Alternative to Tungsten Carbide is Nicarb Coating: A Cost-Effective Solution

In recent years, tungsten carbide has been the go-to material for extreme wear and abrasion resistance across a wide range of industrial applications. However, with raw material costs for tungsten continuing to climb, many companies are actively seeking viable alternatives that can deliver strong performance without the high price tag.

At DuraTech Processes, we are experts in plating Nicarb – a composite electroless nickel coating reinforced with silicon carbide particles. We have recently received continuous inbound inquiries as customers consider switching from tungsten carbide to other superior-performance but less expensive materials.

What is Nicarb Coating?

Nicarb is an electroless nickel composite coating that incorporates hard silicon carbide (SiC) particles into a nickel-phosphorus matrix. The result is a durable, uniform coating that combines the corrosion resistance and conformability of electroless nickel with the wear resistance provided by the silicon carbide particles. Unlike thermal spray tungsten carbide coatings, Nicarb is applied through a chemical deposition process. This allows for excellent uniformity, even on complex geometries, internal surfaces, and parts with threads or tight tolerances. 

Tungsten Carbide vs NiCarb Coating: Key Comparison

Key Benefits of Nicarb Coating

Here are the main advantages we’re seeing in our testing:

• Significant Cost Savings
  With tungsten carbide prices at elevated levels, Nicarb offers substantial cost reduction while still delivering strong wear performance in many applications.
• Superior Uniformity
  Because it is applied through an electroless process, Nicarb provides consistent coating thickness on complex shapes, bores, and internal surfaces where thermal spray coatings often struggle.
• Excellent Corrosion Resistance
  The nickel matrix provides better inherent corrosion protection than traditional tungsten carbide coatings, making Nicarb a strong choice in harsh or corrosive environments.
• Good Balance of Hardness and Toughness
  While tungsten carbide is harder, Nicarb’s combination of hard silicon carbide particles in a tougher nickel matrix often provides better resistance to impact and chipping.
• Versatile Application
  Nicarb can be applied to a wide range of substrates and part geometries with minimal distortion or need for post-machining in many cases.

Where Nicarb Performs Well as a Tungsten Carbide Alternative

Based on our recent testing, Nicarb has shown strong potential in applications such as:

Pump components and impellers

• • Hydraulic cylinders and rods
  • Valve parts and seats
  • Rollers and shafts
  • Oil & gas downhole tools
  • Food processing and packaging equipment
  • Textile and paper industry components

While tungsten carbide remains the benchmark for the most extreme wear applications, it is no longer the only option. For many parts and operating conditions, Nicarb (composite electroless nickel with silicon carbide) offers an excellent combination of performance, corrosion resistance, and cost-effectiveness. As material costs continue to fluctuate, more manufacturers are reevaluating their coating choices. Nicarb is a solution worth serious consideration.