C77400 Nickel Silver vs. C70250 Copper

Both C77400 nickel silver and C70250 copper are copper alloys. They have 49% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is C77400 nickel silver and the bottom bar is C70250 copper.

UNS C77400 Nickel Silver UNS C70250 (CW112C) Nickel-Silicon Copper

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		120

Poisson's Ratio		0.3
Poisson's Ratio		0.34

Shear Modulus, GPa		42
Shear Modulus, GPa		44

Tensile Strength: Ultimate (UTS), MPa		570
Tensile Strength: Ultimate (UTS), MPa		520 to 740

Thermal Properties

Latent Heat of Fusion, J/g		170
Latent Heat of Fusion, J/g		220

Maximum Temperature: Mechanical, °C		130
Maximum Temperature: Mechanical, °C		210

Melting Completion (Liquidus), °C		810
Melting Completion (Liquidus), °C		1100

Melting Onset (Solidus), °C		770
Melting Onset (Solidus), °C		1080

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

Thermal Expansion, µm/m-K		21
Thermal Expansion, µm/m-K		17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		27
Electrical Conductivity: Equal Volume, % IACS		36 to 50

Electrical Conductivity: Equal Weight (Specific), % IACS		31
Electrical Conductivity: Equal Weight (Specific), % IACS		37 to 51

Otherwise Unclassified Properties

Base Metal Price, % relative		25
Base Metal Price, % relative		31

Density, g/cm³		7.9
Density, g/cm³		8.9

Embodied Carbon, kg CO₂/kg material		3.5
Embodied Carbon, kg CO₂/kg material		2.9

Embodied Energy, MJ/kg		57
Embodied Energy, MJ/kg		45

Embodied Water, L/kg		320
Embodied Water, L/kg		310

Common Calculations

Stiffness to Weight: Axial, points		7.7
Stiffness to Weight: Axial, points		7.4

Stiffness to Weight: Bending, points		20
Stiffness to Weight: Bending, points		18

Strength to Weight: Axial, points		20
Strength to Weight: Axial, points		16 to 23

Strength to Weight: Bending, points		19
Strength to Weight: Bending, points		16 to 21

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

Alloy Composition

Copper (Cu), %		43 to 47
Copper (Cu), %		92.7 to 97.5

Lead (Pb), %		0 to 0.2
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), %		9.0 to 11
Nickel (Ni), %		2.2 to 4.2

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

Zinc (Zn), %		41.3 to 48
Zinc (Zn), %		0 to 1.0

Residuals, %		0
Residuals, %		0 to 0.5