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 50,000 psi (345 MPa).
SAE ARP1947-1985 history
2018SAE ARP1947C-2018 Dendrite Arm Spacing of Structural Aircraft Quality D357 Aluminum Alloy Castings@ Determination and Acceptance of
2007SAE ARP1947B-2007 Dendrite Arm Spacing of Structural Aircraft Quality D357 Aluminum Alloy Castings, Determination and Acceptance of
1996SAE ARP1947A-1996 DENDRITE ARM SPACING OF STRUCTURAL AIRCRAFT QUALITY D357 ALUMINUM ALLOY CASTINGS, DETERMINATION AND ACCEPTANCE OF
1989SAE ARP1947A-1989 Dendrite Arm Spacing of Structural Aircraft Quality D357 Aluminum Alloy Castings, Determination and Acceptance of
1985SAE ARP1947-1985 DENDRITE ARM SPACING OF STRUCTURAL AIRCRAFT QUALITY D357 ALUMINUM ALLOY CASTINGS, DETERMINATION AND ACCEPTANCE OF