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WE43B Magnesium vs. ASTM B628 Ag-Cu

WE43B magnesium belongs to the magnesium alloys classification, while ASTM B628 Ag-Cu belongs to the otherwise unclassified metals. There are 19 material properties with values for both materials. Properties with values for just one material (12, 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 WE43B magnesium and the bottom bar is ASTM B628 Ag-Cu.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
83
Elongation at Break, % 2.2
1.1 to 17
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 17
31
Shear Strength, MPa 140
210 to 430
Tensile Strength: Ultimate (UTS), MPa 250
350 to 760

Thermal Properties

Latent Heat of Fusion, J/g 330
140
Melting Completion (Liquidus), °C 640
780
Melting Onset (Solidus), °C 550
780
Specific Heat Capacity, J/kg-K 960
280
Thermal Expansion, µm/m-K 27
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
84
Electrical Conductivity: Equal Weight (Specific), % IACS 53
75

Otherwise Unclassified Properties

Density, g/cm3 1.9
10

Common Calculations

Stiffness to Weight: Axial, points 13
4.6
Stiffness to Weight: Bending, points 61
14
Strength to Weight: Axial, points 36
9.5 to 21
Strength to Weight: Bending, points 46
11 to 18
Thermal Shock Resistance, points 15
16 to 34

Alloy Composition


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Aluminum (Al), % 0
0 to 0.0050
Cadmium (Cd), % 0
0 to 0.050
Copper (Cu), % 0 to 0.020
26.6 to 29
Iron (Fe), % 0 to 0.010
0 to 0.050
Lead (Pb), % 0
0 to 0.030
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.8 to 93.5
0
Manganese (Mn), % 0 to 0.030
0
Nickel (Ni), % 0 to 0.0050
0 to 0.010
Phosphorus (P), % 0
0 to 0.030
Silver (Ag), % 0
71 to 73
Unspecified Rare Earths, % 2.4 to 4.4
0
Yttrium (Y), % 3.7 to 4.3
0
Zinc (Zn), % 0 to 0.2
0 to 0.060
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0
0 to 0.21