C47000 Brass vs. C72200 Copper-nickel

Both C47000 brass and C72200 copper-nickel are copper alloys. They have 60% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C47000 brass and the bottom bar is C72200 copper-nickel.

UNS C47000 (RBCuZn-A) Filler Metal UNS C72200 Chromium-Bearing 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

Shear Modulus, GPa		40
Shear Modulus, GPa		48

Tensile Strength: Ultimate (UTS), MPa		380
Tensile Strength: Ultimate (UTS), MPa		350 to 580

Thermal Properties

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

Maximum Temperature: Mechanical, °C		120
Maximum Temperature: Mechanical, °C		230

Melting Completion (Liquidus), °C		900
Melting Completion (Liquidus), °C		1180

Melting Onset (Solidus), °C		890
Melting Onset (Solidus), °C		1120

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

Thermal Conductivity, W/m-K		120
Thermal Conductivity, W/m-K		34

Thermal Expansion, µm/m-K		21
Thermal Expansion, µm/m-K		16

Otherwise Unclassified Properties

Base Metal Price, % relative		23
Base Metal Price, % relative		36

Density, g/cm³		8.0
Density, g/cm³		8.9

Embodied Carbon, kg CO₂/kg material		2.7
Embodied Carbon, kg CO₂/kg material		3.9

Embodied Energy, MJ/kg		47
Embodied Energy, MJ/kg		59

Embodied Water, L/kg		330
Embodied Water, L/kg		300

Common Calculations

Stiffness to Weight: Axial, points		7.2
Stiffness to Weight: Axial, points		8.0

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

Strength to Weight: Axial, points		13
Strength to Weight: Axial, points		11 to 18

Strength to Weight: Bending, points		15
Strength to Weight: Bending, points		12 to 17

Thermal Diffusivity, mm²/s		38
Thermal Diffusivity, mm²/s		9.6

Thermal Shock Resistance, points		13
Thermal Shock Resistance, points		12 to 20

Alloy Composition

Aluminum (Al), %		0 to 0.010
Aluminum (Al), %		0

Chromium (Cr), %		0
Chromium (Cr), %		0.3 to 0.7

Copper (Cu), %		57 to 61
Copper (Cu), %		78.1 to 84.2

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

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

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

Nickel (Ni), %		0
Nickel (Ni), %		15 to 18

Tin (Sn), %		0.25 to 1.0
Tin (Sn), %		0

Zinc (Zn), %		37.5 to 42.8
Zinc (Zn), %		0 to 1.0

Residuals, %		0
Residuals, %		0 to 0.2