Tungsten Carbide - Cemented tungsten carbides are derived from a high percentage of tungsten carbide particles bonded together by a ductile metal. The common binders used for seal rings are nickel and cobalt. The resultant properties are dependent upon the tungsten matrix and percentage of binder (typically 6 to 15% by weight per volume). Tungsten carbide is an extremely tough material with good wear resistance, with Nickel bound being the most common material used in midstream pipeline applications. Seal rings in this material offer improved protection against mechanical or thermal shock, but will be limited in PV characteristics and are more susceptible to heat checking damage when compared against advanced ceramics.

Tungsten carbide(TC) is widely used as seal faces or rings with resistant-wearing, high fractural strength,high thermal conductivity, small heat expansion co-efficient. The tungsten carbide seal-ring can be divided into both of rotating seal-ring and static seal-ring. The two most common variations of tungsten carbide seal faces/ring are cobalt binder and nickel binder.

ND carbide produces seal rings in several grade types including an entire family of nickel-bonded grades that provide superior corrosion resistance.N&D Carbide’s standard lapped and polished seal faces are flat within 1 helium light bands. ND Carbide manufactures to customer specifications only - you get the exact tolerances, finishes, and carbide grade that your application demands.

In high-speed fluid machinery, the Tungsten Carbide Thrust Washer (also known as a thrust friction plate) is the critical component that absorbs heavy axial loads and prevents metal-to-metal galling under severe operational stress.

Unlike standard sealing elements, these heavy-duty thrust rings are engineered specifically for continuous rotary friction inside submersible pumps, chemical agitators, marine thrusters, and slurry pumps. At ND Carbide, our 22 years of API-certified manufacturing expertise allows us to deliver washers that maintain exceptional dimensional stability even when exposed to high-velocity particle erosion and violent hydraulic shocks.

We specialize in 100% non-standard manufacturing based on your unique engineering prints. Our modern workshop processes everything from micro-washers to ultra-large scale thrust plates (Outer Diameters from 10mm up to 800mm). Through advanced surface grinding and precision profiling, we ensure that inner/outer diameters, thickness parallelism, and concentricity strictly adhere to your drawing's tightest tolerance zones.