C70250 Copper vs. C46200 Brass

Both C70250 copper and C46200 brass are copper alloys. They have 64% of their average alloy composition in common. There are 22 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 C70250 copper and the bottom bar is C46200 brass.

UNS C70250 (CW112C) Nickel-Silicon Copper UNS C46200 Naval Brass

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.34
Poisson's Ratio		0.31

Shear Modulus, GPa		44
Shear Modulus, GPa		40

Tensile Strength: Ultimate (UTS), MPa		520 to 740
Tensile Strength: Ultimate (UTS), MPa		370 to 480

Thermal Properties

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

Maximum Temperature: Mechanical, °C		210
Maximum Temperature: Mechanical, °C		120

Melting Completion (Liquidus), °C		1100
Melting Completion (Liquidus), °C		840

Melting Onset (Solidus), °C		1080
Melting Onset (Solidus), °C		800

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

Thermal Conductivity, W/m-K		170
Thermal Conductivity, W/m-K		110

Thermal Expansion, µm/m-K		17
Thermal Expansion, µm/m-K		20

Otherwise Unclassified Properties

Base Metal Price, % relative		31
Base Metal Price, % relative		24

Density, g/cm³		8.9
Density, g/cm³		8.1

Embodied Carbon, kg CO₂/kg material		2.9
Embodied Carbon, kg CO₂/kg material		2.7

Embodied Energy, MJ/kg		45
Embodied Energy, MJ/kg		46

Embodied Water, L/kg		310
Embodied Water, L/kg		330

Common Calculations

Stiffness to Weight: Axial, points		7.4
Stiffness to Weight: Axial, points		7.2

Stiffness to Weight: Bending, points		18
Stiffness to Weight: Bending, points		19

Strength to Weight: Axial, points		16 to 23
Strength to Weight: Axial, points		13 to 16

Strength to Weight: Bending, points		16 to 21
Strength to Weight: Bending, points		14 to 17

Thermal Diffusivity, mm²/s		49
Thermal Diffusivity, mm²/s		35

Thermal Shock Resistance, points		18 to 26
Thermal Shock Resistance, points		12 to 16

Alloy Composition

Copper (Cu), %		92.7 to 97.5
Copper (Cu), %		62 to 65

Iron (Fe), %		0
Iron (Fe), %		0 to 0.1

Lead (Pb), %		0 to 0.050
Lead (Pb), %		0 to 0.2

Magnesium (Mg), %		0.050 to 0.3
Magnesium (Mg), %		0

Manganese (Mn), %		0 to 0.1
Manganese (Mn), %		0

Nickel (Ni), %		2.2 to 4.2
Nickel (Ni), %		0

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

Tin (Sn), %		0
Tin (Sn), %		0.5 to 1.0

Zinc (Zn), %		0 to 1.0
Zinc (Zn), %		33.3 to 37.5

Residuals, %		0
Residuals, %		0 to 0.4