C28500 Muntz Metal vs. C71000 Copper-nickel

Both C28500 Muntz Metal and C71000 copper-nickel are copper alloys. They have 59% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C28500 Muntz Metal and the bottom bar is C71000 copper-nickel.

UNS C28500 Muntz Metal UNS C71000 Copper-Nickel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		100
Elastic (Young's, Tensile) Modulus, GPa		130

Poisson's Ratio		0.3
Poisson's Ratio		0.33

Rockwell B Hardness		150
Rockwell B Hardness		59 to 85

Shear Modulus, GPa		40
Shear Modulus, GPa		49

Tensile Strength: Ultimate (UTS), MPa		520
Tensile Strength: Ultimate (UTS), MPa		320 to 560

Thermal Properties

Latent Heat of Fusion, J/g		170
Latent Heat of Fusion, J/g		230

Maximum Temperature: Mechanical, °C		110
Maximum Temperature: Mechanical, °C		240

Melting Completion (Liquidus), °C		900
Melting Completion (Liquidus), °C		1200

Melting Onset (Solidus), °C		890
Melting Onset (Solidus), °C		1150

Specific Heat Capacity, J/kg-K		390
Specific Heat Capacity, J/kg-K		400

Thermal Conductivity, W/m-K		100
Thermal Conductivity, W/m-K		43

Thermal Expansion, µm/m-K		21
Thermal Expansion, µm/m-K		15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		29
Electrical Conductivity: Equal Volume, % IACS		6.5

Electrical Conductivity: Equal Weight (Specific), % IACS		33
Electrical Conductivity: Equal Weight (Specific), % IACS		6.6

Otherwise Unclassified Properties

Base Metal Price, % relative		22
Base Metal Price, % relative		37

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

Embodied Carbon, kg CO₂/kg material		2.7
Embodied Carbon, kg CO₂/kg material		4.3

Embodied Energy, MJ/kg		46
Embodied Energy, MJ/kg		63

Embodied Water, L/kg		320
Embodied Water, L/kg		290

Common Calculations

Stiffness to Weight: Axial, points		7.3
Stiffness to Weight: Axial, points		8.2

Stiffness to Weight: Bending, points		20
Stiffness to Weight: Bending, points		19

Strength to Weight: Axial, points		18
Strength to Weight: Axial, points		10 to 18

Strength to Weight: Bending, points		18
Strength to Weight: Bending, points		12 to 17

Thermal Diffusivity, mm²/s		33
Thermal Diffusivity, mm²/s		12

Thermal Shock Resistance, points		17
Thermal Shock Resistance, points		12 to 20

Alloy Composition

Copper (Cu), %		57 to 59
Copper (Cu), %		73.5 to 80.5

Iron (Fe), %		0 to 0.35
Iron (Fe), %		0.5 to 1.0

Lead (Pb), %		0 to 0.25
Lead (Pb), %		0 to 0.050

Manganese (Mn), %		0
Manganese (Mn), %		0 to 1.0

Nickel (Ni), %		0
Nickel (Ni), %		19 to 23

Zinc (Zn), %		39.5 to 43
Zinc (Zn), %		0 to 1.0

Residuals, %		0
Residuals, %		0 to 0.5