Author Topic: heat treating (Read 1185 times)

buck1 · « **on:** February 13, 2005, 06:17:01 PM »

Veral, I have read your fine book about a dozen times. every time I read it I learn something else.
I am just starting out in heat treating. My WW+2%tin alloy, when heat soaked just under slumping for 1 hour will get to 22BHN. I am wanting 30 to 35.
In your book you mention the use of up to 10% shot in a alloy for better heat treating results.
I'm not much of a shot gunner and lead shot types are greek to me.
what shot do I need to get? Chilled?
Thanks for your time, I know your very busy. .....buck

Veral · « **Reply #1 on:** February 13, 2005, 07:47:34 PM »

I suspect that you may be taking too long to get from the oven to the water. I've found that if it takes more than a couple seconds before the bullets are under water, full hardness will not be obtained.

Get the finer numbers, to get the highest arsenic content. 6-7 1/2, 8, 9.
Chilled only means chilled in water, to increase hardness, and I believe all of the finer shot is chilled.

buck1 · « **Reply #2 on:** February 14, 2005, 02:32:39 PM »

Thanks I will try to move them a little quicker!! ...buck

buck1 · « **Reply #3 on:** February 15, 2005, 03:49:30 PM »

You wrer right on the money! moveing quicker got me BHN 31! Thanks Veral!!! :grin:

Veral · « **Reply #4 on:** March 15, 2005, 06:25:02 PM »

Amazing how I knew isn't it??