Table 60 

 MECHANICAL PROPERTIES 



Aluminum Alloys 



117 



* Specification Values: Alloy " No. 12": A. S. T. M. B26-18T, tentative specified minimums for aluminum, copper, 

 t Quenched in water from 475 C after heating in a salt bath. Modulus of elasticity for Duralumin averages 

 7000 kg/mm 2 or 10.000,000 lb/in 2 . 



% Specification values: Aluminum castings; U. S. Navy 49 Al, July 1, 1915 (Impurities: Fe max. 0.5, Si max. 0.5) 



Smithsonian Tables. 



