Hardenability tests determine the level of hardness penetration (hardenability) in metals. Hardenability test is a test that determines how materials are hardened. The 50% martensite can be from the outer surface of the metal to the inner part while other products, which can be soft core, occupy the remaining inner part. The criterion for hardening of metals is necessary for metallurgical engineering applications. If any other criterion is used apart from that which is universally accepted, it is indicated on the product. The 50% martensite and 50% other products have been used in production of most alloy steels. Other criterion can be 90% martensite and 10% other products. Universally agreed criterion of hardenability is the depth which contains 50% martensite and 50% other products. Most of the discussion on this topic will be based on steel as one of the metals that play important role in many metallurgical industries. The amount of the carbon content in the steel.In a nutshell, hardenability is dependent on the following: There are certain properties that determine the hardenability of any metal. Factors Affecting the Hardenability of Metals (Steel) The susceptibility to hardening by rapid cooling is defined as a property of steel which determines the depth and distribution of hardness produced by quenching, or as the capacity of steel to develop a desired degree of hardness is usually measured in terms of depth of penetration.

The depth of hardness penetration (on hardening) is characteristic property of steel, and is called hardenability. It is the depth of hardening on quenching any metallic material.

Hardenability is the depth to which any metal can be hardened.

Magmasoft jominy end quench