Expendable thermocouple tip(604 shape)

It's the tip of the thermocouple, which insert into the molten metal for measuring the temperature in the steel making industry.

Thyermocouple tip:

There're four types of the thermocouple tip,type KS/KB/KR/KWre.

It is the tip/head of the thermocouple that insert this part into the molten steel/iron
to measure the temperature.

The shape of the tip bottom is round,which we called type 602 thermocoupe tip.