Cold Drawn Steel Bar is classified into Free Cutting Carbon Steel containing Lead(Pb) or Sulphur(s) contents, Carbon Steel for Machine Structural Use (S**C/0.08% - 0.60%C), and Stainless Steel. Free Cutting Carbon Steel is used for making main parts of Motors, Office Appliances, Cameras and Watches. Carbon Steel is used for making small-size Motor Shafts, Shock Absorbers, Rolls, Screws, Gears, and etc. Dongil Steel is especially very proud of excellent quality of Free Cutting Steel Bar whose characteristics are featured for their superb straightness, beautiful surface, and unsurpassed free cutting, thus making it the leader of Cold Drawn Steel Bar in domestic and foreign markets. Dongil Steel uses quality Wire Rods manufactured by the world's first-class mills.
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Symbol
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Chemical Composition (%)
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|||||
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Kinds of Steel
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SAE No.
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C
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SI
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Mn
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P
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S
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|
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Carbon Steel for Machine Structural Use
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1008
|
max. 0.1
|
max. 0.10
|
0.30-0.50
|
max.0.040
|
max. 0.050
|
|
|
1012
|
0.10-0.15
|
max. 0.10
|
0.30-0.60
|
max.0.040
|
max. 0.050
|
|
|
|
1017
|
0.15-0.20
|
max. 0.10
|
0.30-0.60
|
max.0.040
|
max. 0.050
|
|
|
|
1022
|
0.18-0.23
|
max. 0.10
|
0.70-1.00
|
max.0.040
|
max. 0.050
|
|
|
|
1010
|
0.08-0.13
|
0.15-0.35
|
0.30-0.60
|
max.0.040
|
max. 0.050
|
|
|
|
1015
|
0.13-0.18
|
0.15-0.35
|
0.30-0.60
|
max.0.040
|
max. 0.050
|
|
|
|
1020
|
0.18-0.23
|
0.15-0.35
|
0.30-0.60
|
max.0.040
|
max. 0.050
|
|
|
|
1025
|
0.22-0.28
|
0.15-0.35
|
0.30-0.60
|
max.0.040
|
max. 0.050
|
|
|
|
1030
|
0.28-0.34
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0.15-0.35
|
0.60-0.90
|
max.0.040
|
max. 0.050
|
|
|
|
1038
|
0.35-0.42
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0.15-0.35
|
0.60-0.90
|
max.0.040
|
max. 0.050
|
|
|
|
1040
|
0.37-0.44
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0.15-0.35
|
0.60-0.90
|
max.0.040
|
max. 0.050
|
|
|
|
1045
|
0.43-0.50
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0.15-0.35
|
0.60-0.90
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max.0.040
|
max. 0.050
|
|
|
|
1050
|
0.48-0.55
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0.15-0.35
|
0.60-0.90
|
max.0.040
|
max. 0.050
|
|
|
|
1055
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0.50-0.60
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0.15-0.35
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0.60-0.90
|
max.0.040
|
max. 0.050
|
|
|
|
Free Cutting Steel
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1212
|
max. 0.13
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0.15-0.35
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0.70-1.00
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0.07-0.12
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0.16-0.23
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|
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1213
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max. 0.13
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0.15-0.35
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0.70-1.00
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0.07-0.12
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0.24-0.33
|
|
|
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1215
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max. 0.09
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0.15-0.35
|
0.75-1.05
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0.04-0.09
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0.26-0.35
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|
|
|
-
|
0.14-0.20
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0.15-0.35
|
0.60-1.10
|
max.0.040
|
0.10-0.20
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|
|
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12L14
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max. 0.15
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0.15-0.35
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0.85-1.15
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0.04-0.09
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0.26-0.35
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|
|
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1117
|
0.14-0.20
|
0.15-0.35
|
1.00-1.30
|
max.0.040
|
0.08-0.13
|
|
|
|
1137
|
0.32-0.39
|
0.15-0.35
|
1.35-1.65
|
max.0.040
|
0.08-0.13
|
|
|
|
1146
|
0.42-0.49
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0.15-0.35
|
0.70-1.00
|
max.0.040
|
0.08-0.13
|
|
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SUS 303F
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-
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≤0.08
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≤1.00
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<=2.00
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<=0.040
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0.8
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Symbol
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Chemical Composition (%)
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JIS
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KS
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Kinds of Steel
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SAE No.
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Ni
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Cr
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Pb
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|||
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Carbon Steel for Machine Structural Use
|
1008
|
|
|
|
|
|
|
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1012
|
|
|
|
|
|
|
|
|
1017
|
|
|
|
|
|
|
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1022
|
|
|
|
|
|
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1010
|
max. 0.20
|
max. 0.20
|
|
S10C
|
SM10C
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|
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1015
|
max. 0.20
|
max. 0.20
|
|
S15C
|
SM15C
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|
|
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1020
|
max. 0.20
|
max. 0.20
|
|
S20C
|
SM20C
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|
|
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1025
|
max. 0.20
|
max. 0.20
|
|
S25C
|
SM25C
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|
|
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1030
|
max. 0.20
|
max. 0.20
|
|
S30C
|
SM30C
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|
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1038
|
max. 0.20
|
max. 0.20
|
|
S38C
|
SM38C
|
|
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1040
|
max. 0.20
|
max. 0.20
|
|
S40C
|
SM40C
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|
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1045
|
max. 0.20
|
max. 0.20
|
|
S45C
|
SM45C
|
|
|
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1050
|
max. 0.20
|
max. 0.20
|
|
S50C
|
SM50C
|
|
|
|
1055
|
max. 0.20
|
max. 0.20
|
|
S55C
|
SM55C
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Free Cutting Steel
|
1212
|
|
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SUM21
|
SUM21
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1213
|
|
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SUM22
|
SUM22
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|
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|
1215
|
|
|
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SUM23
|
SUM23
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|
|
|
-
|
|
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SUM32
|
SUM32
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|
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12L14
|
|
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0.10-0.35
|
SUM24L
|
SUM24L
|
|
|
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1117
|
|
|
-
|
SUM31
|
SUM31
|
|
|
|
1137
|
|
|
-
|
SUM41
|
SUM41
|
|
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1146
|
|
|
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SUS 303F
|
-
|
8.00-10.00
|
17-19
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