Tungsten carbide coal drill bits
We are one of the biggest and most proffessional manufaturer of tungsten carbide products in Hunan, China.
We supply tungsten carbide drill bits with many grades according to the properties and applications, such as YG4C, YG6, YG8. YG8C, YG9C, YG10C, YK25, YG11C, YG13C, YG15C, YG15.
They can be used as small buttons for percussion bits to cut soft and medium hard formations; Or for coring crowns, electrical coal drill bits, coal cutting picks, oil cone bits and scraping knife bits; Or used in geological prospecting, coal mining and oil well boring etc.
Other grades may be offered according to customers' requirement.
Our mainly products: Cold heading die/carbide disc cutter/carbide rock drilling bits / saw tips /carbide button/carbide stud bodies and many other profiled products.
Welcome to contact us, if you are interested in any of our products.

Here in the following are introductions of some performance and applications of some grades:

Density
T. R. S Hardness Performance & application recommended
g/cm3 MPα HRA
15.1 1800 90.0 Mainly used as small buttons for percussion bits to cut soft and medium hard formations.
14.9 2100 90.0 For coring crowns, electric coal drill bits, coal cutting picks, oil cone bits and scraping knife bits, USD in geological prospecting, coal mining and oil well boring.
14.7 2400 89.5 For coring crowns, electric coal drill bits, coal cutting picks, cone drill bits and scraping knife bits, used in geological prospecting, coal mining and oil well boring.
14.7 2450 88.5 Mostly used as the buttons of small and mediumsized percussion bits and as the inserts of rotary prospecting bits to cut soft and medium hard formations.
14.6 2450 87.8 Suitable to strips, conical buttons for rotary percussion-resistant, geological prospecting buttons, cut soft and medium hard formations.
14.4 2550 87.0 Primarily for the buttons and inserts of rotary percussion bits to cut medium-hard and hard formations.
14.5 2600 87.5 Primarily for the buttons and inserts of rotary percussion bits to cut medium hard and very hard formations.
14.4 2600 87.0 Largely for the inserts and buttons of percussion bits and tricone bits to cut medium-hard, hard, and very hard formations.
14.2 2650 86.5 Predominatly for the buttons of tricone bits and inserts of rotary percussion bits to cut hard and vey hard formations.
14.0 2700 86.5 For oil cone drill bits, for medium soft and medium -hard rocks.
14.0 2500 87.5 Good strength and less wear resistance, for bits of rotary hammer rock drills and heavy rock drills, for hard and very hard rocks.