C23400 Brass vs. C85500 Brass

Both C23400 brass and C85500 brass are copper alloys. They have 79% of their average alloy composition in common. There are 23 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 C23400 brass and the bottom bar is C85500 brass.

UNS C23400 Red Brass UNS C85500 Yellow Brass

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		100

Poisson's Ratio		0.32
Poisson's Ratio		0.31

Rockwell B Hardness		52 to 91
Rockwell B Hardness		55

Shear Modulus, GPa		42
Shear Modulus, GPa		40

Tensile Strength: Ultimate (UTS), MPa		370 to 640
Tensile Strength: Ultimate (UTS), MPa		410

Thermal Properties

Latent Heat of Fusion, J/g		190
Latent Heat of Fusion, J/g		170

Maximum Temperature: Mechanical, °C		160
Maximum Temperature: Mechanical, °C		120

Melting Completion (Liquidus), °C		970
Melting Completion (Liquidus), °C		900

Melting Onset (Solidus), °C		930
Melting Onset (Solidus), °C		890

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

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

Thermal Expansion, µm/m-K		19
Thermal Expansion, µm/m-K		21

Otherwise Unclassified Properties

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

Density, g/cm³		8.5
Density, g/cm³		8.0

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		46

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

Common Calculations

Stiffness to Weight: Axial, points		7.2
Stiffness to Weight: Axial, points		7.3

Stiffness to Weight: Bending, points		19
Stiffness to Weight: Bending, points		20

Strength to Weight: Axial, points		12 to 21
Strength to Weight: Axial, points		14

Strength to Weight: Bending, points		13 to 19
Strength to Weight: Bending, points		15

Thermal Diffusivity, mm²/s		36
Thermal Diffusivity, mm²/s		38

Thermal Shock Resistance, points		12 to 22
Thermal Shock Resistance, points		14

Alloy Composition

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Copper (Cu), %		81 to 84
Copper (Cu), %		59 to 63

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

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

Manganese (Mn), %		0
Manganese (Mn), %		0 to 0.2

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

Tin (Sn), %		0
Tin (Sn), %		0 to 0.2

Zinc (Zn), %		15.7 to 19
Zinc (Zn), %		35.1 to 41

Residuals, %		0 to 0.2
Residuals, %		0 to 0.9