﹒material : S45C
﹒surface roughness :≤0.25~0.35 RA ﹒D Tolerance : g6 (g5)
﹒Straightness : ≤ 0.2mm/1m
﹒Steel for general machine structural use ﹒Used for all machines with rotary axes
﹒High-frequency Quenching ﹒Hardness : HRC 55~60
﹒Hardening Layer : 0.8mm~3mm or more