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Cold rolled special steel strip Symbol Chemical Composition
Symbol
Chemical Composition
Classification
Type
Chemical composition Ladle analysis
JIS G3311
SAE
Considerable
Quantity
Sand
C
Si
Mn
P
S
Cu
Ni
Cr
Ni+Cr
Mo
High carbon
steel strip
-
1020
TSC20
0.18
~0.23
0.15
~0.35
0.30
~0.60
0.030
Max
0.035
Max
-
-
-
-
-
-
1035
TAK35
0.32
~0.38
(0.10
Max)
0.60
~0.90
0.030
Max
0.030
Max
-
-
-
-
-
S35CM
1035
TSC35
0.32
~0.38
0.15
~0.35
0.60
~0.90
0.030
Max
0.035
Max
0.30 Max
0.20 Max
0.20 Max
0.35 Max
-
-
1042
-
0.39
~0.47
(
0.15
~0.35
)
0.60
~0.90
0.040
Max
0.050
Max
-
-
-
-
-
S45CM
1045
TSC45
0.42
~0.48
0.15
~0.35
0.60
~0.90
0.030
Max
0.035
Max
0.30 Max
0.20 Max
0.20 Max
0.35 Max
-
S50CM
1050
TSC50
0.47
~0.53
0.15
~0.35
0.60
~0.90
0.030
Max
0.035
Max
0.30 Max
0.20 Max
0.20 Max
0.35 Max
-
S55CM
1055
TSC55
0.52
~0.58
0.15
~0.35
0.60
~0.90
0.030
Max
0.035
Max
0.30 Max
0.20 Max
0.20 Max
0.35 Max
-
S60CM
1060
TSC60
0.55
~0.65
0.15
~0.35
0.60
~0.90
0.030
Max
0.035
Max
0.30 Max
0.20 Max
0.20 Max
-
-
S65CM
1065
TSC65
0.60
~0.70
0.15
~0.35
0.60
~0.90
0.030
Max
0.035
Max
0.30 Max
0.20 Max
0.20 Max
-
-
Alloy
tool
steel strip
SK5M
-
SK5
0.80
~0.90
0.35 Max
0.50 Max
0.030
Max
0.030
Max
0.25 Max
0.25 Max
0.30 Max
-
-
Chromium
Molybdenum
steel strip
SCM415M
-
SCM415
0.13
~0.18
0.15
~0.35
0.60
~0.85
0.030
Max
0.030
Max
0.30 Max
0.25 Max
0.90
~1.20
-
0.15
~0.30
-
-
SCM420
0.18
~0.23
0.15
~0.35
0.60
~0.85
0.030
Max
0.030
Max
0.30 Max
0.25 Max
0.90
~1.20
-
0.15
~0.30
SCM435M
-
SCM435
0.33
~0.38
0.15
~0.35
0.60
~0.85
0.030
Max
0.030
Max
0.30 Max
0.25 Max
0.90
~1.20
-
0.15
~0.30
Chromium
steel strip
SCr420M
-
SCr420
0.18
~0.23
0.15
~0.35
0.60
~0.85
0.030
Max
0.030
Max
0.30 Max
0.25 Max
0.90
~1.20
-
-
Note
1.the time of Si being specified in the SAE standard in carbon steel
classification -- () of a table -- I will make it the value of the
inner marginal range
