C34000 Brass vs. C63020 Bronze

Both C34000 brass and C63020 bronze 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 (9, in this case) are not shown.

For each property being compared, the top bar is C34000 brass and the bottom bar is C63020 bronze.

UNS C34000 (CW600N) Leaded Brass UNS C63020 Aluminum-Nickel Bronze

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		0.33

Shear Modulus, GPa		40
Shear Modulus, GPa		44

Tensile Strength: Ultimate (UTS), MPa		340 to 650
Tensile Strength: Ultimate (UTS), MPa		1020

Thermal Properties

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

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

Melting Completion (Liquidus), °C		930
Melting Completion (Liquidus), °C		1070

Melting Onset (Solidus), °C		890
Melting Onset (Solidus), °C		1020

Specific Heat Capacity, J/kg-K		380
Specific Heat Capacity, J/kg-K		450

Thermal Conductivity, W/m-K		120
Thermal Conductivity, W/m-K		40

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

Otherwise Unclassified Properties

Base Metal Price, % relative		24
Base Metal Price, % relative		29

Density, g/cm³		8.1
Density, g/cm³		8.2

Embodied Carbon, kg CO₂/kg material		2.6
Embodied Carbon, kg CO₂/kg material		3.6

Embodied Energy, MJ/kg		45
Embodied Energy, MJ/kg		58

Embodied Water, L/kg		320
Embodied Water, L/kg		390

Common Calculations

Stiffness to Weight: Axial, points		7.1
Stiffness to Weight: Axial, points		8.0

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

Strength to Weight: Axial, points		11 to 22
Strength to Weight: Axial, points		34

Strength to Weight: Bending, points		13 to 21
Strength to Weight: Bending, points		27

Thermal Diffusivity, mm²/s		37
Thermal Diffusivity, mm²/s		11

Thermal Shock Resistance, points		11 to 22
Thermal Shock Resistance, points		35

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		10 to 11

Chromium (Cr), %		0
Chromium (Cr), %		0 to 0.050

Cobalt (Co), %		0
Cobalt (Co), %		0 to 0.2

Copper (Cu), %		62 to 65
Copper (Cu), %		74.7 to 81.8

Iron (Fe), %		0 to 0.1
Iron (Fe), %		4.0 to 5.5

Lead (Pb), %		0.8 to 1.5
Lead (Pb), %		0 to 0.030

Manganese (Mn), %		0
Manganese (Mn), %		0 to 1.5

Nickel (Ni), %		0
Nickel (Ni), %		4.2 to 6.0

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

Zinc (Zn), %		33 to 37.2
Zinc (Zn), %		0 to 0.3

Residuals, %		0
Residuals, %		0 to 0.5