From: muratlanne@gmail.com   
      
   "Bob La Londe"  wrote in message news:10kgi8h$2o03r$1@dont-email.me...   
      
   I was not aware of a brittleness property, but that may be a function of   
   treatment.  It is used for multiple firearms actions including for home   
   builders in the rather brutal 1911 series.  Of course it was the magic   
   answer to toughness and corrosion resistance for the M16A1 in Vietnam   
   over previous alloys.   
   Bob La Londe   
   ------------------------------------   
      
   I haven't found a clear and not highly technical reference on its properties   
   for you. One showed fatigue life around 1000 cycles near yield strength,   
   rapidly increasing below it. Another mentioned that sanding parallel to the   
   stress with 150 grit paper was as effective as buffing to remove scratches   
   that could initiate notch cracking. The M16 bolt locks into the barrel   
   extension and doesn't stress the receiver. Likewise the 1911 barrel locks   
   into grooves in the slide, not the frame.   
      
   The aerospace advice I heard was to look closely at its strengths and   
   liabilities before designing with it.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)