Grade

Chemical Composition Wc    Co

Hardness
HRA±0.3

Density
g/cm³±0.1

TRS
n/mm²

Grain Size
um

Applications recommended

ZF10

94    6

90.3

14.95

3250

1.6~2.4

Used for making carious sizes ofbuttons for hammer & DTH bits for drilling in mediumhhard formation

ZF10H

93.5    6.5

90.2

14.90

3200

1.6~2.4

Used for making carious sizes ofbuttons for hammer&DTH bits for drilling in mediumhhard formation

ZF15

92    8

88.8

14.75

3300

2.4~3.2

Used for making various buttons and disk cutters for rock bits as well as for making wear rstant parts

ZF15A

92    8

90.5

14.75

3400

1.6~2.4

Used for maki buttons for hammer & DTH bits for drillingin interbeddedformation andteriaced soft& hard formation

YG9C

90.5    9.5

87.8

14.55

2700

2.4~3.2

Suitable for bore bit of percussion rofary rock chill drilling medium hard and fairly hardrock teeth of coal cutter cutting coal cutter cutting coat with hard don basses all drill bit

YG11C

89    11

87.0

14.40

2800

2.4~3.2

Applied to inlay the drill bit for heavy-duty and bore bit of percussion rotary rock drill drilling hard rock

YG15C

85    15

85.5

14.00

2800

2.4~3.2

High strength wear resitance comparatively lower Applied to manufactu-re rticom compound pieces