The tasks a Hardener Metal is expected to perform include:
• Hardening metal articles such as tools, machine parts, etc. for tempering and other purposes
• Putting metal articles in pre-heating furnace for heating
• Controlling the furnace temperature and heating charges to prescribed temperature depending upon type of steel
• Allowing charges to remain in furnace for required period according to size, composition and type of steel
• Transferring charges to hardening furnace and controlling its temperature to prescribed degree according to size, composition and type of steel