Mô tả
Tungsten carbide – 10% cobalt 4% chromium
55586C is a spherical powder manufactured by agglomerating and sintering a formulation of 86% tungsten carbide with 10% cobalt and 4% chromium by weight. The addition of chromium to the matrix improves the resistance to corrosion and increases thermal stability versus WC-12Co or WC-17Co coatings. It has been developed for spraying with the CastoJet CJK5 system which is a High Pressure HVOF using kerosene as liquid fuel. 55586C powder is also suitable for other HVOF systems or plasma spraying. 55586C sprayed coatings are hard and dense with high bond strengths on a wide variety of metallic substrates. They resist exceptionally well where both wear and corrosion are required for service temperatures up to 500°C.
Applications
- Compressor shaft
- Oil and gas extraction parts
- Ball and gate valves
- Landing gears
- Impellers
- Paper rolls
- Hard chrome plating replacement
Technical data:
| Micro hardness | ~ 1230 HV0.3 |
| Service temperature | max 500°C (930°F) |
| Bond strength (EN 582 | 1994): >70 MPa (>10,000 psi) |
| Deposition efficiency (EN ISO 17836 | 2004): ~ 48% |
| Porosity (image analysis) | ~ 0.5% |
| The above values depend on the spraying system | |
| and parameters used. Therefore measured coating | |
| properties may vary from above values. |
