Tungsten Carbide Composite Welding Rod
WC-Co hard particles in copper-based bonding alloy for oil & gas downhole tool hardfacing.
This series of cemented carbide composite rods consist of WC-Co hard particles and copper-based (Ag/Ni contained) bonding alloy, manufactured via sintering process.
The carbide phase delivers excellent wear resistance, adapting to both cutting conditions with sharp-edged grains and grinding conditions with blunter grains. Applied by oxy-acetylene flame hardfacing, the well-wetting matrix forms a stable, metallurgically bonded layer with high hardness and moderate toughness.
Available in various particle sizes and filling ratios with customizable specifications, they are widely used in downhole tools, hole openers, milling & fishing tools, centralizers, mining and construction machinery parts for surface strengthening and repair, greatly extending service life and cutting maintenance costs.
Key Attributes
- Dimensions Wide 13-14mm, length 450mm
- Grade Series NE-WC-Comp
- Brand NE Tool
Tungsten Carbide Composite Welding Rod - Grade Selection
6 grades available in this series. Custom particle-size cuts and chemistries available on request.
| Product Grade | Chemical Composition | Manufacturing Process | Hardness (HRC) | Application Process | Typical Applications |
|---|---|---|---|---|---|
| NE-WC-C-6860 | 40%CuNiZn Alloy + 60%WC, 6.4-8.0mm | Extrusion & Drawing | 35-42 | OFS/CAW | Guide rolls, wire dies, shaft & seal hardfacing |
| NE-WC-C-1370 | 30%CuNiZn Alloy + 70%WC, 1.6-3.2mm | Extrusion & Drawing | 38-45 | OFS/CAW | Precision dies, textile guides, small wear parts |
| NE-WC-C-3460 | 40%CuNiZn Alloy + 60%WC, 3.2-4.8mm | Extrusion & Drawing | 35-42 | OFS/CAW | Conveyor screws, pump parts, general wear repair |
| NE-WC-C-3470 | 30%CuNiZn Alloy + 70%WC, 3.2-4.8mm | Extrusion & Drawing | 38-45 | OFS/CAW | Bucket teeth, blades, heavy abrasion hardfacing |
| NE-WC-C-4670 | 30%CuNiZn Alloy + 70%WC, 4.8-6.4mm | Extrusion & Drawing | 38-45 | OFS/CAW | Mining parts, construction machinery on-site repair |
| NE-WC-C-8170 | 30%CuNiZn Alloy + 70%WC, 8.0-9.5mm | Extrusion & Drawing | 38-45 | OFS/CAW | Large crusher parts, heavy-duty wear components |
How to Specify & Apply
Identify the Service Envelope
Determine the dominant wear mode (abrasion, erosion, adhesion, corrosion, oxidation), operating temperature and impact load. This narrows the grade selection to 2-3 candidates.
Match the Process
Each grade is validated for specific deposition processes. The "Application Process" field above shows HVOF, HVAF, APS, PTA, LMD, OFS or CAW compatibility.
Choose the Particle Size
Particle size controls deposit density and surface finish. Fine cuts (15-30um) for thin dense coatings; coarser cuts (45-90um) for thick build-up and high deposition rate.
Request a Sample
Most grades ship with a 1-2 kg sample for in-house process qualification. Our engineers will support parameter development on your equipment.
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