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Brass
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Bright Finished
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TP, TFS
ERW pipe
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Specialty Metals
Gilsonite
Bright Finished
PRODUCT INTRODUCTION
After the cold-rolling process, cold-rolled steel plates are annealed and temper rolled, a process that uses a work roll with a fine level of surface roughness. The process reduces the surface roughness of bright steel sheet to less than 0.2μRa, giving the sheet a high-gloss surface finish, similar to that of stainless steel sheet.
APPLICATIONS

Products that require a bright, shiny surface after being coated with nickel or chrome such as accessories, ornaments, stationery supplies (binders, clips), dining ware, and light and heat reflectors.
PRODUCT TYPES AND SIZE
Type of Products
Bright finished steel sheet is categorized as both commercial material and hard material. We supplies products in the following sizes.
Type Grade Hardness
(HRB)
Surface Roughness
(μRa)
Gloss
(GS 20°)
Remarks
Commercial material SB 57 and less Max. 0.25 400 and more
Hard material 1/8H (8B) 50 ~ 71
1/4H (4B) 65 ~ 80 250 and more
1/2H (2B) 74 ~ 89
F/H (1B) 85 and more Max. 0.40 -
Size
Type Grade Mechanical Property Surface Roughness
(μRa)
Remarks
Hardness
(HRB)
YP
(kg/㎟)
TS
(kg/㎟)
EL
(%)
Commercial material SB 51.5
(41.0 ~ 57.0)
21.5
(16.8 ~ 26.9)
35.2
(32.0 ~ 38.0)
39.8
(41.0 ~ 59.0)
0.090
(0.03 ~ 0.19)
▶ 4B Product hardness range can be modified
▶ 2B products are also available upon ordering
Hard material 1/8H (8B) 58.9
(55.0 ~ 66.0)
23.7
(20.5 ~ 28.8)
38.8
(35.8 ~ 41.0)
38.3
(35.8 ~ 40.7)
0.094
(0.05 ~ 0.20)
1/4H (4B) 70.0
(66.0 ~ 77.0)
38.4
(35.8 ~ 40.2)
40.8
(39.4 ~ 45.0)
0.095
(0.08 ~ 0.18)
0.095
(0.08 ~ 0.18)
Standard Specification Mechanical Property
Hardness
Temper HRB Hv
KS D 3512
(JIS G 3141)
1/8H 50 ~ 71 95 ~ 130
1/4H 65 ~ 80 115 ~ 150
1/2H 74 ~ 89 135 ~ 185
H ≥85 ≥170
PRODUCTION AVALIABILITY
Commercial Bright Steel Sheet; Hard Bright Steel Sheet (1/8H)
DCR Products (thickness 0.8mm or less)
* Thickness 0.25mm - 0.8mmt, width 750mm - 1250mm
(Note:Thickness 0.20mm is available for 3' products only)

TPL Products (thickness 0.8 mm or more)

* Thickness 0.4mmt - 0.8mmt is available for widths of 1,250mm - 1,600mm
* Thickness 0.3mmt - 0.4mmt is available for widths of 1,250mm - 1,350mm
* Thickness 0.8mmt - 1.6mmt is available for widths of 750mm - 1,600mm
* Thickness 1.6mmt - 2.0mmt is available for widths of 750mm - 1,350mm
Commercial Bright Steel Sheet; Hard Bright Steel Sheet (1/8H)
1/4H, 1/2H: Thickness 0.6mmt or less only
* Thickness 0.2mmt - 0.6mmt, width 750mm - 1,250mm

1B - Full Hard
* Rolled products: HR ⇒ PL-TCM (Pickling line coupled with tandem cold-rolling mill
) ⇒ Products
* In PL-TCM, same size as full hard production
* HR ⇒ PL-TCM (Pickling line coupled with tandem cold-rolling mill) ⇒ ECL (Electrolytic Cleaning Line) ⇒ RCL (Recoiling Line) ⇒ Products
* Thickness 0.25mmt - 1.0mmt, width 750 - 1250mm (Thickness 0.20mmt is available for 3')

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