Mechanical Properties
 Table.4-1 Tensile Test of Galvannealed steel sheet -Cold rolled steel- (Nisshin Standard)
a
Symbol
Yield point
N/mm²
Tensile Strength
N/mm²
Elongation(%)
Thickness(mm)
0.4 to
0.6 ecxl.
0.6 to
1.0 ecxl.
1.0 to
1.6 ecxl.
1.6
or more
Commercial quality
CC
-
-
-
Drawing quality
CD
-
>270
>34
>36
>37
>38
Deep drawing quality
CE
-
>270
>36
>38
>39
>40
Extra deep drawing quality
CU
-
>270
-
>40
>41
>42

Structural
quality

340N grade
CK340
>245
>340
>20
400N grade
CK400
>295
>400
>18
440N grade
CK440
>335
>440
>18
490N grade
CK490
>365
>490
>16
  
 Table.4-2 Tensile Test of Galvannealed steel sheet -Hot rolled steel- (Nisshin Standard)
a
Symbol
Yield
point
N/mm²
Tensile
Strength
N/mm²
Elongation
(%)
Commercial quality
HC
-
-
-
Structural
quality
340N grade
HK340
>245
>340
>20
400N grade
HK400
>295
>400
>18
440N grade
HK440
>335
>440
490N grade
HK490
>365
>490
>16
  
  Table.4-3 Tensile Test of Galvannealed steel sheet -Cold rolled steel- (JIS Standard)
a
Symbol
Yield
point
N/mm²
Tensile
Strength
N/mm²
Elongation (%)
Thickness (mm)
0.25 to
0.4 ecxl.
0.4 to
0.6 ecxl.
0.6 to
1.0 ecxl.
1.0 to
1.6 ecxl.
1.6 to
2.5 ecxl.
2.5
or more
Commercial quality
SGCC
-
-
-
-
-
-
-
-
Drawing quality I
SGCD1
-
>270
-
>34
>36
>37
>38
-
Drawing quality II
SGCD2
-
>270
-
>36
>38
>39
>40
-
Drawing quality III
SGCD3
-
>270
-
>38
>40
>41
>42
-
Structural
quality
340N grade
SGC340
>245
>340
>20
400N grade
SGC400
>295
>400
>18
440N grade
SGC440
>335
>440
>18
490N grade
SGC490
>365
>490
>16
570N grade
SGC570
>560
>570
-
  
 Table.4-4 Tensile Test of Galvannealed steel sheet -Hot rolled steel- (JIS Standard)
a
Symbol
Yield
point
N/mm²
Tensile
Strength
N/mm²
Elongation
(%)
Commercial quality
SGHC
-
-
-
Structural
quality
340N grade
SGH340
>245
>340
>20
400N grade
SGH400
>295
>400
>18
440N grade
SGH440
>335
>440
490N grade
SGH490
>365
>490
>16
540N grade
SGH540
>400
>540
-
  
 Table.4-5 Tensile Test of Galvannealed steel sheet (ASTM Standard)
Symbol
Yield
Strength
ksi
Tensile
Strength
ksi
Elongation
(%)
SQ33
>33
>45
>20
SQ37
>37
>52
>18
SQ40
>40
>55
>16
SQ50 Class1
>50
>65
>12
  
aaaa
Symbol
Yield
Strength
MPa
Tensile
Strength
MPa
Elongation
(%)
SQ230
>230
>310
>20
SQ255
>255
>360
>18
SQ275
>275
>380
>16
SQ340 Class1
>340
>450
>12
001