In normalizing of hypoeutectoid steel, the component is heated to a temperature above _____

Tempering is a heat treatment process that improves the mechanical properties of a material. It's used in metallurgy and glass, and is mostly applied to steels.  Tempering involves heating the metal to a precise temperature below the critical point. It's often done in air, vacuum, or inert atmospheres.  Tempering has the effect of toughening by lessening brittleness and reducing internal stresses.  Tempering is also referred to as drawing.  Differential tempering is a method that applies different levels of temper to different areas of steel. It's often used in blade making, providing a... Show more

Tempering is a heat treatment process that improves the mechanical properties of a material. It's used in metallurgy and glass, and is mostly applied to steels. 
Tempering involves heating the metal to a precise temperature below the critical point. It's often done in air, vacuum, or inert atmospheres. 
Tempering has the effect of toughening by lessening brittleness and reducing internal stresses. 
Tempering is also referred to as drawing. 
Differential tempering is a method that applies different levels of temper to different areas of steel. It's often used in blade making, providing a hard edge, while softening the spine or center of the blade.

How tempering works:
Reheat a previously hardened or quenched material to a specific temperature.
Cool it in a controlled manner. 

Related Test: Manufacturing Engineering Practice Test: Heat Transfer

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