WC-17Ni Thermal Spray Powder
- Agglomerated and Sintered gray-black spherical or near-spherical particles with good flowability.
- The maximum service temperature is up to 500℃.
- The dense coating has high hardness and excellent resistance to abrasive wear, fretting wear, adhesive wear, erosion wear, and corrosion wear.
- Nickel has better corrosion resistance than Cobalt, especially in wetting and corrosion environment.
- Mainly used in oilfield equipment (harsh corrosion performance requirements), the petrochemical industry, ball valves, offshore equipment, parts, etc.
Grade & Chemical Composition
|
Grade |
Chemical Composition (Wt, %) |
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|
W |
T. C |
Ni |
Fe |
O |
|
|
ZTC4BD* |
Balance |
5.0 – 5.3 |
16.5 – 17.5 |
≤ 0.2 |
≤ 0.5 |
*: D stands for spherical or near-spherical thermal spray powder.
Size & Physical Properties
|
Grade |
Type |
Size Fraction (μm) |
Apparent Density ( g/cm³) |
Flow Rate (s/50g) |
Application |
|
ZTC4B51D |
WC – Ni
83/17 Agglomerated & Sintered |
– 53 + 20 |
≥ 4 |
≤ 18 |
(JP5000 & JP8000, DJ2600 & DJ2700, JetKote, Woka Jet, K2)
|
|
ZTC4B53D |
– 45 + 20 |
≥ 4 |
≤ 18 |
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|
ZTC4B52D |
– 45 + 15 |
≥ 4 |
≤ 18 |
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|
ZTC4B81D |
– 45 + 11 |
≥ 4 |
≤ 18 |
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|
ZTC4B54D |
– 38 + 10 |
≥ 4 |
≤ 18 |
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|
ZTC4B82D |
– 30 + 10 |
≥ 4 |
≤ 30 |
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| We can tailor-make different particle size distributions and apparent densities for various applications. | |||||
| Recommended Spray Parameters (HVOF) |
|
Coating Properties |
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| Material |
WC – 17Ni |
|
Hardness (HV0.3) |
950 – 1200 |
| Manufacturing |
Agglomerated & Sintered |
|
Bonding Strength (MPa) |
> 70MPa |
| Size Fraction (µm) |
– 45 + 15 |
|
Deposited efficiency (%) |
40 – 50% |
| Spray Torch |
JP5000 |
|
Porosity (%) |
< 1% |
| Nozzle (inch) |
4 |
|
|
|
| Kerosene (L/h) |
23 |
|
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| Oxygen (L/min) |
900 |
|
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| Carrier gas (Ar) (L/min) |
8.5 |
|
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| Powder feed rate (g/min) |
80 – 100 |
|
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| Spraying distance (mm) |
340 – 380 |
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