According to major international standards for identifying Hot Dipped Zinc Coated Galvanized Sheets , in the following you will find the comparison chart for the most important of them .
Way of nomination cold rolled steel in JIS G 3141
- The sign of quality
- The sign of tempering
- The sign of surface finishing
- Production number
- Dimension
- Weight of sheet
- The name of the factory
Preamble |
Sign |
|
Commercial quality |
SPCC |
Symbol of quality |
Drawing Quality |
SPCD |
Deep drawing quality |
SPCE |
--- |
A |
As annealed |
Temper Grade |
--- |
S |
Standard temper grade |
--- |
8 |
1/8 Hard |
--- |
4 |
1/4 Hard |
--- |
2 |
1/2 Hard |
--- |
1 |
Full Hard |
It has a rough surface which is produced chemically or mechanically. |
D |
Dull Finish |
Surface Finish |
It has a smooth surface. |
B |
Bright Finish |
Example SPCC-SD: SPCC is the sign of sheet grade, S stands for temper grade and D stands for surface finishing.
Cold rolled Standard JIS G 3141-1996
Chemical Composition |
Elongation |
Tensile Strength
(N/mm2) |
Sign |
Grade |
Mn |
S |
P |
C |
t> 5/2 |
6/1 <t< 5/2 |
1 <t< 6/1 |
1 <t< 6/0 |
4/0 <t< 6/0 |
25/0 <t< 4/0 |
25/0 <t |
5/0 |
045/ |
04/ |
12/0 |
39 |
38 |
37 |
36 |
34 |
32 |
270 |
SPCC |
Commercial Quality |
45/0 |
035/ |
035/ |
1/0 |
41 |
40 |
39 |
38 |
36 |
34 |
270 |
SPCD |
Drawing Quality |
4/0 |
03/ |
03/ |
08/0 |
43 |
42 |
41 |
40 |
38 |
36 |
270 |
SPCE |
Deep drawing Quality |
- Sample should be choosing from rolling direction.
- Result of tensile test can not be used for SPCC.
Hardness(max) |
Symbol |
Temper Grade |
HV |
HRB |
105 |
57 |
A |
As-annealed |
115 |
65 |
S |
Standard temper grade |
130-95 |
71-50 |
8 |
1/8 hard |
150-115 |
80-65 |
4 |
1/4 hard |
185-135 |
89-74 |
2 |
1/2 hard |
170 |
85 |
1 |
Full hard |
(JIS G 3302-98 Hot)
Classification and Designation
| Application |
Colled-Roll base metal used |
Hot-rolled base metal used |
| Classified symbol |
Nominal thickness mm |
Classified symbol |
Nominial thickness mm |
| Commercial |
SGCC |
0.25 and over,up to and incl. 3.2 |
SGHC |
1.6 and over,up to and incl. 6.0 |
| Commercial,Hard |
SGCH |
0.11 and over,up to and incl. 1.0 |
--- |
--- |
| Drawing |
Class1 |
SGCD1 |
0.40 and over,up to and incl. 2.3 |
--- |
--- |
| Class2 |
SGCD2 |
0.60 and over,up to and incl. 2.3 |
--- |
--- |
| Class3 |
SGCD3 |
0.25 and over,up to and incl. 2.3 |
--- |
--- |
| Structural |
SGC340 |
0.25 and over,up to and incl. 3.2 |
SGHC 340 |
1.6 and over,up to and incl. 6.0 |
| SGC400 |
0.25 and over,up to and incl. 3.2 |
SGHC 400 |
1.6 and over,up to and incl. 6.0 |
| SGC440 |
0.25 and over,up to and incl. 3.2 |
SGHC 440 |
1.6 and over,up to and incl. 6.0 |
| SGC490 |
0.25 and over,up to and incl. 3.2 |
SGHC 490 |
1.6 and over,up to and incl. 6.0 |
| SGC570 |
0.25 and over,up to and incl. 2.0 |
SGHC 540 |
1.6 and over,up to and incl. 6.0 |
Weight of zink coating
1-Non- alloyed
| Classification |
Symbol |
| (Z06) |
Z08 |
Z10 |
Z12 |
Z18 |
Z20 |
Z22 |
Z25 |
Z27 |
Z35 |
Z45 |
Z60 |
| Average coating mass in triple-spot test on both surface |
(60) |
80 |
100 |
120 |
180 |
200 |
220 |
250 |
275 |
350 |
450 |
600 |
| Minimum coating mass at a single spot on both surface |
(51) |
68 |
85 |
102 |
153 |
170 |
187 |
213 |
234 |
298 |
383 |
510 |
- Note ( Shall be as agreed upon between the purchaser and the manufacturer.)
2-alloyed
| Classification |
Symbol |
| (F04) |
F06 |
F08 |
F10 |
F12 |
(F18) |
| Average coating mass in triple-spot test on both surface |
(40) |
60 |
80 |
100 |
120 |
(180) |
| Minimum coating mass at a single spot on both surface |
(34) |
51 |
68 |
85 |
102 |
(153) |
- Note ( Shall be as agreed upon between the purchaser and the manufacturer.)
3-Mechanical properties
3-1.Bending-Bend Angle:180
| aNominal thickness |
up to 1.6mm |
1.6mm and over up to 3.0 mm |
3.0mm and over |
| Base metal used |
| Hot-rolled base metal |
Hot-rolled base metal |
Z27
Max |
Z35 |
Z27,
Z60 |
Z27
Max |
Z35 |
Z45 60 |
Z27,
Max |
Z35 |
Z45,
Z60 |
| SGHC |
SGCC |
1 |
1 |
2 |
1 |
2 |
2 |
2 |
2 |
2 |
| --- |
SGCH |
---- |
--- |
--- |
--- |
--- |
--- |
--- |
--- |
--- |
| --- |
SGCD 1 |
1 |
---- |
---- |
1 |
---- |
---- |
---- |
---- |
---- |
| -------------------- |
SGCD2 SGCD3 |
0 |
---- |
---- |
0 |
---- |
---- |
---- |
---- |
---- |
| |
SGC 340 |
1 |
1 |
2 |
1 |
1 |
2 |
2 |
2 |
3 |
| |
SGC 400 |
2 |
2 |
2 |
2 |
2 |
2 |
3 |
3 |
3 |
SGH 440 SGH 490 SGH 540 |
SGC 440 SGC 490 -------- |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
| |
SGC 570 |
----- |
---- |
---- |
---- |
---- |
---- |
---- |
---- |
---- |
3-2.Min.Vale for yield point , Tensile Strengh and Elongation
| Base metal used |
Classified symbol |
Yield point N/mm2 Min. |
Tensile Strength N/mm2 Min |
Elongation%,Min. |
Test Piece |
| Normal thickness mm |
| 0.25 and over, up to 0.40 |
0.40 and over, up to 1.0 |
0.60 and over, up to 1.0 |
1.0 and over, up to 1.6 |
1.6 and over, up to 2.5 |
0.25 and over, |
| Cold-rolled base metal |
| SGCC |
| SGCD |
| SGCD1 |
| SGCD2 |
| SGCC3 |
| SGCC340 |
| SGCC400 |
| SGCC440 |
| SGCC490 |
| SGCC570 |
|
| --- |
| --- |
| --- |
| --- |
| --- |
| 245 |
| 295 |
| 335 |
| 365 |
| 560 |
|
| --- |
| --- |
| 270 |
| 270 |
| 270 |
| 340 |
| 400 |
| 440 |
| 490 |
| 570 |
|
| --- |
| --- |
| --- |
| --- |
| --- |
| 20 |
| 18 |
| 18 |
| 16 |
| --- |
|
| --- |
| --- |
| 34 |
| 36 |
| 38 |
| 20 |
| 18 |
| 18 |
| 16 |
| --- |
|
| --- |
| --- |
| 36 |
| 38 |
| 40 |
| 20 |
| 18 |
| 18 |
| 16 |
| --- |
|
| --- |
| --- |
| 37 |
| 39 |
| 41 |
| 20 |
| 18 |
| 18 |
| 16 |
| --- |
|
| --- |
| --- |
| 38 |
| 40 |
| 42 |
| 20 |
| 18 |
| 18 |
| 16 |
| --- |
|
| --- |
| --- |
| --- |
| --- |
| |
| 20 |
| 18 |
| 18 |
| 16 |
| --- |
|
|
Hot-rolled base metal |
| SGHC |
| SGHC340 |
| SGHC400 |
| SGHC440 |
| SGHC490 |
| SGHC540 |
|
|
|
|
|
|
|
|
|
Continue
Catalogue of Seven Diamonds (920 KB) 