Steel components are heated uniformly in a tightly controlled neutral or inert furnace atmosphere. This atmosphere protects the surface from reacting with oxygen or excess carbon during heating. Once the target temperature is reached, parts are then quenched to form a hardened microstructure. Tempering is then performed as required to balance hardness and toughness.
Neutral Hardening
Neutral hardening is used to increase the hardness, strength, and wear resistance of steel components, while preventing unwanted surface chemistry changes. Parts are heated to their austenitizing temperature in a protective, neutral atmosphere, minimizing oxidation and decarburization. Parts are then quenched to achieve the desired hardness and mechanical properties.
How Neutral Hardening Works
Benefits of Neutral Hardening
01
Clean, Oxidation‑Free Surfaces
02
Prevents Decarburization
03
Improved Strength and Hardness
04
Dimensional Control
05
Versatile for Many Steel Grades
Applications
Shafts and pins
Gears and sprockets
Tooling and machinery parts
Automotive and industrial components
