Konrad Friedrichs GmbH & Co.KG

Carbide Grades - HartmetallsortenSorte K20F K40UF K44UF K55SF K6UF K88UFISO classification - ISO Bereich K20-K30 K30-K40 K20-K30 K05-K10 K05-K20 K10-K20CO [%] 8.0 10.0 12.0 9.0 6.0 10.0WC+Cr3C2+VC [%] 92.0 90.0 88.0 91.0 94.0 90.0TiC/Ta/Nbc [%] 0 0 0 0 0 0Density - Dichte [g/cm 3 ] 14.6 14.4 14.05 14.3 14.8 14.4HV30 [kg/mm 2 ] 1710 1610 1680 1920 1900 1780HRA [ISO3738] 92,7 92.1 92.6 93.7 93.6 93.0KIC [MNm -3/2 ] 9.5 10.5 10.0 9.3 9.3 9.8Bending strength- Biegefestigkeit[N/mm 2 ] 3200 >4000 >4000 3800 3900 >4000Porosity -PorositätWC grain size -WC-KorngrößeA