Spherical Tungsten Carbide Cobalt (WC-Co) Powder
Tungsten Carbide Cobalt (WC-Co) powder, consisting of tungsten carbide (WC) cemented with a cobalt (Co) binder. Our WC-Co powder with 6%, 10%, 12% cobalt contents and 15–45 µm particle sizes, is widely used for thermal spray coatings, hot Isostatic Pressing (HIP), Powder Injection Molding (PIM), and Additive Manufacturing (AM) such as selective laser melting and directed energy deposition.
Tungsten Carbide Cobalt powder has exceptional hardness, toughness, and wear resistance. It is widely used for cutting tools, mining tools, wear-resistant components, and spray coatings.
| Product Code | PWC010 |
Morphology | Spherical |
Appearance | Gray powder |
Composition | WC-6Co, WC-12Co, Tungsten Carbide Cobalt (WC-Co) |
Particles Size | nanoparticles, 15-45 μm, 53-150 μm |
Density | 3.9 g/cm³ |
CAS Number | 12070-12-1/7440-48-4 |
Purity | 99.9% |
Description of WC-Co Powder
Main properties of WC-Co Powder
- Composition: WC with 6–12 wt% Co (customizable)
- Appearance: Grey to dark grey powder
- Particle Sizes: 1-15 µm, 15–45 µm, 45–105 µm, nano powder available
- Purity: High-purity raw materials, low oxygen content
- Applications: Cutting tools, dies, wear-resistant parts, thermal spray coatings, AM feedstock
WC-12Co alloy powder Chemical Composition/Properties
| Element | Value (%) | Test Method |
| W | Bal. | ICP-AES |
| Co | 11.7 | ICP-AES |
| Fe | 0.021 | ICP-AES |
| Ni | 0.025 | ICP-AES |
| Nb | 0.002 | ICP-AES |
| Others | ≤0.1 | ICP-AES |
| Total C | 5.2–5.6 | GB/T 5124.1-2008 |
| Free C | 0.03 | GB/T 5124.2-2008 |
| O | 0.03 | GB/T 4324-2012 |
| Property | Value (g/cm³) | Test Standard |
| Apparent Density | 7.28 | GB/T 1479-1984 |
| Tap Density | 8.01 | GB/T 5162-2006 |
| Hall Flow Rate | 7.86 | GB/T 1482-2010 |
Application of Spherical casting WC-Co alloy powder
- Metal cutting tools (milling, drilling, turning)
- Mining and construction tools
- Wear-resistant components in oil & gas and aerospace
- Thermal spray coatings for corrosion and wear protection
- Additive Manufacturing with binder jetting, SLM, DED
WC-Co powder Scholar Articles
Powder/processing/structure relationships in WC-Co thermal spray coatings: a review of the published literature
Abstract: The purpose of this review is to identify broad trends in the powder/processing/structure relationships of WC-Co coatings, classified according to powder type and spray method. Detailed comparisons of coating microstructures, powder phase compositions and coating phase compositions as reported by different researchers are given in tabular form and discussed. The emphasis is on the phase changes that occur during spraying. This review concerns only WC-12% Co and WC-17% Co coatings, and contrasts the coatings obtained from the cast and crushed, sintered and crushed, and agglomerated and densified powder types.
FAQ WC-Co powder
What are the typical cobalt contents in WC-Co powders?
Common cobalt contents are 6%, 10%, and 12% by weight. Higher cobalt increases toughness, while lower cobalt improves hardness.
Can WC-Co powder be used in additive manufacturing?
Yes, spherical WC-Co powder with controlled PSD and flowability is suitable for AM methods like Selective Laser Melting (SLM), Directed Energy Deposition (DED), and Binder Jetting.
Is your WC-Co powder suitable for thermal spray coatings?
Yes. Agglomerated & sintered WC-Co powders with high density and spherical morphology are ideal for HVOF and plasma spraying applications.
How do you control the oxygen content in WC-Co powder?
We employ vacuum sintering and inert atmosphere processing to ensure low oxygen content and prevent cobalt oxidation, enhancing powder stability.