C24000 Brass vs. C17300 Copper

Both C24000 brass and C17300 copper are copper alloys. They have 80% of their average alloy composition in common. There are 23 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 C24000 brass and the bottom bar is C17300 copper.

UNS C24000 (CW503L) Low 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		310 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		1000
Melting Completion (Liquidus), °C		980

Melting Onset (Solidus), °C		970
Melting Onset (Solidus), °C		870

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

Thermal Conductivity, W/m-K		140
Thermal Conductivity, W/m-K		110

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		32
Electrical Conductivity: Equal Volume, % IACS		22

Electrical Conductivity: Equal Weight (Specific), % IACS		34
Electrical Conductivity: Equal Weight (Specific), % IACS		23

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

Strength to Weight: Bending, points		12 to 20
Strength to Weight: Bending, points		16 to 31

Thermal Diffusivity, mm²/s		43
Thermal Diffusivity, mm²/s		32

Thermal Shock Resistance, points		10 to 22
Thermal Shock Resistance, points		17 to 48

Alloy Composition

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

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

Copper (Cu), %		78.5 to 81.5
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), %		18.2 to 21.5
Zinc (Zn), %		0

Residuals, %		0
Residuals, %		0 to 0.5