Astm B 391 – 03 pdf free download

Astm B 391 – 03 pdf free download

Standard Specification for Niobium and Niobium Alloy Ingots1 This standard is issued under the fixed designation B 391; 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) … Read more