OK, I'll try this again. Read THIS . Here's a small piece of what you'll find...

SECOND BRANCH:

CHROMIUM CONTAINING
The second branch also contain 12 to 18% chromium BUT has a LOWER carbon level (less than 0.2%). Since the carbon is low, these grades have a different metallurgical structure and are called "Ferritic" stainless steels. They have the following characteristics:

Are magnetic
CANNOT be hardened by "heat treatment" (always used in the annealed or softened condition)
Weldability is still poor

Common Uses:

Automotive exhaust and fuel lines
Architectural trim
Cooking utensils
Bank vaults

[ 01-21-2002: Message edited by: ILUVMYX ]