Tempering is most often performed on steel that has been heated above its upper
critical (A3) temperature and then quickly ...
Hardening is a way of making the knife steel harder. By first heating the knife
steel to between 1050 and 1090°C (1922 and 1994°F) and then quickly cooling ...
www.ask.com/youtube?q=How to Temper Steel&v=wttZMuzEN3A
Mar 24, 2012 ... How to temper steel in your backyard. We just used regular charcoal in a pit, with
the inside blower of an old hot air popcorn popper. We put ...
After quenching, the steel is very brittle. The brittleness (and hardness) is
reduced by a heat treatment called "tempering". Tempering is a specialized type
PDF FILE - CLICK HERE FOR PRINTABLE WORKSHEET. Steel can be treated
by intense heat to give it different properties of hardness and softness.
Heat treating FAQs from the anvilfire forum archives. Hardening and Tempering.
Jan 31, 2011 ... That's often the hardest part: what steel have I got here? And, which ... Temper as
soon as the steel is cool enough to handle. Temper ...
Steel parts often require a heat treatment to obtain improved mechanical
properties, such as increasing increase hardness or strength. The hardening
Back in the days before commercial tools were available, turners knew how to
harden and temper steel. They made their own tools out of carbon steel, or got ...
And there is some risk in quenching, say, an oil hardening steel in water. ... Two
ways to temper to a useable hardness/toughness: by colors or by temperature.