C24000 Brass vs. C69400 Brass

Both C24000 brass and C69400 brass are copper alloys. They have a moderately high 94% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is C24000 brass and the bottom bar is C69400 brass.

UNS C24000 (CW503L) Low Brass UNS C69400 Silicon Red Brass

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.32
Poisson's Ratio		0.33

Shear Modulus, GPa		42
Shear Modulus, GPa		42

Tensile Strength: Ultimate (UTS), MPa		310 to 640
Tensile Strength: Ultimate (UTS), MPa		570

Thermal Properties

Latent Heat of Fusion, J/g		190
Latent Heat of Fusion, J/g		260

Maximum Temperature: Mechanical, °C		160
Maximum Temperature: Mechanical, °C		170

Melting Completion (Liquidus), °C		1000
Melting Completion (Liquidus), °C		920

Melting Onset (Solidus), °C		970
Melting Onset (Solidus), °C		820

Specific Heat Capacity, J/kg-K		390
Specific Heat Capacity, J/kg-K		410

Thermal Conductivity, W/m-K		140
Thermal Conductivity, W/m-K		26

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		32
Electrical Conductivity: Equal Volume, % IACS		6.2

Electrical Conductivity: Equal Weight (Specific), % IACS		34
Electrical Conductivity: Equal Weight (Specific), % IACS		6.7

Otherwise Unclassified Properties

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

Density, g/cm³		8.5
Density, g/cm³		8.3

Embodied Carbon, kg CO₂/kg material		2.6
Embodied Carbon, kg CO₂/kg material		2.7

Embodied Energy, MJ/kg		43
Embodied Energy, MJ/kg		44

Embodied Water, L/kg		320
Embodied Water, L/kg		300

Common Calculations

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

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		19

Strength to Weight: Bending, points		12 to 20
Strength to Weight: Bending, points		18

Thermal Diffusivity, mm²/s		43
Thermal Diffusivity, mm²/s		7.7

Thermal Shock Resistance, points		10 to 22
Thermal Shock Resistance, points		20

Alloy Composition

Copper (Cu), %		78.5 to 81.5
Copper (Cu), %		80 to 83

Iron (Fe), %		0 to 0.050
Iron (Fe), %		0 to 0.2

Lead (Pb), %		0 to 0.050
Lead (Pb), %		0 to 0.3

Silicon (Si), %		0
Silicon (Si), %		3.5 to 4.5

Zinc (Zn), %		18.2 to 21.5
Zinc (Zn), %		11.5 to 16.5

Residuals, %		0
Residuals, %		0 to 0.5