CASE HARDENING
This is a process where only the outer of the metal component is hardened and not the core. Low carbon steels with a carbon content of 0.1% and 0.3% are usually case hardened.
BASIC HARDENING
Carbon steel are hardened by heating the steel to a certain temperature and cooled down again quickly.
Basic harden and temper gives the material a good cutting edge and a high resistance to wear.
Basic harden and temper gives the material a good cutting edge and a high resistance to wear.
TEMPERING
Hardened steel are usually brittle. Steel are then tempered to reduce the brittleness and increase the metals toughness.
ANNEALING
Annealing removes all internal stress and tension in the steel from the manufacturing process.
AUSTEMPERING
The process is an isothermal hardening procedure applied to thin sections of medium or high carbon steels, or to low alloy steels of thicker sections. It gives a much tougher product than is obtained byoil hardening and tempering the steel to the same hardness.
The process is an isothermal hardening procedure applied to thin sections of medium or high carbon steels, or to low alloy steels of thicker sections. It gives a much tougher product than is obtained byoil hardening and tempering the steel to the same hardness.
NORMALIZING
The purpose of normalizing steel is to obtain a uniform structure and improve the mechanical characteristics of the steel. Stress corrosion can occur to metals which are subjected to welding and forging. If these stresses are not relieved by a normalizing process, cracks will develop in the grain structure of the material whilst in operation.