To recap some of what we saw last month, we set out the basic concepts and began reviewing the experimental procedure and results. These results are discussed and summarized here.

The Jominy end-quench test is used to measure the hardenability of a steel, which is a measure of the capacity of the steel to harden in depth under a given set of conditions. This article considers the basic concepts of hardenability and the Jominy test.

In order for manufacturers and heat treaters to make an informed decision on what case-hardening equipment to purchase, they must have more than a theoretical knowledge of the processes they may be considering.

Advanced material solutions for fixtures, grids and internal furnace components are available today. They are designed to allow for higher processing temperatures, larger loads, increased production rates, energy savings and lower overall cycle costs.

Hardenability is the ability of steel to partially or completely transform from austenite to some fraction of martensite at a given depth below the surface when cooled under a certain condition. The “gold standard” test for all hardenability results has always been the “Jominy End-Quench Test.”