COMMON Valve Seat Coating MATERIALS
COMMON Valve Seat CoatingMATERIALS
Valve Seat: The detachable surface parts in valve are used to support the valve spool in the fully closed position and constitute a sealed part. Generally, valve seat diameter is the maximum flow diameter of the valve.
PRODUCT PARAMETERS FOR OUR high performance valve seat
This part can be illustrated by a table shown below:
name |
Description |
Chemical composition |
Max thickness |
Hardness |
Bond strength |
Porosity |
Limit temperature |
Costing characterlzation |
mm |
MPa |
% |
℃ |
|||||
WC-CoCr |
WC86/Co10/Cr4 |
Co:9-11 Cr:3.5-4.5 C:3.5-4.5 W: Bal |
1 |
1100-1500 |
>75 |
<1% |
482 |
and corrosion resistance are improved.
|
WC-Co |
WC88/Co12 |
Co:11-13 C:3.6-5.5 W:Bal |
2 |
1050-1200 |
>75 |
<1% |
454 |
|
WC-Co |
WC83/Co17 |
Co:16-18 C:4.8-5.5 W: Bal |
2 |
950-1100 |
>75 |
<1% |
454 |
is poor, but toughness, impact strength and ductility are better.
|
Cr3C2-NiCr |
75Cr3C2/25NiCr |
Ni:16-21C:9-11 Cr:11 B:2.2 Si:4 Fe:2.7 C:0.4 Ni:Bal |
1 |
750-900 |
>75 |
<1.5% |
871 |
of abrasive-resistant materials at high temperatures.
|
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