Commercially Pure Silver vs. AWS ENiCu-7

Commercially pure silver belongs to the otherwise unclassified metals classification, while AWS ENiCu-7 belongs to the nickel alloys. There are 20 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is commercially pure silver and the bottom bar is AWS ENiCu-7.

Commercially Pure Silver AWS ENiCu-7 (W84190) Weld Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		71
Elastic (Young's, Tensile) Modulus, GPa		160

Elongation at Break, %		1.1 to 29
Elongation at Break, %		34

Poisson's Ratio		0.37
Poisson's Ratio		0.32

Shear Modulus, GPa		26
Shear Modulus, GPa		62

Tensile Strength: Ultimate (UTS), MPa		190 to 340
Tensile Strength: Ultimate (UTS), MPa		550

Thermal Properties

Latent Heat of Fusion, J/g		110
Latent Heat of Fusion, J/g		280

Melting Completion (Liquidus), °C		960
Melting Completion (Liquidus), °C		1270

Melting Onset (Solidus), °C		960
Melting Onset (Solidus), °C		1230

Specific Heat Capacity, J/kg-K		240
Specific Heat Capacity, J/kg-K		430

Thermal Conductivity, W/m-K		420
Thermal Conductivity, W/m-K		21

Thermal Expansion, µm/m-K		20
Thermal Expansion, µm/m-K		13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		100
Electrical Conductivity: Equal Volume, % IACS		3.3

Electrical Conductivity: Equal Weight (Specific), % IACS		87
Electrical Conductivity: Equal Weight (Specific), % IACS		3.3

Otherwise Unclassified Properties

Density, g/cm³		10
Density, g/cm³		8.7

Common Calculations

Stiffness to Weight: Axial, points		3.8
Stiffness to Weight: Axial, points		10

Stiffness to Weight: Bending, points		13
Stiffness to Weight: Bending, points		21

Strength to Weight: Axial, points		4.9 to 8.9
Strength to Weight: Axial, points		17

Strength to Weight: Bending, points		6.9 to 10
Strength to Weight: Bending, points		17

Thermal Diffusivity, mm²/s		170
Thermal Diffusivity, mm²/s		5.5

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

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		0 to 0.75

Carbon (C), %		0
Carbon (C), %		0 to 0.1

Copper (Cu), %		0
Copper (Cu), %		20.6 to 38

Iron (Fe), %		0
Iron (Fe), %		0 to 2.5

Manganese (Mn), %		0
Manganese (Mn), %		0 to 4.0

Nickel (Ni), %		0
Nickel (Ni), %		62 to 69

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

Silicon (Si), %		0
Silicon (Si), %		0 to 1.5

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

Sulfur (S), %		0
Sulfur (S), %		0 to 0.015

Titanium (Ti), %		0
Titanium (Ti), %		0 to 1.0

Residuals, %		0
Residuals, %		0 to 0.5