Physical Properties
Metric
English
Comments





Density 		


2.67g/cc



0.0965lb/in³








Mechanical Properties
Metric
English
Comments





Hardness, Brinell 		

70.0 - 105		

70.0 - 105		

AA; Typical; 500 g load; 10 mm ball		




Hardness, Knoop 
112
112
Estimated from Brinell Hardness.




Hardness, Rockwell A 
37
37
Estimated from Brinell Hardness.




Hardness, Rockwell B 
55
55
Estimated from Brinell Hardness.




Hardness, Vickers 
99
99
Estimated from Brinell Hardness.




Tensile Strength, Ultimate 

>= 234MPa


>= 34000psi

AA




Tensile Strength, Yield 

>= 165MPa


>= 24000psi

AA; 0.2% Offset




Elongation at Break 
>= 3.50 %
>= 3.50 %
AA; in 2 in. (50 mm) or 4D




Modulus of Elasticity 

72.4GPa


10500ksi

In Tension; elastic modulus in compression is typically about 2% higher for aluminum alloys.




Poissons Ratio 
0.330
0.330





Machinability 
50 %
50 %
0-100 Scale (100=best)




Shear Modulus 

27.2GPa


3950ksi






Shear Strength 

143MPa


20700psi

Calculated






Electrical Properties
Metric
English
Comments





Electrical Resistivity 		


0.00000440ohm-cm



0.00000440ohm-cm








Thermal Properties
Metric
English
Comments





Heat of Fusion 		


389J/g



167BTU/lb







CTE, linear  


21.4µm/m-°C
@Temperature 20.0 - 100 °C


11.9µin/in-°F
@Temperature 68.0 - 212 °F








23.2µm/m-°C
@Temperature 20.0 - 300 °C


12.9µin/in-°F
@Temperature 68.0 - 572 °F






Specific Heat Capacity 

0.963J/g-°C


0.230BTU/lb-°F






Thermal Conductivity 

151W/m-K


1050BTU-in/hr-ft²-°F






Melting Point 

557- 613°C


1030- 1140°F






Solidus 

557°C


1030°F






Liquidus 

613°C


1140°F








Processing Properties
Metric
English
Comments





Melt Temperature 		


677- 816°C



1250- 1500°F






Solution Temperature 

535- 540.6°C


995- 1005°F

hold at temperature for 12 hr; cool in water at 150 to 212°F




Aging Temperature 

152- 157°C


305- 315°F

hold at temperature 2 - 5 hrs; start with solution heat-treated material




Casting Temperature 

677- 788°C


1250- 1450°F








Component Elements Properties
Metric
English
Comments





Aluminum, Al 		

91.1 - 93.3 %		

91.1 - 93.3 %		

As remainder		




Copper, Cu 
<= 0.20 %
<= 0.20 %





Iron, Fe 
<= 0.20 %
<= 0.20 %





Magnesium, Mg 
0.25 - 0.45 %
0.25 - 0.45 %





Manganese, Mn 
<= 0.10 %
<= 0.10 %





Other, each 
<= 0.050 %
<= 0.050 %





Other, total 
<= 0.15 %
<= 0.15 %





Silicon, Si 
6.50 - 7.50 %
6.50 - 7.50 %





Titanium, Ti 
<= 0.20 %
<= 0.20 %





Zinc, Zn 
<= 0.10 %
<= 0.10 %









 A356 - T6