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ASTM B617 Coin Silver vs. AWS BAg-27

Both ASTM B617 coin silver and AWS BAg-27 are otherwise unclassified metals. They have a modest 35% of their average alloy composition in common, which, by itself, doesn't mean much. There are 15 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ASTM B617 coin silver and the bottom bar is AWS BAg-27.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
88
Poisson's Ratio 0.37
0.32
Shear Modulus, GPa 28
33
Tensile Strength: Ultimate (UTS), MPa 290 to 520
160

Thermal Properties

Latent Heat of Fusion, J/g 120
140
Melting Completion (Liquidus), °C 870
750
Melting Onset (Solidus), °C 780
610
Specific Heat Capacity, J/kg-K 250
330
Thermal Expansion, µm/m-K 19
22

Otherwise Unclassified Properties

Density, g/cm3 10
8.7

Common Calculations

Stiffness to Weight: Axial, points 4.1
5.7
Stiffness to Weight: Bending, points 14
17
Strength to Weight: Axial, points 7.7 to 14
5.1
Strength to Weight: Bending, points 9.3 to 14
7.6
Thermal Shock Resistance, points 14 to 25
5.9

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
0
Cadmium (Cd), % 0 to 0.050
12.5 to 14.5
Copper (Cu), % 9.0 to 10.4
34 to 36
Iron (Fe), % 0 to 0.050
0
Lead (Pb), % 0 to 0.030
0
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.020
0
Silver (Ag), % 89.6 to 91
24 to 26
Zinc (Zn), % 0 to 0.060
24.5 to 28.5
Residuals, % 0 to 0.060
0 to 0.15