C87500 Brass vs. C27400 Brass

Both C87500 brass and C27400 brass are copper alloys. They have 77% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C87500 brass and the bottom bar is C27400 brass.

UNS C87500 Silicon Brass UNS C27400 (CW508L) Yellow 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		0.31

Shear Modulus, GPa		42
Shear Modulus, GPa		40

Tensile Strength: Ultimate (UTS), MPa		460
Tensile Strength: Ultimate (UTS), MPa		370 to 650

Thermal Properties

Latent Heat of Fusion, J/g		260
Latent Heat of Fusion, J/g		170

Maximum Temperature: Mechanical, °C		170
Maximum Temperature: Mechanical, °C		120

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

Melting Onset (Solidus), °C		820
Melting Onset (Solidus), °C		870

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

Thermal Conductivity, W/m-K		28
Thermal Conductivity, W/m-K		120

Thermal Expansion, µm/m-K		18
Thermal Expansion, µm/m-K		21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		6.7
Electrical Conductivity: Equal Volume, % IACS		28

Electrical Conductivity: Equal Weight (Specific), % IACS		7.3
Electrical Conductivity: Equal Weight (Specific), % IACS		31

Otherwise Unclassified Properties

Base Metal Price, % relative		27
Base Metal Price, % relative		23

Density, g/cm³		8.3
Density, g/cm³		8.0

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

Embodied Energy, MJ/kg		44
Embodied Energy, MJ/kg		45

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		20

Strength to Weight: Axial, points		16
Strength to Weight: Axial, points		13 to 23

Strength to Weight: Bending, points		16
Strength to Weight: Bending, points		14 to 21

Thermal Diffusivity, mm²/s		8.3
Thermal Diffusivity, mm²/s		37

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

Alloy Composition

Aluminum (Al), %		0 to 0.5
Aluminum (Al), %		0

Copper (Cu), %		79 to 85
Copper (Cu), %		61 to 64

Iron (Fe), %		0
Iron (Fe), %		0 to 0.1

Lead (Pb), %		0 to 0.5
Lead (Pb), %		0 to 0.050

Silicon (Si), %		3.0 to 5.0
Silicon (Si), %		0

Zinc (Zn), %		12 to 16
Zinc (Zn), %		35.6 to 39

Residuals, %		0
Residuals, %		0 to 0.3