|
Grade
|
Equivalent
grade
|
ISO
grade
|
WC%
|
Co%
|
TiC%
|
TaC%
|
Other
%
|
Hardness
HRA±0.5
|
Density
g/cm3±0.1
|
TRS
Mps
Min
|
Characteristics and Application
|
|
GU15UF
|
YG8X
|
|
90.5
|
8.0
|
|
|
1.5
|
93.2
|
14.60
|
3500
|
Ultra-fine grain,for fibreglass
reinforced plastics,titanium alloys,hardened steel.
|
|
GF25UF
|
YG12X
|
|
86.0
|
12.0
|
|
1.2
|
0.8
|
93.0
|
14.10
|
4000
|
Ultra-fine grain,for grey cast iron & heat_resistant
alloys.
|
|
GU10
|
YG6X
|
K01
|
94.0
|
6.0
|
|
|
|
93.0
|
14.85
|
2700
|
Sub-micron grain,for non-ferous
precision cutting and wood cutting.
|
|
GU20
|
YG10X
|
K20
|
90.0
|
10.0
|
|
|
|
92.0
|
14.45
|
3400
|
Sub-micron grain,for endmill and
drill.
|
|
GU30
|
YG13X
|
K20
|
86.5
|
13.5
|
|
|
|
90.5
|
14.00
|
3500
|
Sub-micro grain,excellent wear resistance and toughness,for wood cutting.
|
|
GK02
|
YG4
|
K02
|
96.0
|
4.0
|
|
|
|
92.5
|
15.15
|
2300
|
Fine grain,for
hard grey cast iron precision cutting.
|
|
GK05
|
YG6A
|
K10
|
94.0
|
6.0
|
|
|
|
92.0
|
14.95
|
2450
|
Fine grain,for
drawing dies and wood cutting.
|
|
GK10
|
YG6X
|
K10
|
94.0
|
6.0
|
|
|
|
91.5
|
14.95
|
2500
|
Fine grain,for general
purpose of non-ferrous applications
|
|
GK20
|
YG6
|
K20
|
94.0
|
6.0
|
|
|
|
91.0
|
14.95
|
2600
|
Medium grain,for
non-ferrous rough cutting.
|
|
GK30
|
YG8
|
K30
|
92.0
|
8.0
|
|
|
|
90.0
|
14.70
|
2700
|
Medium grain,for
drawing dies.
|
|
GK40
|
YG9
|
K40
|
91.0
|
9.0
|
|
|
|
89.0
|
14.60
|
2800
|
Medium grain,for
soft grey cast iron cutting.
|
|
GF20
|
YG6
|
|
94.0
|
6.0
|
|
|
|
90.0
|
14.95
|
2600
|
Medium grain,high
anti-abrasion for mining inserts.
|
|
GF25
|
YG8
|
|
92.0
|
8.0
|
|
|
|
89.5
|
14.70
|
2750
|
Medium grain,high
anti-abrasion and good toughness,for percussion
bits.
|
|
GF25D
|
YG8
|
|
92.0
|
8.0
|
|
|
|
89.0
|
14.70
|
2800
|
Coarse grain,for
mining and construction inserts.
|
|
GF35
|
YG11
|
K40
|
89.0
|
11.0
|
|
|
|
88.5
|
14.45
|
2900
|
Medium grain,for
wear parts and mining tools.
|
|
GF40
|
YG12
|
K40
|
88.0
|
12.0
|
|
|
|
89.0
|
14.40
|
3000
|
Medium grain, for heavy roughing non-ferrous.
|
|
GF45
|
YG13
|
K40
|
87.0
|
13.0
|
|
|
|
88.5
|
14.20
|
3100
|
Medium grain,for
wear and light shock resistance.
|
|
GF55
|
YG18C
|
|
82.0
|
18.0
|
|
|
|
85.5
|
13.85
|
3000
|
Coarse grain,for
impact resistance forging dies & roll.
|
|
GF60
|
YG20C
|
|
80.0
|
|
|
|
|
|
|
|
Coarse grain,for
∮20-∮50
bolt header dies.
|
|
GF65
|
YG22C
|
|
78.0
|
22.0
|
|
|
|
84.0
|
13.40
|
2700
|
Coarse grain,for
stainless bolt header dies and roll.
|
|
GF70
|
YG25
|
|
75.5
|
24.5
|
|
|
|
82.5
|
13.18
|
2500
|
Coarse grain,for
nut forming dies.
|
|
GF70A
|
YG25C
|
|
75.0
|
25.0
|
|
|
|
81.5
|
13.15
|
2400
|
For high impact resistance forging dies.
|
|
GD10
|
YG6C
|
|
94.0
|
6.0
|
|
|
|
89.0
|
14.95
|
2500
|
Coarse grain,for
percussion bits and inserts for hard rock or coal mining.
|
|
GD20
|
YG8C
|
|
92.0
|
8.0
|
|
|
|
88.5
|
14.70
|
2700
|
Coarse grain,for
percussion bits and mining inserts.
|
|
GD25
|
YG10C
|
|
90.0
|
8.0
|
|
|
|
88.5
|
14.70
|
2700
|
Coarse grain, for oil bits and mining inserts.
|
|
GD40
|
YG13C
|
|
87.0
|
13.0
|
|
|
|
96.5
|
14.20
|
3200
|
Coarse grain,good
toughness,for oil bits.
|
|
GD50
|
YG15C
|
|
85.0
|
15.0
|
|
|
|
86.0
|
14.00
|
3100
|
Good wear & impact resistance,for forming die and oil bits.
|
|
GT20
|
|
P20
|
72.0
|
8.0
|
8.0
|
12.0
|
|
92.2
|
12.55
|
1900
|
Good general purpose for turning and finishing of
ferrous metal.
|
|
GT30
|
|
P30
|
75.8
|
8.0
|
6.2
|
10.0
|
|
91.5
|
12.90
|
2100
|
Excellent general purpose for rough machining of
ferrous metal.
|
|
GT40
|
|
P40
|
80.0
|
10.0
|
5.0
|
5.0
|
|
90.5
|
13.10
|
2200
|
Good impact resistance,for rough cutting of ferrous metal.
|
