Hi Tom:
     
     Try getting the following Tin Research Institute publication:
     
     
     Solder Alloy Data: Mechanical properties of solders and soldered 
     joints.
     Publication #656
     
     
     Sorry I don't have a phone number but maybe some of the TechNet gang 
     can supply it. I believe that they closed all of the US offices and 
     are now running the shop out of England.
     
     A word of caution - solder fatigue data comparisons are very risky 
     because of the number of test variable differences that can result in 
     apples to oranges data sets. Publication 656 does a good job of 
     describing what/how the testing was done. It contains both 40Sn/60Pb 
     and 50Sn/50Pb solder alloys.
     
     
     Dave Hillman
     Rockwell Collins
     [log in to unmask]


______________________________ Reply Separator _________________________________
Subject: ASSY: Solder Fatigue Data Sn40 - Sn50
Author:  [log in to unmask] at ccmgw1
Date:    7/8/96 5:47 PM


Fellow TechNetters:
     
I need some information and I was hoping you could help me.  Does anyone have 
any information on solder fatigue for tin-lead solders that have between 40 and 
50 percent tin content?  Any information or leads would be appreciated.  Thanks 
in advance for any help.
     
Tom Carroll
Hughes Aircraft Co.
(310) 334-4757
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