Tungsten Carbide Button/carbide Drill Bits/ Carbide Button Tips

Grade

Density

T.R.S

Hardness

Performance & application recommended

(g/cm³)

N/mm²

(HRA)

YG4C

15.1

1800

90.0

Mainly used as small buttons for percussion bits to cut soft and medium hard formations.

YG6

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.

YG8

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.

YG8C

14.8

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.

YK15

14.6

2450

87.6

Suitable to strips, conical buttons for rotary percussion-resistant,geological prospectioin buttons, cut soft and medium hard formation.

YK20

14.4

2500

86.8

Primarily for the buttons and inserts of rotary percussion bits to cut medium-hard and very hard formations.

YK25

14.4

2550

87.2

Primarily for the buttons and inserts of rotary percussion bits to cut medium-hard and very hard formations.

YG11C

14.4

2700

86.5

Largely for the inserts and buttons of percussion bits and tricone bits   to cut medium-hard, hard and very hard formations.