JIS tool steels SK3M, SK5M, SK6M, SK7M, SK1, SK2, SK3, SK4, SK5, SK6, and SK7 differ only in carbon specification; SKC3 includes a vanadium max spec. |
JIS G4401(83) SK3. Comparable to SK3M, SK5M, SK6M, SK7M, SK1, SK2, SK4, SK5, SK6, SK7, SKC3, AISI W1 Tool Steel, UNS T72301 |