Stainless Steel for models?

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DICKEYBIRD

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I did a little lathe & milling job for a friend over the weekend on a piece of non-magnetic stainless. I was dreading it, having heard the horror stories about stainless & work-hardening.

I was pleasantly surprised to say the least. It turned beautifully with my little carbide insert lathe tools, flats were milled cleanly with a HSS endmill...even a homemade roundnosed HSS form tool worked great! It worked almost as nice as leaded steel.

Anybody know what specification SS it could be? I would like to get some and use it at times. It'd be nice not having to worry about rust and discoloration from handling.
 
Old machinist's memory aid poem...

303, she's for me.
304, she's a whore.
 
I just did a little 303 turning the other day for the first time and it turned beautifully. Just HSS tooling.
It had been marked with a majic marker so I assumed (I know that's dangerous) that is what it was.
...lew...
 
;D You guys are great. 303 it is!

Now, what about "She's real fine my 409." ;)
 
416 is also free cutting, whether you get 303 or 416 depends on which your service centre has :)
 
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