
Products
1B Full Hard
PLTCM
Hot coil
Products(As rolled Full Hard)
Hot coil
PLTCM
ECL
RCL
Products (Oiled Products)