TYPE CHEMISTRY COMPONEN GRAIN T.R.S(N/mm2) DENSITY(g/cm3) HARDNESS(HRA) APPLICATION
WC Co
YG4C 96 4 coarser 1800 15.00 89.5 Mainly used as small buttons for percussion bits to cut soft and medium-hard formations.
YG6C 94 6 coarser 1900 14.90 88.5 Mainly used as small buttons for percussion bits to cut soft and medium-hard formations.
YG8C 92 8 coarser 1950 14.70 88.0 Mainly used as the buttons of small medium sized bits and as the inserts bits to cut soft and medium hard formation.
YG8 92 8 middle 1800 14.70 89.0 Mainly used as the buttons of small medium sized bits and as the inserts bits to cut soft and medium hard formation.
YG9C 91 9 coarser 2300 14.50 86.5 Mostly for the inserts and buttons bits to cut medium-hard formations.
YG11C 89 11 coarser 2350 14.40 86.5 Mostly for the inserts and buttons bits to cut medium-hard and hard formations.
YG13C 87 13 coarser 2450 14.30 86.5 Mainly used as insert and buttons bits to cut hard formations.
YG15 85 15 middle 2450 14.00 85.5 Mainly used as insert and button bits to cut hard and very hard formations.
JK1 90 10 coarser 2500 14.45 86.7 Mainly for heavy rock tools,Cut hard and very hard formations
JK2 91 9 coarser 2450 14.55 87.0 Mainly for coal mining ,cut medium-hard and hard formations
JK3 92 8 coarser 2350 14.70 87.7 mainly for the inserts and buttons bit for midium-hard formations
