OK,

Is the concept of a third stress relief heat after the annealing and coloring heats valid? If so, at what temp and for what duration? I've read instances of the metal being fairly brittle after the coloring heat and prone to flaking.

It's interesting that CS puts their temp at just a degree or two less than the 1333F critical temperature. Considering the wide range of temps used from other sources, some significantly higher.

Last edited by Ken61; 07/27/15 06:06 AM.
I prefer wood to plastic, leather to nylon, waxed cotton to Gore-Tex, and split bamboo to graphite.