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ASTM A255 Jominy Hardenability Testing

ASTM A255 Jominy testing is a very common test among steel mills. Clients require tests to confirm the effectiveness of the alloying elements for a specific steel grade.  We also provide Jominy testing in accordance with the requirements of EN ISO 642. The Jominy End Quench hardenability test has five operations to obtain the hardness test values for evaluation. The test stages are:

Jominy Hardenability Testing

  • Normalizing
  • Machining of ASTM A255 Jominy Specimen
  • End Quenching
  • Grinding of Parallel Flats
  • Hardness Testing

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SGS MSi is a leader in Jominy testing utilizing two separate position testers with eleven furnaces supporting our daily production on two shifts.  We provide Jominy testing to over ten different steel mills with rapid turn-around of Jominy test results.  Our automated Jominy hardness tester provides both numerical and graphical output.  High volume – rapid turn-around of Jominy test specimens and hardness data is one of our specialties.