Chinatungsten Online has been specialized in manufacturing
tungsten products, especially tungsten carbide ball for more
than 20 years. If you have any inquires concerning the products in this website,
please do not hesitate to e-mail us by: sales@chinatungsten.com
|
Class
|
Grade
|
Chemical Composition
|
Physical-Mechanical
Property
|
Performance characteristic
|
Orientation for Property Increasing
|
|||||
|
WC
|
Co
|
Ni
|
Others
|
Density
g/cm³
|
Hardness
（HRA）
|
T.R.S.
N/mm²
|
||||
|
WC
+
Co
|
YG6
|
Balance
|
6
|
|
|
14.6-15.0
|
91
|
1600
|
The hardest and most wear resistant. Lower
toughness than YG8. Used in ball valves that is high abrasion and high impact
resistance.
|
↑
Abrasive
Resistance
Toughness
↓
|
|
YG8
|
Balance
|
8
|
|
|
14.4-14.8
|
89
|
1800
|
Higher hardness and wear resistant.
Better toughness than YG6. Have a well shock resistance, used in ball valves.
|
||
|
YG6X
|
Balance
|
6
|
|
A Little
|
14.6-15.0
|
92
|
1450
|
Submicron carbide, higher hardness and
wear resistance than YG6, lower toughness than YG8. Used in ball valves that
is high abrasion and high impact resistance.
|
||
|
WC
+
Ni (Cr)
|
YN6
|
Balance
|
|
6
|
A Little
|
14.5-14.9
|
90
|
1450
|
Higher hardness and wear resistance and
corrosion resistant. Used in ball valves where high temperature is required.
|
↑
Abrasive
Resistance
Toughness
↓
|
|
YN8
|
Balance
|
|
8
|
A Little
|
14.4-14.8
|
88
|
1650
|
Higher hardness and wear resistance. Used
in ball valves where shock resistance and corrosion are required.
|
||
|
YN12
|
Balance
|
|
12
|
A Little
|
14.0-14.4
|
86
|
1800
|
Higher toughness for impact load .Use in
ball valves where better shock and impact are required.
|
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