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SAE ARP1947C

M00023052

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SAE ARP1947C Dendrite Arm Spacing of Structural Aircraft Quality D357 Aluminum Allow Castings, Determination and Acceptance of

standard by SAE International, 08/22/2018

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This document covers the recommended practice for determining the acceptability of the dendrite arm spacing (DAS) of D357-T6 aluminum alloy castings required to have tensile strength not lower than 50000 psi (345 MPa).