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Aluminum Properties

COMPOSITIONA360.0
A360.0
A380.0
A380.0
383.0
-
384.0
384
A413.0
A13
B390.0
390
Silicon 9.0-10.0 7.5-9.5 9.5-11.5 10.5-12.0 11.0-13.0 16.0-18.0
Iron 1.3 1.3 1.3 1.3 1.3 1.3
Copper 0.6 3.0-4.0 2.0-3.0 3.0-4.5 1.0 4.0-5.0
Manganese 0.35 0.50 0.50 0.50 0.35 0.50
Magnesium 0.40-0.6 0.10 0.10 0.10 0.10 0.45-0.65
Nickel 0.50 0.50 0.30 0.50 0.50 0.10
Zinc 0.50 3.0 3.0 3.0 0.50 1.5
Tin 0.15 0.35 0.15 0.35 0.15 0.20
Titanium - - - - - 0.20
Total others 0.25 0.50 0.50 0.50 0.25 0.20 (0.10 ea.)
Aluminum Bal. Bal. Bal. Bal. Bal. Bal.
MECHANICAL PROPERTIES
Ultimate tensile strength (ksi) 46 47 45 48 42 40.5
Tensile yield strength (ksi) 24 23 22 24 19 35
Elongation (% in 2" G.L.) 3.5 3.5 3.5 1.0 2.5 3.5  
Hardness (HB) 75 80 80   120 85
Shear strength (ksi) 26 27 25   29  
Charpy impact strength (ft. lb. unnotched) 4.2 3.5     2.0  
Fatigue strength (ksi) (limit @ 500 million cycles) 18 20 19 20 20  
Density (lb./in.3) 0.095 0.098 0.097 0.098 0.096 0.099
Melting range (oF) approx. 1035-1105   1000-1100  960-1080 960-1080 1065-1080 945-1200
Specific heat (Btu/lb.oF) 0.23 0.23 0.23        
Coefficient of thermal expansion (in./in./oF) 11.8 11.7 11.5 11.3 10.3 11.7
Thermal conductivity (Btu/fthr.oF) 65.3 55.6 55.6 56 67.7 78.6
Electrical conductivity (% IACS) 29 31 23 23 31 25
Modulus of elasticity (106 psi) 10.3 10.3 10.3 10.3 10.3 11.9