Please fill out the form below for Copper Alloying Add and get a quote for part number ASTM B644 by American Society For Testing And with NSN 9630014082001 and FSC Name is 9630 Additive Metal Materials, please include required quantity along with expected turn around time. Our knowledgeable account manager will reply you shortly. Also check for the related parts for part number ASTM B644. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.