C69400 Brass vs. C24000 Brass

Both C69400 brass and C24000 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 C69400 brass and the bottom bar is C24000 brass.

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.33
Poisson's Ratio		0.32

Shear Modulus, GPa		42
Shear Modulus, GPa		42

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

Thermal Properties

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

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

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

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

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

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

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

Electrical Properties

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

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

Otherwise Unclassified Properties

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

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

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

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

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

Common Calculations

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

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

Strength to Weight: Axial, points		19
Strength to Weight: Axial, points		10 to 21

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

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

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

Alloy Composition

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

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

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

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

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

Residuals, %		0
Residuals, %		0 to 0.2