Browse Standards ARP1947
Historical ISSUED 1985-10-01

DENDRITE ARM SPACING OF STRUCTURAL AIRCRAFT QUALITY D357 ALUMINUM ALLOY CASTINGS, DETERMINATION AND ACCEPTANCE OF ARP1947

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).
ARP1947C
2018-08-22
Latest
Revised
ARP1947B
2007-08-17
Historical
Revised
ARP1947A
1996-07-01
Historical
Reaffirmed
ARP1947
1985-10-01
Historical
Issued

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