These are produced with a Guaranteed Minimum Tensile Strength
MINIMUM COATING MASS ON BOTH SURFACES
SCB Galvanized Steel is produced in a range of zinc coating thickness which are specified by coating weight classes in accordance with the prescribed standard. As an example the weight of Zinc coating for JIS G3302-1994 is shown in the following table :
Coating Weight
Specification
Both Surfaces (g/m²)
ASTM 525-87
JIS G
Coating Mass Symbol (SCB/SNI)
Minimum Average Coating Mass at Triple Sports
Minimum Coating Mass at Single Spot
ASTM 653-96
3302 : 2007
G - 90
Z 27
Z 27
275
234
Z 22
Z 22
220
187
Z 20
Z 20
200
170
G - 60
Z 18
Z 18
180
153
Z 14
Z 14
140
119
G - 40
Z 12
Z 12
120
102
Z 20
Z 20
100
85
Available Dimensions
SNI Table
Nomor
Tebal Nominal Logam Dasar (mm)
Simbol Massa Lapisan Seng
01
0.20 - 0.25
Z10, Z12
02
0.30 - 0.35
Z14
03
0.40 - 0.50
Z18
04
0.60 - 1.20
Z20, Z22, Z27
Mechanical Properties
Symbol
Tensile Test
Curvature Test
Hardness (HRB)
Yield Strength, Minimum (N/mm²)
Tensile Strength, Minimum (N/mm²)
Strain, Minimum (%)
Curved Angle (*)
Curb Barb (t)
SGCC
-
-
-
180
0t
Max. 65
SGCH
-
-
-
180
0t
Min. 85
G 250
250
320
25
180
0t
-
G 300
300
340
20
180
1t
-
G 550
550
550
2
180
2t
-
Kind of Product
SNI No. 07-2053-1995 Commercial Quality
ASTM
Specification
Quality
A 526-90
Commercial Quality
A 527-90
Lockforming Quality
A 523-90*
Drawing Quality
A 642-90*
Drawing Quality - Special Killed
A 446-76
Structural Quality
A 653-96
Lockforming Quality, Commercial Steel, Type A, B, C Grade-80, Structural Steel Grade-33, Grade-37
JIS G 3302 (1994)
Specification
Quality
SGCC
Commercial (Soft)
SGCH
Commercial Hard (Full hard)
SGCD 1-2-3*
Drawing Class 1-2-3
SGC 340
Structural
SGC 400*
Structural
* These specification should be agreed upon mutual understanding between the purchaser and the manufacturer
