SAE ARP1947A-1989
Dendrite Arm Spacing of Structural Aircraft Quality D357 Aluminum Alloy Castings, Determination and Acceptance of

Standard No.

SAE ARP1947A-1989

Release Date

1989

Published By

Society of Automotive Engineers (SAE)

Status

Withdraw

Replace By

SAE ARP1947A-1996

Latest

SAE ARP1947C-2018

Scope

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). To apply this method, at least two coupons used for DAS measurement and tensile testing, shall be attached to the casting. Critical areas of the casting which require DAS control must be accessible for surface DAS measurements.

SAE ARP1947A-1989 history

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