O-Ring RUIAN SHUNCHENG TRADING CO.,LTD , https://www.sunchevmarine.com
Tungsten Carbide is one of the most versatile materials used for seal faces. It offers excellent resistance to heat, wear, and fracture, making it ideal for high-pressure applications. Its high modulus of elasticity helps prevent face distortion under extreme conditions.
There are two main types of Tungsten Carbide seals available:
- **Nickel-Bonded** (Not recommended for ammonia environments)
- **Cobalt-Bonded** (Suitable for ammonia applications)
Below are the common grades we offer:
**ISO K10** (APTS Co6X)
**ISO K20** (APTS Co6)
**ISO K30** (APTS Co8)
Grade
Co / Ni (wt%)
Density (g/cm³)
Hardness (HRA)
TRS (≥N/mm²)
APT
ISO
APT Co6X
K10
6% Co
14.6 - 15.0
91.5
1860
APT Co6
K20
6% Co
14.7 - 15.1
90.5
1900
APT Co8
K30
8% Co
14.5 - 14.9
90
1980
APT Co8 I
-
8% Co
14.5 - 14.9
88.5
2020
APT Ni 6
-
6% Ni
14.5 - 14.9
90
1800
APT Ni 8
-
8% Ni
14.4 - 14.8
89
2000
O-Ring
Tungsten Carbide Pump Mechanical Seal Faces
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For more detailed information about the material properties, feel free to contact us directly. We’re happy to assist you in selecting the best option for your specific application.
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