Carbide cutting material for finishing and roughing work when turning, milling and boring with good edge strength and high toughness of the cutting material under very difficult machining conditions with interrupted cuts and shock loads.

Areas of application:

• Titanium alloys
• Heat-resistant alloys
• Austenitic stainless steels
• Grey cast iron
• Fibreglass reinforced plastics

!!!! The high hardness coupled with high toughness and bending strength is achieved through the presence of ultra fine grain tungsten carbide of 0,6 mm and a relatively high cobalt content (10 % cobalt). !!!!!

Grade		K20F
ISO-Classification		K05
Diameter	[mm]	1.2 - 42.2
Co	[%]	6.0
WC+Cr3C2+VC	[%]	94.0
Spec. weight	[g/cm³]	14.95 ± 0.15
HC	[kA/m]	26.0 ± 2.5
4πσ	[μTm³/kg]	9.8 ± 1.0
HV30	[kg/mm²]	1900 ± 50
KIC	[MNmm-3/2]	9.3
Bending strenght (TRS)	[N/mm²]	> 4000
Porosity	A	≤ 02
	B	00
	C	00
WC grain size - Ø	[μm]	0.6
Binding phase		Uniform Distribution
Mixed Carbide		-
Eta-Phase		-
Applications		Drilling applications, e.g. for composite materials, for PCB-drills Ø 0,1 mm to Ø 0,5 mm, standard filing chamber.
Dimensions		Ø 1.5+0.1 mm x 365+5.0 mm Ø 3.25+0.1 mm x 395+5.0 mm
© Konrad Friedrichs GmbH & Co. KG