C23400 Brass vs. ZA-27

C23400 brass belongs to the copper alloys classification, while ZA-27 belongs to the zinc alloys. There are 23 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is C23400 brass and the bottom bar is ZA-27.

UNS C23400 Red Brass Zinc-Aluminum 27 (ZA-27, Z35841)

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		78

Poisson's Ratio		0.32
Poisson's Ratio		0.27

Rockwell B Hardness		52 to 91
Rockwell B Hardness		60 to 72

Shear Modulus, GPa		42
Shear Modulus, GPa		31

Tensile Strength: Ultimate (UTS), MPa		370 to 640
Tensile Strength: Ultimate (UTS), MPa		400 to 430

Thermal Properties

Latent Heat of Fusion, J/g		190
Latent Heat of Fusion, J/g		130

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

Melting Completion (Liquidus), °C		970
Melting Completion (Liquidus), °C		480

Melting Onset (Solidus), °C		930
Melting Onset (Solidus), °C		380

Specific Heat Capacity, J/kg-K		390
Specific Heat Capacity, J/kg-K		530

Thermal Conductivity, W/m-K		120
Thermal Conductivity, W/m-K		130

Thermal Expansion, µm/m-K		19
Thermal Expansion, µm/m-K		26

Otherwise Unclassified Properties

Base Metal Price, % relative		27
Base Metal Price, % relative		11

Density, g/cm³		8.5
Density, g/cm³		5.0

Embodied Carbon, kg CO₂/kg material		2.6
Embodied Carbon, kg CO₂/kg material		4.2

Embodied Energy, MJ/kg		43
Embodied Energy, MJ/kg		80

Embodied Water, L/kg		320
Embodied Water, L/kg		570

Common Calculations

Stiffness to Weight: Axial, points		7.2
Stiffness to Weight: Axial, points		8.6

Stiffness to Weight: Bending, points		19
Stiffness to Weight: Bending, points		28

Strength to Weight: Axial, points		12 to 21
Strength to Weight: Axial, points		22 to 24

Strength to Weight: Bending, points		13 to 19
Strength to Weight: Bending, points		24 to 25

Thermal Diffusivity, mm²/s		36
Thermal Diffusivity, mm²/s		47

Thermal Shock Resistance, points		12 to 22
Thermal Shock Resistance, points		14 to 15

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		25 to 28

Cadmium (Cd), %		0
Cadmium (Cd), %		0 to 0.0060

Copper (Cu), %		81 to 84
Copper (Cu), %		2.0 to 2.5

Iron (Fe), %		0 to 0.050
Iron (Fe), %		0 to 0.1

Lead (Pb), %		0 to 0.050
Lead (Pb), %		0 to 0.0060

Magnesium (Mg), %		0
Magnesium (Mg), %		0.010 to 0.020

Nickel (Ni), %		0
Nickel (Ni), %		0 to 0.020

Silicon (Si), %		0
Silicon (Si), %		0 to 0.080

Tin (Sn), %		0
Tin (Sn), %		0 to 0.0030

Zinc (Zn), %		15.7 to 19
Zinc (Zn), %		69.3 to 73

Residuals, %		0 to 0.2
Residuals, %		0