nvn, Thanks for the info. Since 4% is not that much different, that gives me relief to go ahead with SS. From what I can tell no other SS grade is commonly available in my size requirement.
Painting or coating is certainly a possibility. That's another avenue I may experiment with. Part of the problem with aluminum on aluminum, in my application, is even if one surface is painted, metal shards will be thrown between the base of the circular saw and the rail it glides across. My...
What I need is a 1"x.5" rectangular tube .065" wall and 84" long steel tube that will have the least or very low deflection. I have been trying to educate myself today on the different grades of SS which would be preferable for rust resistance. If I understand things correctly 304 SS is the...