C23400 Brass vs. C90900 Bronze

Both C23400 brass and C90900 bronze are copper alloys. They have 83% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C23400 brass and the bottom bar is C90900 bronze.

UNS C23400 Red Brass UNS C90900 Tin Bronze

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.32
Poisson's Ratio		0.34

Shear Modulus, GPa		42
Shear Modulus, GPa		40

Tensile Strength: Ultimate (UTS), MPa		370 to 640
Tensile Strength: Ultimate (UTS), MPa		280

Thermal Properties

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

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

Melting Completion (Liquidus), °C		970
Melting Completion (Liquidus), °C		980

Melting Onset (Solidus), °C		930
Melting Onset (Solidus), °C		820

Specific Heat Capacity, J/kg-K		390
Specific Heat Capacity, J/kg-K		360

Thermal Conductivity, W/m-K		120
Thermal Conductivity, W/m-K		65

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

Otherwise Unclassified Properties

Base Metal Price, % relative		27
Base Metal Price, % relative		36

Density, g/cm³		8.5
Density, g/cm³		8.7

Embodied Carbon, kg CO₂/kg material		2.6
Embodied Carbon, kg CO₂/kg material		3.9

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

Embodied Water, L/kg		320
Embodied Water, L/kg		410

Common Calculations

Stiffness to Weight: Axial, points		7.2
Stiffness to Weight: Axial, points		6.8

Stiffness to Weight: Bending, points		19
Stiffness to Weight: Bending, points		18

Strength to Weight: Axial, points		12 to 21
Strength to Weight: Axial, points		8.8

Strength to Weight: Bending, points		13 to 19
Strength to Weight: Bending, points		11

Thermal Diffusivity, mm²/s		36
Thermal Diffusivity, mm²/s		21

Thermal Shock Resistance, points		12 to 22
Thermal Shock Resistance, points		10

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		0 to 0.0050

Antimony (Sb), %		0
Antimony (Sb), %		0 to 0.2

Copper (Cu), %		81 to 84
Copper (Cu), %		86 to 89

Iron (Fe), %		0 to 0.050
Iron (Fe), %		0 to 0.15

Lead (Pb), %		0 to 0.050
Lead (Pb), %		0 to 0.25

Nickel (Ni), %		0
Nickel (Ni), %		0 to 0.5

Phosphorus (P), %		0
Phosphorus (P), %		0 to 0.050

Silicon (Si), %		0
Silicon (Si), %		0 to 0.0050

Sulfur (S), %		0
Sulfur (S), %		0 to 0.050

Tin (Sn), %		0
Tin (Sn), %		12 to 14

Zinc (Zn), %		15.7 to 19
Zinc (Zn), %		0 to 0.25

Residuals, %		0
Residuals, %		0 to 0.6