Astm b61 assn std single material response overall or mil-b-16541 mil spec single material response overall
Mil-b-16541 mil spec 1st material response overall or qq-c-390,alloy c90300 fed spec 2nd material response overall
Astm b61 assn std 1st material response and mil-b-16541 mil spec 2nd material response and qq-c-390 fed spec 3rd material response
Qq-c-390 fed spec single material response overall or astm b61 assn std single material response overall or mil-b-16541 mil spec single material response overall