Commercially Pure Silver vs. C70250 Copper

Commercially pure silver belongs to the otherwise unclassified metals classification, while C70250 copper belongs to the copper alloys. There are 19 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 commercially pure silver and the bottom bar is C70250 copper.

Commercially Pure Silver UNS C70250 (CW112C) Nickel-Silicon Copper

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		71
Elastic (Young's, Tensile) Modulus, GPa		120

Poisson's Ratio		0.37
Poisson's Ratio		0.34

Shear Modulus, GPa		26
Shear Modulus, GPa		44

Tensile Strength: Ultimate (UTS), MPa		190 to 340
Tensile Strength: Ultimate (UTS), MPa		520 to 740

Thermal Properties

Latent Heat of Fusion, J/g		110
Latent Heat of Fusion, J/g		220

Melting Completion (Liquidus), °C		960
Melting Completion (Liquidus), °C		1100

Melting Onset (Solidus), °C		960
Melting Onset (Solidus), °C		1080

Specific Heat Capacity, J/kg-K		240
Specific Heat Capacity, J/kg-K		390

Thermal Conductivity, W/m-K		420
Thermal Conductivity, W/m-K		170

Thermal Expansion, µm/m-K		20
Thermal Expansion, µm/m-K		17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		100
Electrical Conductivity: Equal Volume, % IACS		36 to 50

Electrical Conductivity: Equal Weight (Specific), % IACS		87
Electrical Conductivity: Equal Weight (Specific), % IACS		37 to 51

Otherwise Unclassified Properties

Density, g/cm³		10
Density, g/cm³		8.9

Common Calculations

Stiffness to Weight: Axial, points		3.8
Stiffness to Weight: Axial, points		7.4

Stiffness to Weight: Bending, points		13
Stiffness to Weight: Bending, points		18

Strength to Weight: Axial, points		4.9 to 8.9
Strength to Weight: Axial, points		16 to 23

Strength to Weight: Bending, points		6.9 to 10
Strength to Weight: Bending, points		16 to 21

Thermal Diffusivity, mm²/s		170
Thermal Diffusivity, mm²/s		49

Thermal Shock Resistance, points		9.5 to 17
Thermal Shock Resistance, points		18 to 26

Alloy Composition

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Copper (Cu), %		0
Copper (Cu), %		92.7 to 97.5

Lead (Pb), %		0
Lead (Pb), %		0 to 0.050

Magnesium (Mg), %		0
Magnesium (Mg), %		0.050 to 0.3

Manganese (Mn), %		0
Manganese (Mn), %		0 to 0.1

Nickel (Ni), %		0
Nickel (Ni), %		2.2 to 4.2

Silicon (Si), %		0
Silicon (Si), %		0.25 to 1.2

Silver (Ag), %		99.9 to 100
Silver (Ag), %		0

Zinc (Zn), %		0
Zinc (Zn), %		0 to 1.0

Residuals, %		0 to 0.1
Residuals, %		0 to 0.5