[Alberg30] Mast Beam Material

[Crufone at aol.com]

Hello,
I know that the number 6061 is an aluminum alloy number.  This has to do with 
everything about that particular alloy, corrosion resistance, strength, grain 
structure, finishing, cold working,  etc. and on and on.   There are 
reference books available on metallic alloys of all different types of 
materials, steel, aluminum, copper brass, etc.  A decent city library should 
have then available or if not the engineering library of a local college can 
help you.
Michael C
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