Annealed ASTM B617 vs. Annealed ASTM B628

Both annealed ASTM B617 and annealed ASTM B628 are otherwise unclassified metals. Both are furnished in the annealed condition. They have 82% of their average alloy composition in common.

For each property being compared, the top bar is annealed ASTM B617 and the bottom bar is annealed ASTM B628.

Annealed ASTM B617 Coin Silver Alloy Annealed ASTM B628 Silver-Copper Eutectic Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		75
Elastic (Young's, Tensile) Modulus, GPa		83

Elongation at Break, %		22
Elongation at Break, %		17

Poisson's Ratio		0.37
Poisson's Ratio		0.36

Shear Modulus, GPa		28
Shear Modulus, GPa		31

Shear Strength, MPa		180
Shear Strength, MPa		210

Tensile Strength: Ultimate (UTS), MPa		290
Tensile Strength: Ultimate (UTS), MPa		350

Thermal Properties

Latent Heat of Fusion, J/g		120
Latent Heat of Fusion, J/g		140

Melting Completion (Liquidus), °C		870
Melting Completion (Liquidus), °C		780

Melting Onset (Solidus), °C		780
Melting Onset (Solidus), °C		780

Specific Heat Capacity, J/kg-K		250
Specific Heat Capacity, J/kg-K		280

Thermal Expansion, µm/m-K		19
Thermal Expansion, µm/m-K		19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		83
Electrical Conductivity: Equal Volume, % IACS		84

Electrical Conductivity: Equal Weight (Specific), % IACS		72
Electrical Conductivity: Equal Weight (Specific), % IACS		75

Otherwise Unclassified Properties

Density, g/cm³		10
Density, g/cm³		10

Common Calculations

Stiffness to Weight: Axial, points		4.1
Stiffness to Weight: Axial, points		4.6

Stiffness to Weight: Bending, points		14
Stiffness to Weight: Bending, points		14

Strength to Weight: Axial, points		7.7
Strength to Weight: Axial, points		9.5

Strength to Weight: Bending, points		9.3
Strength to Weight: Bending, points		11

Thermal Shock Resistance, points		14
Thermal Shock Resistance, points		16

Alloy Composition

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Aluminum (Al), %		0 to 0.0050
Aluminum (Al), %		0 to 0.0050

Cadmium (Cd), %		0 to 0.050
Cadmium (Cd), %		0 to 0.050

Copper (Cu), %		9.0 to 10.4
Copper (Cu), %		26.6 to 29

Iron (Fe), %		0 to 0.050
Iron (Fe), %		0 to 0.050

Lead (Pb), %		0 to 0.030
Lead (Pb), %		0 to 0.030

Nickel (Ni), %		0 to 0.010
Nickel (Ni), %		0 to 0.010

Phosphorus (P), %		0 to 0.020
Phosphorus (P), %		0 to 0.030

Silver (Ag), %		89.6 to 91
Silver (Ag), %		71 to 73

Zinc (Zn), %		0 to 0.060
Zinc (Zn), %		0 to 0.060

Residuals, %		0 to 0.060
Residuals, %		0 to 0.21