Showing posts with label Titanium Nitride Coating. Show all posts
Showing posts with label Titanium Nitride Coating. Show all posts

Sunday, 25 October 2015

What is TiN (titanium nitride coating)?

TiN-coated drill bit


Titanium nitride (TiN) (sometimes known as “Tinite” or “TiNite” or “TiN”) is an extremely hard ceramic material, often used as a coating on titanium alloys, steel, carbide, and aluminium components to improve the substrate's surface properties.

Applied as a thin coating, TiN is used to harden and protect cutting and sliding surfaces, for decorative purposes (due to its gold appearance), and as a non-toxic exterior for medical implants. In most applications a coating of less than 5 micrometres (0.00020 in) is applied.

The titanium nitride coating TiN was introduced by India Carbide and it remains a proven and versatile standard coating. It provides effective protection against abrasive and adhesive wear. It is often applied for its decorative effect or as a wear indicator.

Coating Properties:

        1. Coating Material                           :  TiN
        2. Hardness (HV 0.05)                      :  2,400
        3. Coating Temperature (°F)             :  930
        4. Friction Coefficient on Steel (dry)   :  0.5
        5. Thickness (µm)                            :  1.5 - 3
        6. Oxidation Resistance (°F)             :   1,100
        7. Color                                           :  Gold
        8. Foodstuff-neutral                         :   Yes


Recommended applications of TiN Coating:

  1. steel cutting
  2. punching and forming (when working low-hardness materials)
  3. molds for the injection molding of plastics
  4. plungers of diesel injection pumps
  5. medical instruments