Hikari Corporation

Last time, I introduced three types of tempering.

As you may repeat, quenchig and tempering are basically done as a set.

Remember that.

This time, I will introduce each one.

(1) Low temperature tempering

Bake at 150°C to 200°C.

Reduces the thickness while maintaining the thickness.

It is quite hard, but it will be a steel that can be deformed somewhat.

It is a material for tools and gauges.

 

(2) Medium temperature tempering

Bake at 400°C to 550°C.

It has moderate thickness and sticky strength, and has springiness.

It is used for cutlery.

(3) High temperature tempering

Bake at 550°C to 650°C.

However, it becomes steel characterized by the sticky strength.

It is used for gears, etc.