Jominey End Quench

The hardenability of an alloy is measured by a Jominy End Quench Test, also called a Jominy Hardenability Test or Jominy Test.

  • Hardenability refers to the test specimen’s ability to be hardened to a particular depth under a particular set of conditions.
  • The jominy end quench test provides information needed for selecting the proper combination of alloy steel and heat treatment to minimize thermal stresses and distortion when manufacturing components of various sizes.
  • The test is conducted by first heating the specimen, then quenching and finally grinding a flat surface before taking hardness measurements along the rust on the sample.