|
 |
|
| JIS |
Carbon Tool Steel Chemical Composition (%) |
| C |
Si |
Mn |
P |
S |
Cu |
Ni |
Cr |
| SK2 |
1.1~1.3 |
0.35 MAX |
0.5 MAX |
0.3 MAX |
0.3 MAX |
0.25 MAX |
0.25 MAX |
0.3 MAX |
| SK3 |
1~1.1 |
0.35 MAX |
0.5 MAX |
0.3 MAX |
0.3 MAX |
0.25 MAX |
0.25 MAX |
0.3 MAX |
| SK4 |
0.09~1 |
0.35 MAX |
0.5 MAX |
0.3 MAX |
0.3 MAX |
0.25 MAX |
0.25 MAX |
0.3 MAX |
| SK5 |
0.8~0.9 |
0.35 MAX |
0.5 MAX |
0.3 MAX |
0.3 MAX |
0.25 MAX |
0.25 MAX |
0.3 MAX |
| JIS |
Spring Steel Chemical Composition (%) |
| C |
Si |
Mn |
P |
S |
Cu |
Cr |
V |
| SUP3 |
0.75~0.9 |
0.15~0.35 |
0.3~0.6 |
0.035 MAX |
0.035 MAX |
0.3 MAX |
|
|
| SUP6M |
0.55~0.65 |
1.5~1.8 |
0.7~1 |
0.035 MAX |
0.035 MAX |
0.3 MAX |
|
|
| SUP7 |
0.55~0.65 |
1.8~2.2 |
0.7~1 |
0.035 MAX |
0.035 MAX |
0.3 MAX |
|
|
| SUP9M |
0.5~0.6 |
0.15~0.35 |
0.65~0.95 |
0.035 MAX |
0.035 MAX |
0.3 MAX |
0.65~0.94 |
|
| SUP10M |
0.45~0.55 |
0.15~0.35 |
0.65~0.95 |
0.035 MAX |
0.035 MAX |
0.3 MAX |
0.8~1.1 |
0.15~0.25 |
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