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WC-15NiCr 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 density coating has high hardness with excellent resistance to abrasive wear, sliding wear, erosion wear, and cavitation.
  • NiCr has better corrosion resistance than Cobalt, CoCr, and excellent resistance to seawater (Saltwater) corrosion.
  • Mainly used in oil field equipment, ball valves (oxidizing environment), hydraulic gate levers, transportation container hydraulic levers, the petrochemical industry, offshore equipment, parts, etc.

Grade & Chemical Composition

Grade

Chemical Composition (Wt, %)

W

T. C 

Cr

Ni

Fe

O

ZTC4CD*

Balance

5.0 – 5.4

2.5 – 3.5

11.5 – 12.5

≤ 0.5

≤ 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

ZTC4C51D

             WC – Ni – Cr

85/12/3

Agglomerated

& Sintered

– 53 + 20

≥ 4

≤ 18
  • HVOF

(JP5000 & JP8000, DJ2600 & DJ2700, JetKote,

Woka Jet, K2)

  • HVAF
  • APS

ZTC4C53D

– 45 + 20

≥ 4

≤ 18

ZTC4C52D

– 45 + 15

≥ 4

≤ 18

ZTC4C81D

– 45 + 11

≥ 4

≤ 18

ZTC4C54D

– 38 + 10

≥ 4

≤ 18

ZTC4C82D

– 30 + 10

≥ 4

≤ 30
We can tailor-make different particle size distributions and apparent densities for various applications.
Recommended Spray Parameters (HVOF)

Coating Properties
Material

WC – 15NiCr

Hardness (HV0.3)

1000 – 1350
Manufacturing

Agglomerated & Sintered

Bonding Strength (MPa)

> 70MPa
Size Fraction (µm)

– 45 + 15

Deposited efficiency (%)

35 – 50%
Spray Torch

JP5000

Porosity (%)

< 1%
Nozzle (inch)

6

Kerosene (L/h)

23

Oxygen (L/min)

900

Carrier gas (Ar) (L/min)

8.5

Powder feed rate (g/min)

70 – 80

Spraying distance (mm)

340 – 380