Cutting data for ball nose cutters

P Material	HB	Basic qualities - Cutting speed m/min.
		TIN25	PM25	PM40	KM15
Unalloyed steel	110-310	140-190	125-175	80-120
Low alloyed steel	125-450	75-170	75-155	45-105
High alloyed steel	150-50	70-150	70-150	40-100
Stainless steel	150-270	120-160	110-140	75-110
Steel castings	150-250		50-125	35-80

M Material	HB	Basic qualities - Cutting speed m/min.
		TIN25	PM25	PM40	KM15
Stainless steel annelaed	150-220	80-150	70-130	55-90
Steel castings (Stainless austenitic)	200	40-70	40-60	20-40
Nickel base castings	220-300				10-30
Titanium alloys	300-400				30-60

K Material	HB	Cutting speed m/min.
		TIN25	PM25	PM40	KM15
Tempered steel	HRC 50-65		10-20		10-20
Malleable cast iron	110-230				60-90
Grey cast iron	180-260				50-90
Nodular cast iron	160-250				30-60
Chilled cast iron	HRC 40-60				8-25
Aluminium cast iron	30-100				200-300
Bronze-brass alloys	80-150				30-120

Spindle speed