QQ-C-390B Superseded by ASTM B Specifications

February 3, 2018


QQ-C-390B type 3 has been superseded by ASTM B505

QQ-C-390B type 2 has been superseded by ASTM B271


Notice of Cancellation for QQ-C-390B, Notice 2, October 28, 1993.


QQ-C-390B, dated December 12th, 1983 is hereby cancelled. Future procurement's for this material should refer to the appropriate portions of:


ASTM B505, Copper-base Alloy Continuous Castings

ASTM B271, Copper-base Alloy Centrifugal Castings






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