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  • HOME > Products > Steel & Alloy Steel > GI (Galvanized Steel Sheet)
  • GI (Galvanized Steel Sheet)

GI ( Galvanized Steel Sheet )

Size Availability
Thickness (mm) 0.23 ~ 2.30
Width (mm) 500 ~ 1,270
Sheet Length (mm) 600 ~ 5,000
Coil Weight (Max.) 22.5 M/T
Coating Weight (Both Sides) 76 ~ 720 g/㎡
Coil Inner Diameter (mm) 508,610
Kinds of coating
- Regular spangle
- Minimized spangle
- Zero spangle
- Galvannealed
- Differential coating
Finish
- Phosphatized
- Extra smooth ( skin passed )
- Chemical treatment ( chromated )
- Oiled

Designation and Mechanical Requirements

Hot-Rolled base metal used
Designation Thickness
(mm)
Yield Point
Min. (N/㎟)
Tensile Strength
Min. (N/㎟)
Elongation
Min. (%)
Test Piece
SGHC 1.6 ~ 6.0 - - - No. 5 Cut in
Rolling Direction
SGH340 245 340 20
SGH400 295 400 18
SGH440 335 440 18
SGH490 365 490 16
SGH540 400 540 16
Cold-Rolled base metal used
Designation Thickness
(mm)
Yield Point
Min. (N/㎟)
Tensile Strength
Min. (N/㎟)
Elongation
Min. (%)
Test Piece
Nominal Thickness Min.
0.25 to 0.40
under
0.40 to 0.60
under
0.60 to 1.0
under
1.0 to 1.6
under
1.6 to 2.5
under
2.5 and
over
SGCC 0.25 ~ 3.2 - - - - - - - - No. 5 Cut in
Rolling Direction
SGCD1 0.40 ~ 2.3 - 270 - 34 36 37 38 -
SGCD2 - 270 - 36 38 39 40 -
SGCD3 0.60 ~ 2.3 - 270 - 38 40 41 42 -
SGC340 0.25 ~ 3.2 245 340 20 20 20 20 20 20
SGC400 295 400 18 18 18 18 18 18
SGC440 335 440 18 18 18 18 18 18
SGC490 365 490 16 16 16 16 16 16
SGC570 0.25 ~ 2.0 560 570 - - - - - -

Weight of Zinc Coating

Zinc Coating Designation Z 08 Z 10 Z 12 Z 18 Z 20 Z 22 Z 25 Z 27 Z 35 Z 45 Z 60
Minimum Weight of
Zinc Coating (g/㎡)
80 100 120 180 200 220 250 275 350 450 600
Remarks
1. The minimum weight of zinc coating mentioned above indicates the minimum weight of zinc coating on both sides of
     sheet or coil.
2. The expresses the average measured weight of zinc coating of triple spot test pieces cut from the test sheet.