Standard Specification for
Copper-Beryllium Alloy Seamless Tube1
This standard is issued under the fixed designation B 643; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
Click below to download Astm B 643 – 00e1 Pdf free
Click here to download Astm B 640 – 00 Pdf Free Download