Control furnaces that harden, anneal, or temper watch parts.
picture of Hardener

Quick Stats

Salary Range
$21,000 – $49,000

Data from U.S. Department of Labor

What do Hardeners do?

Controls furnace to harden, anneal, or temper watch parts: Presses button to admit gas mixture, forcing air out of furnace and burning mixture at entrance to prevent discoloration of parts and to maintain carbon content in parts. Places parts in metal basket or cylinder and inserts parts into furnace according to specified temperature. Advises on furnace temperatures and heat-treating time periods, and recommends procedures to produce desired hardness. Quenches pieces with air or oil. May cover parts with charcoal to prevent rapid heating causing discoloration of parts. May insert thermocouple into furnace and connect thermocouple to recorder.

Should I be a Hardener?

You should have a high school degree or higher and share these traits:
  • Independent: You enjoy flying solo and doing things your own way.
  • Levelheaded: You hold your emotions in check, even in tough situations.
  • Detail Oriented: You pay close attention to all the little details.

  • Also known as: Cyanide Pot Hardener, Die Hardener, Face Hardener, Flame Hardener, Metal Hardener, Tool Hardener

    How to become a Hardener

    Most Hardeners have no higher education and get on-the-job training. Think about earning a Certificate to increase your competitiveness in the field. Chart?chd=s:9saaaa&chl=no+college+%2877%25%29|certificate+%2823%25%29||||&cht=p3&chs=466x180&chxr=0,77,77
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