JOMINY END QUENCH TESTING
ATRONA has assisted customers with Jominy end quench testing. known as hardenability jominy end quench testing typically performed per ASTM A255.
Illustration by Bcartolo.
Jominy end quench is normally performed to determine the hardenability of a given steel. Steel mills use this test to certify a material's ability to properly harden when heat treated per a given chemical composition and structure.
JOMINY END QUENCH TESTING INVOLVES:
1 - Normalizing
2 - Machining ASTM A255 Specimen
3 - Heating and End Quenching
4 - Grinding Parallel Flats
5- Hardness Testing
We work with steel mills to certify steels and alloys. Inquire about our testing programs and favorable turnaround times.
Hardenability is the ability of a steel to partially or completely transform from austenite to some fraction of martensite at a given depth below the surface, when cooled under a given condition. For example, a steel of a high hardenability can transform to a high fraction of martensite to depths of several millimetres under relatively slow cooling, such as an oil quench, whereas a steel of low hardenability may only form a high fraction of martensite to a depth of less than a millimetre, even under rapid cooling such as a water quench. Hardenability therefore describes the capacity of the steel to harden in depth under a given set of conditions.