Thread: Tempering question

I temper in the house oven. I picked up a old tin pan at a garage sale and put about 1/2" of play sand in it. I pre-heat to whatever temp I am shooting for (varies for steels, my norm is 375-425F). I have another temp guage inside the oven to double check the temperatures before adding the steel. I usually go for two one hour cycles for steel under 3/8"