To that end, this beginner lesson in heat-treating steel from [Blondihacks] demonstrates ... At this point the metal can also be tempered, which restores some of its toughness while maintaining ...

The good quality of steel is shown by its being homogeneous, being easily worked at the forge, by its hardening and tempering well, by its resisting or overcoming forces, and by its elasticity.

Tempering valves and thermally actuated valves contain a thermal sensing component that opens or closes in response to temperature changes. They are used to regulate the temperature of hot water and ...