Home / Capacity / Heat Treatment

Unispares India - Heat Treatment

Unispares India has a well-equipped heat treatment facility, which is capable of providing intricate and specific heat treatment in accordance with the client’s requirements. Moreover, all components produced for clients undergo thorough checking and inspection at every level of the process to ensure that the final product meets the required specifications. Our heat treatment unit offers the following support:


Among the various heat treatment processes, the most common one is toughening. Its purpose is to increase the hardness of the metal, and it involves subjecting the workpiece to heat at a specific temperature, followed by rapid cooling. Consequently, the resulting metal gains enhanced hardness and strength.

Case Hardening

Cases hardening, also known as surface hardening, is another type of hardening process. In this method, only the surface of the metal is subjected to hardening, leaving the deeper layers soft. The outcome is a thin layer of hard metal formed at the surface, providing it with greater hardness.


During this particular heat treatment process, the workpiece is heated in the presence of another material that releases carbon upon decomposition. The released carbon is then absorbed into the surface of the metal upon heating, resulting in a harder surface than the inner core.


Nitriding heat treatment is an effective way to harden the surface of certain metals. By diffusing nitrogen into the surface, this process creates a durable surface that is resistant to both wear and corrosion.


During the process, workpieces are heated in a sealed chamber, before nitrogen and carbon are added. The part is heated into the austenitic range, a phase change occurs and carbon and nitrogen atoms diffuse into the part. Low-carbon, low-alloy steels with low hardenability are good for this process.

Induction heat treatment

Induction heat treatment is a process used for the surface hardening of steel and other alloy components. The workpiece is heat-treated with a copper coil and is heated above the transformation temperature. The alternating current in the coil induces an alternating magnetic field within the workpiece which causes the outer surface of the part to heat to a temperature above the transformation range.

Heat Treatment - Standard and Special Parts

Manufacturers for automotive industry and the Industries using Heavy Machineries

We export our components to clients residing in USA, Germany, France and Italy ETC.

Contact Us

B-131, Phase II, Distic - Gautam Budh Nagar Noida - 201 301, Uttar Pradesh (India)
+91-9643201030, 9899269600