CP1

Roughing gray cast & ductile cast iron / CVD coated carbide

CVD coated carbide grade ideal for roughing

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Highly efficient and stable machining even during low cutting speed conditions

Outstanding wear resistance at cutting speeds of Vc=~300m/min 1000 SFM

Ideal for roughing of gray and ductile cast iron
High degree of wear resistance and stable machining due to thick laminated TiCN + Al₂O₃ coating
Excellent adhesion resistance with the uniquely smooth rake surface treatment

Gray cast iron/Ductile cast iron
Roughing with scale

① A very smooth layer of fine grain Al2O3
② Fine column shaped grain TiCN layer
③ Ultra – hard cemented carbide base material

Cutting conditions

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Grade	Material	Operation type	Machining	Cutting speed (m/min) Cutting speed (SFM)	Feed(mm/rev) Feed(IPR)	DOC(mm) DOC(inch)	Coolant
CP1	Gray cast iron/Ductile cast iron	Turning	Roughing with scale, Rough to semi-finish machining	100 – 300 300 – 1000	0.2 – 0.4 .008 – .016	-5.0 – .197	WET

Case study

ID boring of housing part
Material : Gray cast iron Workpiece condition : with scale
Cutting speed : 300 m/min 1000 SFM
Feed : 0.5 mm/rev .0197 IPR
DOC : 2.5 mm .0984 inch
Coolant : WET
CP1	110 pcs / corner
Competitor’s CVD coated carbide	50 pcs / corner

OD machining of water pipe part
Material : Ductile cast iron
Cutting speed : 150 m/min 500 SFM
Feed : 0.25 mm/rev .0098 IPR
DOC : 1.0 mm .0394 inch
Coolant : WET
CP1	60 pcs / corner
Competitor’s CVD coated carbide	8 pcs / corner

April 23, 2025

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