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  2. Tungsten carbide - Wikipedia

    en.wikipedia.org/wiki/Tungsten_carbide

    Tungsten carbide (chemical formula: WC) is a chemical compound (specifically, a carbide) containing equal parts of tungsten and carbon atoms. In its most basic form, tungsten carbide is a fine gray powder, but it can be pressed and formed into shapes through sintering [7] for use in industrial machinery,engineering facility,mold industry,cutting tools, chisels, abrasives, armor-piercing ...

  3. Tungsten - Wikipedia

    en.wikipedia.org/wiki/Tungsten

    The jewelry industry makes rings of sintered tungsten carbide, tungsten carbide/metal composites, and also metallic tungsten. [76] WC/metal composite rings use nickel as the metal matrix in place of cobalt because it takes a higher luster when polished. Sometimes manufacturers or retailers refer to tungsten carbide as a metal, but it is a ...

  4. Visual markers of marital status - Wikipedia

    en.wikipedia.org/wiki/Visual_markers_of_marital...

    Manual laborers sometimes wear rings of inexpensive or more durable materials like tungsten while working or bear an ink tattoo to avoid personal injury or damaging a ring of precious metal. Additionally, the use of silicone wedding bands has become more common among men (and women) while in a gym or other environment with potential hazards ...

  5. Cemented carbide - Wikipedia

    en.wikipedia.org/wiki/Cemented_carbide

    The first cemented carbide developed was tungsten carbide (introduced in 1927) which uses tungsten carbide particles held together by a cobalt metal binder. Since then, other cemented carbides have been developed, such as titanium carbide, which is better suited for cutting steel, and tantalum carbide, which is tougher than tungsten carbide. [1]

  6. End-face mechanical seal - Wikipedia

    en.wikipedia.org/wiki/End-face_mechanical_seal

    The seal ring and mating ring are sometimes referred to as the primary sealing surfaces. The primary sealing surfaces are the heart of the end-face mechanical seal. A common material combination for the primary sealing surfaces is a hard material, such as silicon carbide, ceramic or tungsten carbide and a softer material, such as carbon. Many ...

  7. Improved Outer Tactical Vest - Wikipedia

    en.wikipedia.org/wiki/Improved_Outer_Tactical_Vest

    In the text "7.62mm AP/WC Protection" displayed on the back of the plate, "WC" is the chemical formula for tungsten carbide, the penetrator material of the M993 projectile. A USMC corporal showing the E-SAPI plate which successfully stopped a bullet in combat when he was hit.

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