On Thu, 26 May 2016 15:31:11 -0500, "Terry Coombs"
wrote:

Steven wrote:
replying to pogo, Steven wrote:
The first digit is the alloy type second digit is the modification of
the alloy and the last two digits are the purity of the aluminum so
6061 means that in this case magnesium and silicon were added to the
aluminum and that it was not modified and it is 61 percent pure
aluminum

Bull**** , look it up . 6061 is approx 95% aluminum .

To be pedantic, the ASM standard specifies "Al 95.8% - 98.6%",
although the percentages of alloying elements are often specified and
then "Remainder (or Balance) - Al".

--
cheers,

John B.