C23400 Brass vs. C17300 Copper

Both C23400 brass and C17300 copper are copper alloys. They have 83% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is C23400 brass and the bottom bar is C17300 copper.

UNS C23400 Red Brass UNS C17300 (CW102C) Beryllium Copper

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		0.33

Shear Modulus, GPa		42
Shear Modulus, GPa		45

Tensile Strength: Ultimate (UTS), MPa		370 to 640
Tensile Strength: Ultimate (UTS), MPa		500 to 1380

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		270

Melting Completion (Liquidus), °C		970
Melting Completion (Liquidus), °C		980

Melting Onset (Solidus), °C		930
Melting Onset (Solidus), °C		870

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

Thermal Conductivity, W/m-K		120
Thermal Conductivity, W/m-K		110

Thermal Expansion, µm/m-K		19
Thermal Expansion, µm/m-K		17

Otherwise Unclassified Properties

Density, g/cm³		8.5
Density, g/cm³		8.8

Embodied Carbon, kg CO₂/kg material		2.6
Embodied Carbon, kg CO₂/kg material		9.4

Embodied Energy, MJ/kg		43
Embodied Energy, MJ/kg		150

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

Common Calculations

Stiffness to Weight: Axial, points		7.2
Stiffness to Weight: Axial, points		7.6

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

Strength to Weight: Axial, points		12 to 21
Strength to Weight: Axial, points		16 to 44

Strength to Weight: Bending, points		13 to 19
Strength to Weight: Bending, points		16 to 31

Thermal Diffusivity, mm²/s		36
Thermal Diffusivity, mm²/s		32

Thermal Shock Resistance, points		12 to 22
Thermal Shock Resistance, points		17 to 48

Alloy Composition

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Aluminum (Al), %		0
Aluminum (Al), %		0 to 0.2

Beryllium (Be), %		0
Beryllium (Be), %		1.8 to 2.0

Copper (Cu), %		81 to 84
Copper (Cu), %		95.5 to 97.8

Iron (Fe), %		0 to 0.050
Iron (Fe), %		0 to 0.4

Lead (Pb), %		0 to 0.050
Lead (Pb), %		0.2 to 0.6

Nickel (Ni), %		0
Nickel (Ni), %		0.2 to 0.6

Silicon (Si), %		0
Silicon (Si), %		0 to 0.2

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

Residuals, %		0 to 0.2
Residuals, %		0 to 0.5