Tungsten Carbide, Chrome Carbide, & Other Metal Spray Powders for Thermal Coatings

Our crushed tungsten carbide is screened to meet a variety of different specification and sizing requirements. The crushed tungsten is of sintered tungsten carbide with a cobalt binder sometimes used by ocyecetepelene or even heat induction for brazing applications. The brazing carbide is used to produce highly wear resistant tungsten carbide composite rod, also called tungsten carbide brazing rod.

Tungsten Carbide Powders

Thermal spray coatings of tungsten carbide are used for their hardness and wear resistance. When choosing a tungsten carbide powder, the particle size and type of carbide selected are important in determining the correct material to combat various forms of erosion, abrasion, and wear. Whereas the amount of metal matrix in the coating (Nickel, Cobalt, Alloy) will depend on the toughness an abrasion resistance required.
HVOF (High Velocity Oxygen Fuel) spray uses a combination of a fuel and oxygen to produce high quality carbide coatings. The high energy output is known to produce coatings with low porosity and high bond strength. This technology is also used for temperatures between 4,000 F and 5000 F with velocities in the range of 1,500 ft/sec to 2,800 ft/sec. It’s these higher velocities that lead to greater coating thickness, lower porosity, lower oxide content, and thus better adhesion of the coating to the product.

Tungsten Carbide Powders – 88WC 12Co

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Tungsten Carbide Powders – 88WC 12Co

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Metal Spray Powder LA-4781-13 (-100 +325) FeNiAl 51/38/11, sintered

$26.99

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Metal Spray Powder LA-7347 (-100 +325) NiCrAl 75/16/9, sintered

$36.99

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Metal Spray Powder LA-7851-15 (-120 +325) NiAlMo 90/5/5, sintered

$36.99

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Metal Spray Powder LA-7981-17.2 (-140 +325) NiCrAlFeMo 75/8/7/5/5, sintered

$46.99

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Chrome Carbide Powders

Chromium Carbide powders are used for wear resistance in combination with a higher temperature capability. Chrome carbide powders are usually less wear resistant than tungsten carbide thermal spray powders, but are excellent at higher temperatures.

Chrome Carbide Powders – 75Cr3C2 25NiCr – LA-RN01S-25 (-325 +15u) Cr3C2-NiCr 76/24, sintered and crushed

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Other Metal Spray Powders

Due to the binder-less manufacturing method of these thermal spray powders, these nickel-baed metal alloy powders produce very little residue while spraying. Metal spray powders are good for build-up and repair coatings.

Metal Spray Powder LA-4781-13 (-100 +325) FeNiAl 51/38/11, sintered

$26.99

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Metal Spray Powder LA-7324 (Ni) -325 mesh X D 99.9 sintered

$39.75

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Metal Spray Powder LA-7337 (-140 +325) NiAl 95/5, sintered

$36.99

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Metal Spray Powder LA-7347 (-100 +325) NiCrAl 75/16/9, sintered

$36.99

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Thermal Spray Coating Selection Criteriay

The expense of a coating is directly dependant on the material being coated. In this regard, Tungsten Carbide coatings are a premium coating. These coatings are often preferred when parts have undergone irreversible damage by wear or erosion and coating is more cost effective than buying new. In such conditions, WC coatings are a cheaper and feasible solution.
They are primarily used where excellent wear resistance is the main requirement; as its wear resistance surpasses its other mechanical properties.

Thermal Coating
Benefits

Less than 1%
Porosity

01

High resistance
to wear

02

Hardness
Exceeding Rc70

03

Corrosion-
resistant

04

Bonding Strength
Average of 8,500psi

05

Can be finished
down to 6 Ra

06

Applications for
Thermal Spray Coating

Thermal spraying is used in a variety of coating processes including Plasma Spraying, HVOF Spraying, Arc Spraying and Flame Combustion Spraying. These processes are also called Metalizing Spraying. Coating quality is usually assessed by its porosity, oxide content, macro and micro-hardness, bond strength and surface roughness. Generally higher particle velocity results in higher coating quality.
  • Corrosion/Galvanic Protection
  • Dimensional Restoration
  • Electrical Insulation
  • EMI/RFI Shielding
  • Emissivity
  • Erosion Resistant
  • Galling Resistant
  • Bio-Fouling
  • Decorative/Cosmetic Marking
  • Hard Chrome Replacement
  • Low Friction Release
  • Chemically Strippable

Need Powder for with Thermal Coating Applications?

Have questions regardign pricing or looking for other information? Contact us today! Give us a call at281-426-5535or click the button below.
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FAQ

What is Thermal Spray?
Thermal spray is a method of depositing a coating by means of melting the metal powder and accelerating it into a substrate to achieve a given thickness.
Heat sources typically define the type of thermal spraying. Combustion spray, HVOF (High-velocity oxy-fuel), plasma spraying, and wire arc are a few of the most common forms.
Standardly, the percent of metal matrix is able to be modified to the customer specification.

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