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ASTM B617 Coin Silver vs. Nickel 685

ASTM B617 coin silver belongs to the otherwise unclassified metals classification, while nickel 685 belongs to the nickel alloys. There are 17 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is ASTM B617 coin silver and the bottom bar is nickel 685.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
200
Elongation at Break, % 1.1 to 22
17
Poisson's Ratio 0.37
0.29
Shear Modulus, GPa 28
77
Shear Strength, MPa 180 to 290
770
Tensile Strength: Ultimate (UTS), MPa 290 to 520
1250

Thermal Properties

Latent Heat of Fusion, J/g 120
320
Melting Completion (Liquidus), °C 870
1380
Melting Onset (Solidus), °C 780
1330
Specific Heat Capacity, J/kg-K 250
460
Thermal Expansion, µm/m-K 19
12

Otherwise Unclassified Properties

Density, g/cm3 10
8.4

Common Calculations

Stiffness to Weight: Axial, points 4.1
13
Stiffness to Weight: Bending, points 14
23
Strength to Weight: Axial, points 7.7 to 14
42
Strength to Weight: Bending, points 9.3 to 14
31
Thermal Shock Resistance, points 14 to 25
37

Alloy Composition

Aluminum (Al), % 0 to 0.0050
1.2 to 1.6
Boron (B), % 0
0.0030 to 0.010
Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0.030 to 0.1
Chromium (Cr), % 0
18 to 21
Cobalt (Co), % 0
12 to 15
Copper (Cu), % 9.0 to 10.4
0 to 0.5
Iron (Fe), % 0 to 0.050
0 to 2.0
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
3.5 to 5.0
Nickel (Ni), % 0 to 0.010
49.6 to 62.5
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0
0 to 0.75
Silver (Ag), % 89.6 to 91
0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0
2.8 to 3.3
Zinc (Zn), % 0 to 0.060
0.020 to 0.12
Residuals, % 0 to 0.060
0