On 4/14/2018 4:41 PM, Ed Huntress wrote:
On Sat, 14 Apr 2018 15:16:49 -0700, Bob La Londe
wrote:

303 Stainless Doesn't Work Harden!!! ... or does it???


https://www.hobby-machinist.com/thre...ar-trim.68771/

LOL. I give up.

303 does work-harden, like other austenitic grades. Although the
sulphur content makes it relatively free-machining, it will still
harden up like a s.o.b. if your tools are not sharp.

I guess you know not to try to weld it.



Yeah. Maybe outside of my skill set, but when I sought MFG sources to
back up my claims that it does work harden I discovered that it is
reported to be weldable, but difficult.

This is from the Penn Stainless website:

Welding Characteristics
* Not generally recommended, but may be welded with some difficulty
* May be welded with Alloy 310 electrodes
* Should be annealed after welding to re-dissolve precipitated carbides

I won't be trying it any time soon.

************

DANG-IT! I've been using Thunderbird for a couple months now and I
still keep hitting the reply button in Usenet groups instead of the
follow up button.