SH 4
SH 4 is a mixed ceramic grade that provides maximum edge strength and even greater hot hardness for hard turning applications, with excellent strength and wear resistance of the cutting material. This makes SH 4 an economical alternative to competing CBN cutting materials in typical hard turning applications with smooth, continuous cuts. SH 4 is also suitable for conventional finishing and fine finishing of CI materials.
SH 4 Performance Data
| Material | Gray cast iron (CI), ductile cast iron (NCI), hard materials, hardened steels |
| Types of machining |   |
| Cutting conditions |   |
| Tool entry conditions |   |
| Machining |  
Finishing |
| Cutting data recommendations hard turning | vc = 80 – 180 m/min fz = 0.1 – 0.4 mm ap = 0.1 – 0.5 mm |
| Cutting data recommendations finish turning cast iron | vc = 400 – 1,400 m/min f = 0.08 – 0.6 mm ap = 0.5 – 1.0 mm |
| KSS |  +  |
