The hardenabilities of these materials vary greatly.

The hardenability of the steel determines its ability to be hardened by heat treatment.

The doctor said that the hardenings on my skin are harmless.

Harden is a popular surname in many English-speaking countries.

The Hardens are a talented basketball family.

Radiation hardening is the process of making electronic components and systems resistant to damage or malfunctions caused by ionizing radiation.

The steel is case hardening to increase its durability.

Case hardening is a heat treatment process used to increase the surface hardness of a material.

Case-hardening is a process used to harden the surface of a metal.

He tried to case harden the steel to make it more durable.