What is TiN (titanium nitride coating)?

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

Four-Facet Point Improves Drill’s Centering

        The solid-carbide Universal Drill from India Carbide Cutter combines a multi-purpose geometry with advanced coating technology to provide reliable, predictable tool life and a lower cost per hole, especially in high-volume production environments. The drill’s rigid, four-facet point geometry provides good centering capability tolerance and is easy to regrind, according to the company. A polished aluminum-chromium-nitride coating gives the drill high abrasion resistance, toughness and good chip evacuation capabilities. Well-suited for hole-making applications in a variety of workpiece materials, including steels, stainless steels and cast irons, the Universal Drill’s versatility can reduce required tooling inventories. Available drill diameters range from 3 to 32 mm in increments of 0.1 mm.