SYMBOL | CHEMICAL COMPOSITION | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
JIS | C | Si | Mn | P | S | Cu | Ni | Cr | Ni+Cr | Mo | V |
SK-2 | 1.10 ~ 1.30 | 0.350 Max | 0.500 Max | 0.030 Max | 0.030 Max | 0.250 Max | 0.250 Max | 0.200 Max | - | - | - |
SK-3 | 1.00 ~ 1.10 | 0.350 Max | 0.500 Max | 0.030 Max | 0.030 Max | 0.250 Max | 0.250 Max | 0.200 Max | - | - | - |
SK-4 | 0.90 ~ 1.00 | 0.350 Max | 0.500 Max | 0.030 Max | 0.030 Max | 0.250 Max | 0.250 Max | 0.200 Max | - | - | - |
SK-5 | 0.80 ~ 0.90 | 0.350 Max | 0.500 Max | 0.030 Max | 0.030 Max | 0.250 Max | 0.250 Max | 0.200 Max | - | - | - |