Tungsten carbide rings are commonly made use of in petrochemical as well as various other sealing industries because of their high hardness and good corrosion resistance.
Cemented carbide ring is constructed from tungsten carbide powder as raw material, including appropriate amount of cobalt powder or nickel powder as binder, pressed right into a ring through a specific mold, and also sintered in a vacuum furnace. It is a reasonably typical manufacturing and processing product in cemented carbide manufacturers. Because of its high solidity, excellent anti-corrosion performance, and also sealing efficiency, it is widely made use of in petrochemical and other sealing sectors.
Why Choose Our Tungsten Carbide Ring:
1. Strict quality inspection, high precision and small tolerance
2. Can withstand high temperature and high pressure, not easy to deform
3. First-class corrosion resistance, can be in contact with most corrosive fluids
4. Made of top-quality raw materials
5. High-quality service, unconditional replacement if there is a problem with the product during the warranty period
6. All products have passed ISO9001 certification
Cobalt Binder Grades
Grade | Binder (Wt %) | Density (g/cm3) | Hardness (HRA) | TRS (>N/mm²) |
YG6 | 6 | 14.8 | 90.0 | 1520 |
YG6X | 6 | 14.9 | 91.0 | 1450 |
YG6A | 6 | 14.9 | 92.0 | 1540 |
YG8 | 8 | 14.7 | 89.5 | 1750 |
YG12 | 12 | 14.2 | 88.0 | 1810 |
YG15 | 15 | 14.0 | 87.0 | 2050 |
YG20 | 20 | 13.5 | 85.5 | 2450 |
YG25 | 25 | 12.1 | 84.0 | 2550 |
Nickel Binder Grades
Grade | Binder (Wt %) | Density (g/cm3) | Hardness (HRA) | TRS (>N/mm²) |
YN6 | 6 | 14.7 | 89.5 | 1460 |
YN6X | 6 | 14.8 | 90.5 | 1400 |
YN6A | 6 | 14.8 | 91.0 | 1480 |
YN8 | 8 | 14.6 | 88.5 | 1710 |
Typical Tungsten Carbide Grade Mechanical Properties for Mechanical seal rings
| Grade | Main Chemical Composition（wt%） | Modulus Of Elasticity （KN/m㎡） | Compressive Strength （N/m㎡） | Thermal Conductivity （W/m-K） | Coefficient Of Thermal Expansion | ||||
| WC | Co | Ni | TiC | Mo | |||||
| YG6 | 94 | 6 | - | - | - | 630 | 5500 | 100 | 5.5×10-6/ K |
| YG8 | 92 | 8 | - | - | - | 590 | 5200 | 90 | 5.8×10-6/ K |
| YG15 | 85 | 15 | - | - | - | 530 | 4600 | 70 | 6.2×10-6/ K |
| N100 | 94 | - | 6 | - | - | 600 | 4500 | 90 | 5.3×10-6/ K |
| N200 | 92 | - | 8 | - | - | 570 | 4300 | 80 | 5.2×10-6/ K |
| TIP | 81.5 | 8.5 | 10 | - | 530 | 4700 | 70 | 5.6×10-6 /K | |
| QT200 | 25 | - | 15 | 52 | 8 | 400 | 3400 | 25 | 7.8×10-6 /K |
Typical Mechanical Seal rings drawings.
