Given the brittleness and cost of solid carbide, full solid shafts are rare. Practical manufacturing focuses on creating a composite structure that marries the wear resistance of carbide with the toughness and machinability of steel. The two primary configurations are:

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  Solid Tungsten Carbide Shafts: Used in specialized, small-scale precision pumps (e.g., in chemical metering). These are produced via powder metallurgy: carbide and binder powders are compacted and sintered, then precision ground to exact tolerances.

  
  


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  Carbide-Sleeved or Clad Shafts (The Industry Standard): A thick-walled tungsten carbide sleeve is manufactured via sintering. This sleeve is then shrunk-fit, brazed, or mechanically locked onto a high-strength alloy steel core shaft. This creates a perfect synergy: the carbide provides a seamless, impervious wear surface in the critical seal/packing zone, while the steel core provides torsional strength, impact resistance, and allows for standard machining of ends for couplings and bearings.