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SAE AMS 4640J-2023
Aluminum Bronze, Bars, Rods, Shapes, Tubes, and Forgings, 81.5Cu - 10.0Al - 4.8Ni - 3.0Fe, Drawn and Stress Relieved (HR50) or Temper Annealed (TQ50)
This specification covers an aluminum bronze alloy in the form of bars, rods, shapes, tubes, forgings, and forging stock (see 8.5 ).
Society of Automotive Engineers [sae]