Elements of Tempering, Normalizing, and Annealing
Department of Education Elements of Tempering, Normalizing, and Annealing AVA08799 – 1994 Explains how steel is tempered, how the structure, toughness, and hardness of plain carbon steel changes at progressive tempering stages, and how steel is normalized and annealed. Describes the results.

I like these videos, they don’t fluff anything up. I learn so much better that way, strait to the point no BS.
That’s what I like about Mech. Engineering. You can’t watch a computer education video that is more than a year old.
Very good helped a lot Great!
Brilliant video!
I learned. Thanks!
These old videos are grate at explaining things. It is a shame we have lost so many of these.
Very useful information!
Thanks! Still good stuff.