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ASTM B685 Alloy vs. EN AC-42200 Aluminum

ASTM B685 alloy belongs to the otherwise unclassified metals classification, while EN AC-42200 aluminum belongs to the aluminum alloys. There are 17 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is ASTM B685 alloy and the bottom bar is EN AC-42200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
70
Poisson's Ratio 0.37
0.33
Shear Modulus, GPa 43
26
Tensile Strength: Ultimate (UTS), MPa 660 to 1060
320

Thermal Properties

Latent Heat of Fusion, J/g 180
500
Melting Completion (Liquidus), °C 1230
610
Melting Onset (Solidus), °C 1200
600
Specific Heat Capacity, J/kg-K 300
910
Thermal Expansion, µm/m-K 14
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 5.0
40
Electrical Conductivity: Equal Weight (Specific), % IACS 4.1
140

Otherwise Unclassified Properties

Density, g/cm3 11
2.6

Common Calculations

Stiffness to Weight: Axial, points 6.1
15
Stiffness to Weight: Bending, points 15
53
Strength to Weight: Axial, points 17 to 27
34 to 35
Strength to Weight: Bending, points 16 to 21
40 to 41
Thermal Shock Resistance, points 28 to 46
15

Alloy Composition

Aluminum (Al), % 0 to 0.0050
91 to 93.1
Cadmium (Cd), % 0 to 0.050
0
Copper (Cu), % 39.5 to 40.5
0 to 0.050
Iron (Fe), % 0 to 0.050
0 to 0.19
Lead (Pb), % 0 to 0.030
0
Magnesium (Mg), % 0
0.45 to 0.7
Manganese (Mn), % 0
0 to 0.1
Palladium (Pd), % 59 to 60.5
0
Silicon (Si), % 0
6.5 to 7.5
Silver (Ag), % 0 to 0.1
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0 to 0.060
0 to 0.070
Residuals, % 0
0 to 0.1