Historical
SAE AMS 4640H-2011 (SAE AMS4640H-2011)
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. These products have been used typically for parts requiring strength and wear resistance at moderate temperatures, but usage is not limited to such applications.
Society of Automotive Engineers [sae]