C23400 Brass vs. ZA-12

C23400 brass belongs to the copper alloys classification, while ZA-12 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-12.

UNS C23400 Red Brass Zinc-Aluminum 12 (ZA-12, Z35631)

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		83

Poisson's Ratio		0.32
Poisson's Ratio		0.26

Rockwell B Hardness		52 to 91
Rockwell B Hardness		56 to 63

Shear Modulus, GPa		42
Shear Modulus, GPa		33

Tensile Strength: Ultimate (UTS), MPa		370 to 640
Tensile Strength: Ultimate (UTS), MPa		260 to 400

Thermal Properties

Latent Heat of Fusion, J/g		190
Latent Heat of Fusion, J/g		120

Maximum Temperature: Mechanical, °C		160
Maximum Temperature: Mechanical, °C		100

Melting Completion (Liquidus), °C		970
Melting Completion (Liquidus), °C		430

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

Specific Heat Capacity, J/kg-K		390
Specific Heat Capacity, J/kg-K		450

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

Thermal Expansion, µm/m-K		19
Thermal Expansion, µm/m-K		24

Otherwise Unclassified Properties

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

Density, g/cm³		8.5
Density, g/cm³		6.0

Embodied Carbon, kg CO₂/kg material		2.6
Embodied Carbon, kg CO₂/kg material		3.4

Embodied Energy, MJ/kg		43
Embodied Energy, MJ/kg		64

Embodied Water, L/kg		320
Embodied Water, L/kg		440

Common Calculations

Stiffness to Weight: Axial, points		7.2
Stiffness to Weight: Axial, points		7.6

Stiffness to Weight: Bending, points		19
Stiffness to Weight: Bending, points		24

Strength to Weight: Axial, points		12 to 21
Strength to Weight: Axial, points		12 to 19

Strength to Weight: Bending, points		13 to 19
Strength to Weight: Bending, points		15 to 20

Thermal Diffusivity, mm²/s		36
Thermal Diffusivity, mm²/s		43

Thermal Shock Resistance, points		12 to 22
Thermal Shock Resistance, points		9.4 to 14

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		10.5 to 11.5

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

Copper (Cu), %		81 to 84
Copper (Cu), %		0.5 to 1.2

Iron (Fe), %		0 to 0.050
Iron (Fe), %		0 to 0.075

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

Magnesium (Mg), %		0
Magnesium (Mg), %		0.015 to 0.030

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

Silicon (Si), %		0
Silicon (Si), %		0 to 0.060

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

Zinc (Zn), %		15.7 to 19
Zinc (Zn), %		87.1 to 89

Residuals, %		0 to 0.2
Residuals, %		0