C37000 Muntz Metal vs. C74000 Nickel Silver

Both C37000 Muntz Metal and C74000 nickel silver are copper alloys. They have 79% of their average alloy composition in common. There are 23 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 C37000 Muntz Metal and the bottom bar is C74000 nickel silver.

UNS C37000 (CW607N) Free-Cutting Muntz Metal UNS C74000 Nickel Silver

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		100
Elastic (Young's, Tensile) Modulus, GPa		120

Poisson's Ratio		0.31
Poisson's Ratio		0.32

Rockwell B Hardness		45
Rockwell B Hardness		70 to 88

Shear Modulus, GPa		39
Shear Modulus, GPa		44

Tensile Strength: Ultimate (UTS), MPa		400
Tensile Strength: Ultimate (UTS), MPa		380 to 590

Thermal Properties

Latent Heat of Fusion, J/g		170
Latent Heat of Fusion, J/g		200

Maximum Temperature: Mechanical, °C		120
Maximum Temperature: Mechanical, °C		180

Melting Completion (Liquidus), °C		900
Melting Completion (Liquidus), °C		990

Melting Onset (Solidus), °C		890
Melting Onset (Solidus), °C		950

Specific Heat Capacity, J/kg-K		380
Specific Heat Capacity, J/kg-K		390

Thermal Expansion, µm/m-K		21
Thermal Expansion, µm/m-K		18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		27
Electrical Conductivity: Equal Volume, % IACS		40

Electrical Conductivity: Equal Weight (Specific), % IACS		30
Electrical Conductivity: Equal Weight (Specific), % IACS		42

Otherwise Unclassified Properties

Base Metal Price, % relative		23
Base Metal Price, % relative		30

Density, g/cm³		8.1
Density, g/cm³		8.5

Embodied Carbon, kg CO₂/kg material		2.7
Embodied Carbon, kg CO₂/kg material		3.4

Embodied Energy, MJ/kg		45
Embodied Energy, MJ/kg		54

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

Common Calculations

Stiffness to Weight: Axial, points		7.2
Stiffness to Weight: Axial, points		7.7

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

Strength to Weight: Axial, points		14
Strength to Weight: Axial, points		13 to 19

Strength to Weight: Bending, points		15
Strength to Weight: Bending, points		14 to 18

Thermal Shock Resistance, points		13
Thermal Shock Resistance, points		13 to 19

Alloy Composition

Copper (Cu), %		59 to 62
Copper (Cu), %		69 to 73.5

Iron (Fe), %		0 to 0.15
Iron (Fe), %		0 to 0.25

Lead (Pb), %		0.8 to 1.5
Lead (Pb), %		0 to 0.1

Manganese (Mn), %		0
Manganese (Mn), %		0 to 0.5

Nickel (Ni), %		0
Nickel (Ni), %		9.0 to 11

Zinc (Zn), %		36 to 40.2
Zinc (Zn), %		14.2 to 22

Residuals, %		0
Residuals, %		0 to 0.5