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ASTM B617 Coin Silver vs. AWS BNi-3

ASTM B617 coin silver belongs to the otherwise unclassified metals classification, while AWS BNi-3 belongs to the nickel alloys. There are 15 material properties with values for both materials. Properties with values for just one material (9, 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 BNi-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
170
Poisson's Ratio 0.37
0.31
Shear Modulus, GPa 28
66
Tensile Strength: Ultimate (UTS), MPa 290 to 520
430

Thermal Properties

Latent Heat of Fusion, J/g 120
350
Melting Completion (Liquidus), °C 870
1040
Melting Onset (Solidus), °C 780
980
Specific Heat Capacity, J/kg-K 250
480
Thermal Expansion, µm/m-K 19
10

Otherwise Unclassified Properties

Density, g/cm3 10
8.3

Common Calculations

Stiffness to Weight: Axial, points 4.1
12
Stiffness to Weight: Bending, points 14
22
Strength to Weight: Axial, points 7.7 to 14
14
Strength to Weight: Bending, points 9.3 to 14
15
Thermal Shock Resistance, points 14 to 25
17

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.050
Boron (B), % 0
2.8 to 3.5
Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0 to 0.060
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 9.0 to 10.4
0
Iron (Fe), % 0 to 0.050
0 to 0.5
Lead (Pb), % 0 to 0.030
0
Nickel (Ni), % 0 to 0.010
90.1 to 93.3
Phosphorus (P), % 0 to 0.020
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0
4.0 to 5.0
Silver (Ag), % 89.6 to 91
0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.060
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5