C23400 Brass vs. C63000 Bronze

Both C23400 brass and C63000 bronze are copper alloys. They have 81% 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 C23400 brass and the bottom bar is C63000 bronze.

UNS C23400 Red Brass UNS C63000 (CW307G) Aluminum-Nickel Bronze

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		120

Poisson's Ratio		0.32
Poisson's Ratio		0.34

Shear Modulus, GPa		42
Shear Modulus, GPa		44

Tensile Strength: Ultimate (UTS), MPa		370 to 640
Tensile Strength: Ultimate (UTS), MPa		660 to 790

Thermal Properties

Latent Heat of Fusion, J/g		190
Latent Heat of Fusion, J/g		230

Maximum Temperature: Mechanical, °C		160
Maximum Temperature: Mechanical, °C		230

Melting Completion (Liquidus), °C		970
Melting Completion (Liquidus), °C		1050

Melting Onset (Solidus), °C		930
Melting Onset (Solidus), °C		1040

Specific Heat Capacity, J/kg-K		390
Specific Heat Capacity, J/kg-K		440

Thermal Conductivity, W/m-K		120
Thermal Conductivity, W/m-K		39

Thermal Expansion, µm/m-K		19
Thermal Expansion, µm/m-K		18

Otherwise Unclassified Properties

Base Metal Price, % relative		27
Base Metal Price, % relative		29

Density, g/cm³		8.5
Density, g/cm³		8.2

Embodied Carbon, kg CO₂/kg material		2.6
Embodied Carbon, kg CO₂/kg material		3.5

Embodied Energy, MJ/kg		43
Embodied Energy, MJ/kg		57

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

Common Calculations

Stiffness to Weight: Axial, points		7.2
Stiffness to Weight: Axial, points		7.9

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

Strength to Weight: Axial, points		12 to 21
Strength to Weight: Axial, points		22 to 26

Strength to Weight: Bending, points		13 to 19
Strength to Weight: Bending, points		20 to 23

Thermal Diffusivity, mm²/s		36
Thermal Diffusivity, mm²/s		11

Thermal Shock Resistance, points		12 to 22
Thermal Shock Resistance, points		23 to 27

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		9.0 to 11

Copper (Cu), %		81 to 84
Copper (Cu), %		76.8 to 85

Iron (Fe), %		0 to 0.050
Iron (Fe), %		2.0 to 4.0

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

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

Nickel (Ni), %		0
Nickel (Ni), %		4.0 to 5.5

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

Tin (Sn), %		0
Tin (Sn), %		0 to 0.2

Zinc (Zn), %		15.7 to 19
Zinc (Zn), %		0 to 0.3

Residuals, %		0
Residuals, %		0 to 0.5