TYPE

  Dimension   mm

D±0.05

a*a±0.05

H±0.05

F

Φ80

81.0~82.1

27.5*27.5

64.5

12

Φ85

85.1~85.2

31*31

64.5

12

Φ90

90.1~91.1

31.5*31.5

70

13

Φ105

104.5~105.5

36*36

76

13

Φ110

109.5~111.5

36*36

80

13

Φ115

114.5~115.5

38*38

83

13

Φ122

121.5~122.5

41.5*41.5

91

13

Φ127

126.5~127.5

44*44

95

13.5

Φ128

127.5~128.5

47*47

95

13.5

Φ130

129.5~130.5

48*48

95

13.5

Φ136

135.5~136.5

53*53

98

13.5

Φ142

141.5~142.5

55*55

100

13.5

Φ148

148.5~149.5

54*54

103

13.5

Φ160

160.1~160.9

62*62

110

15

Φ175

175.1~175.9

63*63

128

15

Φ199

199.1~199.5

77*77

142

15

Grades

Density(g/cm³)

Hardness(HRA)

T·R·S(N/mm2)

Application

YG4C

15.00

89.5

1800

Maily used as small buttons for percussion bits and as the inserts of rotary prospecting bits to cut soft, medium-hard formations.

YG6

15.80

89.5

1700

Maily used as the buttons of small and medium-sized percussion bits and as the inserts of rotary prospecting bits to cut soft, medium-hard formations.

YG8

14.70

88.5

2300

Maily used as the buttons of small and medium-sized percussion bits and as the inserts of rotary prospecting bits to cut soft, medium-hard formations.

YG8C

14.70

88.0

2300

Maily used as the buttons of small and medium-sized percussion bits and as the inserts of rotary prospecting bits to cut soft, medium-hard formations.

YG9C

14.50

87.0

2400

Maily used as the inserts and buttons for rotary-percussive bits, coal-cutting bits and tricone bits to cut medium-hard and hard formations.

YG11C

14.40

86.5

2450

Chiefly for the inserts and buttons of heavy rock drill bits and rotary-percussive bits, coal-cutting bits and tricone bits to cut medium-hard and hard formations.

YG13C

14.30

86.0

2500

Mainly used as the inserts and buttons of tricone bits rotary-percussive bits and heavy rock drill bits to cut medium-hard and hard formations.

YG15

14.00

86.5

2500

It is stronger, and is mainly used as the inserts and buttons of rotary-percussive bits, heavy rock drill bits to cut hard and very hard formations.

YG16

14.10-14.30

87.5

2400

It is mainly used for making cemented carbide substrate tips to be used in PDC cutters for excavating coal and oil field PDC bits.

YG20

13.40-13.70

85.0

2254

Mainly for the stamping dies used in the conditions of heavy impact load and large strees.