Character:
Gray particle and Gray powder
Applications：

Cast tungsten carbide is used as a reinforcing material for hard facing of petroleum drilling tools. Building-material machines, cereals processing machines and other easily wearing components .

　Cast tungsten carbide powder
Electric mirror photo
  Product specification：  
Grade
Sieve test size(μ m)
Grain size，mm
YZ5～10f
-5～+10
4～2
YZ10～20f
-10～+20
2～0.85
YZ20～30f
-20～+30
0.85～0.60
YZ30～40f
-30～+40
0.60～0.425
YZ40～60f
-40～+60
0.425～0.25
YZ60～80f
-60～+80
0.25～0.18
YZ80～100f
-80～+100
0.18～0.14
YZ100～200f
-100～+200
0.14～0.075
YZ200～400f
-200～+400
0.075～0.034
 

The particle size shall meet the following requirements during inspection: 　　　　　　　　　　　　
The powder fraction larger than the upper limit of the size range shall not exceed 5% by weight.
The powder fraction smaller than the lower limit of the size range shall not exceed 7% by weight.
The above requirements do not apply to YZ200-400f grades.

 

   Main chemical composition,% ：
Main chemical composition,% ：
Impurity content ，%，max
Tungsten
Tc
HVR
Free carbon
Fe
Vr
V
Total content of Ti,Ta,Nb
Total content fo Co,Ni,Mo
95-96
3.9 ±0.1
0.08
0.1
0.5
0.2
0.2
0.2
0.3
The tungsten content is obtained by means of the weight percent subtractive method.
 
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