Flame Hardening Steel Grades

The metals are heated to temperatures to their austenization temperature causing the surface to change while the core remains unchanged and soft.

Flame hardening steel grades.

The process of flame hardening. Flame hardening is performed on parts made of mild steels alloy steels medium carbon steels and cast iron. Then use a pair of tongs to carry the steel to a container filled with water or vegetable and submerge the hot metal in the liquid. Flame hardening is similar to induction hardening in that it is a surface hardening process.

To harden steel start by heating the metal directly with a blow torch until it turns a cherry red color. The hardness of steels can be increased using various processes such as surface flame and induction hardening as well as nitriding. Hold the steel directly in the flame. Flame hardening sometimes begins with a preheat operation depending on the alloy and degree of machining.

Keep a grade b fire extinguisher nearby in case of a fire. Factors that affect the depth of hardness achievable in steels and relationships between hardness and tensile strength are also outlined. Depending on the amount of time and temperature the affected area can vary in carbon content. As its name suggests flame hardening uses direct heat from oxy gas flames.

Carburising carburizing chiefly american english or carburisation is a heat treatment process in which iron or steel absorbs carbon while the metal is heated in the presence of a carbon bearing material such as charcoal or carbon monoxide the intent is to make the metal harder. Heat is applied to the part being hardened using an oxy acetylene or similar gas flame on the surface of the steel being hardened and heating the surface above the upper critical temperature before quenching the steel in a spray of water.