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AWS BVAg-18 vs. ASTM B617 Coin Silver

Both AWS BVAg-18 and ASTM B617 coin silver are otherwise unclassified metals. They have 70% of their average alloy composition in common. 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 AWS BVAg-18 and the bottom bar is ASTM B617 coin silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 82
75
Poisson's Ratio 0.36
0.37
Shear Modulus, GPa 30
28
Tensile Strength: Ultimate (UTS), MPa 180
290 to 520

Thermal Properties

Latent Heat of Fusion, J/g 140
120
Melting Completion (Liquidus), °C 720
870
Melting Onset (Solidus), °C 600
780
Specific Heat Capacity, J/kg-K 280
250
Thermal Expansion, µm/m-K 19
19

Otherwise Unclassified Properties

Density, g/cm3 9.7
10

Common Calculations

Stiffness to Weight: Axial, points 4.7
4.1
Stiffness to Weight: Bending, points 15
14
Strength to Weight: Axial, points 5.1
7.7 to 14
Strength to Weight: Bending, points 7.3
9.3 to 14
Thermal Shock Resistance, points 8.1
14 to 25

Alloy Composition


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Aluminum (Al), % 0
0 to 0.0050
Cadmium (Cd), % 0 to 0.0010
0 to 0.050
Carbon (C), % 0 to 0.0050
0
Copper (Cu), % 28.5 to 31.5
9.0 to 10.4
Iron (Fe), % 0
0 to 0.050
Lead (Pb), % 0 to 0.0020
0 to 0.030
Nickel (Ni), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.0020
0 to 0.020
Silver (Ag), % 59 to 61
89.6 to 91
Tin (Sn), % 9.5 to 10.5
0
Zinc (Zn), % 0 to 0.0010
0 to 0.060
Residuals, % 0
0 to 0.060