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From: "Jim Wilkins" <muratlanne@gmail.com>
Newsgroups: sci.engr.joining.welding,rec.crafts.metalworking
Subject: Re: 309SS or ER70S6
Date: Tue, 23 Jul 2024 09:29:38 -0400
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"Snag"  wrote in message news:v7o9n9$17apc$1@dont-email.me...

   My neighbor has asked me to build up a worn spot on the drive pin of
his framing nailer . I'm not sure what model it is . The pin has wear on
the flat side at the tip , and it appears to be from sliding against the
head of the next nail in line . I'm considering using SS for better
abrasion resistance . The pin is not particularly hard , can be marked
with a file , but "mushrooming" in the repaired area is also a
consideration . Replacement pins are available ...
-- 
Snag
  Illegitimi non carborundum
------------------------------------
I thought the abrasion and galling resistance of stainless was worse than 
carbon steel. Since I don't have the equipment to measure the hardness of 
worn small parts or shop-made substitutes I try to replace them. My 
Scleroscope clearly doesn't read correctly on small pieces like HSS lathe 
bits, even if clamped in the milling vise. It seems right on large ones.