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ASTM B617 Coin Silver vs. ISO-WD21150 Magnesium

ASTM B617 coin silver belongs to the otherwise unclassified metals classification, while ISO-WD21150 magnesium belongs to the magnesium alloys. There are 19 material properties with values for both materials. Properties with values for just one material (10, 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 B617 coin silver and the bottom bar is ISO-WD21150 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
45
Elongation at Break, % 1.1 to 22
5.7 to 11
Poisson's Ratio 0.37
0.29
Shear Modulus, GPa 28
17
Shear Strength, MPa 180 to 290
150 to 170
Tensile Strength: Ultimate (UTS), MPa 290 to 520
240 to 290

Thermal Properties

Latent Heat of Fusion, J/g 120
350
Melting Completion (Liquidus), °C 870
600
Melting Onset (Solidus), °C 780
550
Specific Heat Capacity, J/kg-K 250
990
Thermal Expansion, µm/m-K 19
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 83
19
Electrical Conductivity: Equal Weight (Specific), % IACS 72
100

Otherwise Unclassified Properties

Density, g/cm3 10
1.7

Common Calculations

Stiffness to Weight: Axial, points 4.1
15
Stiffness to Weight: Bending, points 14
70
Strength to Weight: Axial, points 7.7 to 14
40 to 48
Strength to Weight: Bending, points 9.3 to 14
52 to 58
Thermal Shock Resistance, points 14 to 25
15 to 17

Alloy Composition

Aluminum (Al), % 0 to 0.0050
2.4 to 3.6
Cadmium (Cd), % 0 to 0.050
0
Copper (Cu), % 9.0 to 10.4
0 to 0.050
Iron (Fe), % 0 to 0.050
0 to 0.0050
Lead (Pb), % 0 to 0.030
0
Magnesium (Mg), % 0
94 to 97
Manganese (Mn), % 0
0.15 to 0.4
Nickel (Ni), % 0 to 0.010
0 to 0.0050
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0
0 to 0.1
Silver (Ag), % 89.6 to 91
0
Zinc (Zn), % 0 to 0.060
0.5 to 1.5
Residuals, % 0
0 to 0.3

Comparable Variants