|
|
DIMENSIONS
|
|
|
|
Thickness (mm)
|
Width (mm)
|
|
0.20 - 1.20
|
600 - 1250
|
|
TOLERANCES (THICKNESS/WIDTH)
|
|
|
|
|
Nominal Thickness (t)
|
600 <= Width < 1000
|
1000 <= Width < 1219
|
|
t < 0.25
|
± 0.04
|
± 0.04
|
|
0.25 = t < 0.40
|
± 0.05
|
± 0.05
|
|
0.40 = t < 0.60
|
± 0.06
|
± 0.06
|
|
0.60 = t < 0.80
|
± 0.07
|
± 0.07
|
|
0.80 = t < 1.00
|
± 0.07
|
± 0.08
|
|
1.00 = t < 1.25
|
± 0.08
|
± 0.09
|
|
COIL SPECIFICATIONS
|
|
|
|
I.D. (mm)
|
± 508
|
|
O.D. (mm)
|
800 - 2140
|
|
Max weight (MT)
|
15 MT
|
|
DIMENSIONS
|
|
|
| Commercial Grades |
For General Purpose Applications |
| Drawing Grades |
For Drawing and Forming Applications |
| Structural Grades |
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/m 2 )
|
|
ASTM 525-87 / ASTM 653-96
|
JIS (G 3302 1994)
|
SCB.CGL
|
Average Coating Mass in Spot Test on both surfaces
|
Minimum Coating Mass in Triple Spot Test on both surfaces
|
|
G-90
|
Z 27
|
Z 27
|
275
|
234
|
|
Z 22
|
Z 22
|
220
|
187
|
|
G-60
|
Z 18
|
Z 18
|
180
|
153
|
|
G-40
|
Z 12
|
Z 12
|
120
|
102
|
|
AVAILABLE DIMENSIONS
|
|
|
Nominal Zinc Coating Weight
|
183
|
214
|
244
|
305
|
|
SNI No
|
Minimal Weight-Direct measurement
|
137
|
168
|
198
|
244
|
|
07-2053-1995
|
Minimal Weight-Indirect measurement
|
122
|
153
|
183
|
214
|
|
BJLS
|
Base Metal Thickness (mm)
|
Both Surfaces (g/m 2 )
|
|
20
|
0.20
|
x
|
|
|
|
|
25
|
0.25
|
x
|
|
|
|
|
30
|
0.30
|
|
x
|
|
|
|
35
|
0.35
|
|
x
|
|
|
|
40
|
0.40
|
|
|
x
|
|
|
45
|
0.45
|
|
|
x
|
|
|
50
|
0.50
|
|
|
x
|
|
|
60
|
0.60
|
|
|
|
x
|
|
70
|
0.70
|
|
|
|
x
|
|
80
|
0.80
|
|
|
|
x
|
|
90
|
0.90
|
|
|
|
x
|
|
100
|
1.00
|
|
|
|
x
|
|
110
|
1.10
|
|
|
|
x
|
|
120
|
1.20
|
|
|
|
x
|
|
MECHANICAL PROPERTIES
|
|
|
Quality
|
Mechanical Properties
|
|
Yield Strength (Mpa)
|
Tensile Strenght (Mpa)
|
Elongation (%)
|
Hardness Value Rockwell Scale
|
|
Hard Quality
|
500 - 700
|
570 - 710
|
2 - 5
|
74 - 80 HR30T
|
|
(0.20 up to 0.30 mm)
|
|
|
|
84 - 88 HR15T
|
|
Soft Quality
|
270 - 370
|
350 - 400
|
28 - 38
|
50 - 60 HR30T
|
|
(0.20 up to 1.20 mm)
|
|
|
|
77 - 80 HR15T
|
|
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 |
|
| *) These specification should be agreed upon mutual understanding between the purchaser and the manufacturer |
|
| - 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 |
|
COATING CHEMICAL COMPOSITION
|
|
|
Fe
|
Pb
|
Al
|
Zn
|
|
0.11%
|
0.06%
|
0.13%
|
99.70%
|
|
SURFACE TREATMENT
|
|
|
| Treatment |
Applications |
| UnChromated and Dry |
Phospate and Painting |
| Chromated and Dry |
General Purpose |
|
COATING SURFACE FINISHED
|
|
|
Regular Spangle - Bright
|
|
