This specification covers an aluminum alloy in the form of die forgings, hand forgings and forging stock. These products have been used typically for parts to be machined prior to final heat treatment requiring a combination of dimensional stability and accentuation of ultrasonic response, and to achieve maximum mechanical properties with high resistance to stress-corrosion cracking after solution and precipitation heat treatment to T73 temper, but usage is not limited to such applications.
SAE AMS4321A-1993 Referenced Document
SAE AMS2201 TOLERANCES Aluminum and Aluminum Alloy Bar, Rod and Shapes
SAE AMS2355 TENSILE TESTING OF WROUGHT ALUMINUM AND MAGNESIUM PRODUCTS Except Forgings
SAE AMS2355F-1992 Quality Assurance Sampling and Testing of Aluminum Alloys and Magnesium Alloys Wrought Products@ Except Forging Stock@ and Rolled@ Forged@ or Flash Welded Rings
SAE AMS2370 QUALITY ASSURANCE SAMPLING OF CARBON AND LOW ALLOY STEELS Wrought Products Except Forgings
SAE MAM2201-1983 Tolerances@ Metric Aluminum and Aluminum Alloy Bar@ Rod@ Wire@ and Forging Stock Rolled@ Drawn@ or Cold Finished
SAE MAM2355 QUALITY ASSURANCE SAMPLING AND TESTING OF ALUMINUM ALLOYS AND MAGNESIUM ALLOYS Wrought Products (Except Forging Stock) and Flash Welded Rings Metric (SI) Units
SAE AMS4321A-1993 history
2016SAE AMS4321B-2016 Aluminum Alloy Forgings 7.7Zn - 2.5Mg - 1.5Cu - 0.16Cr (7049-01) High Temperature Annealed (UNS A97049)
2010SAE AMS4321A-2010 Aluminum Alloy Forgings 7.7Zn - 2.5Mg - 1.5Cu - 0.16Cr (7049-01) High Temperature Annealed
1993SAE AMS4321A-1993 Aluminum Alloy Forgings 7.7Zn - 2.5Mg - 1.5Cu - 0.16Cr (7049-01) High Temperature Annealed
1992SAE AMS4321-1992 ALUMINUM ALLOY FORGINGS 7.7Zn - 2.5Mg - 1.5Cu - 0.16Cr (7049-01) High Temperature Annealed
1987SAE AMS4321-1987 ALUMINUM ALLOY FORGINGS 7.7Zn - 2.5Mg - 1.5Cu - 0.16Cr (7049-01) High Temperature Annealed (UNS A97049)