C69400 Brass vs. C52400 Bronze

Both C69400 brass and C52400 bronze are copper alloys. They have 82% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C69400 brass and the bottom bar is C52400 bronze.

UNS C69400 Silicon Red Brass UNS C52400 Phosphor Bronze

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.33
Poisson's Ratio		0.34

Shear Modulus, GPa		42
Shear Modulus, GPa		41

Tensile Strength: Ultimate (UTS), MPa		570
Tensile Strength: Ultimate (UTS), MPa		450 to 880

Thermal Properties

Latent Heat of Fusion, J/g		260
Latent Heat of Fusion, J/g		190

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

Melting Completion (Liquidus), °C		920
Melting Completion (Liquidus), °C		1000

Melting Onset (Solidus), °C		820
Melting Onset (Solidus), °C		840

Specific Heat Capacity, J/kg-K		410
Specific Heat Capacity, J/kg-K		370

Thermal Conductivity, W/m-K		26
Thermal Conductivity, W/m-K		50

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		6.2
Electrical Conductivity: Equal Volume, % IACS		11

Electrical Conductivity: Equal Weight (Specific), % IACS		6.7
Electrical Conductivity: Equal Weight (Specific), % IACS		11

Otherwise Unclassified Properties

Base Metal Price, % relative		27
Base Metal Price, % relative		35

Density, g/cm³		8.3
Density, g/cm³		8.8

Embodied Carbon, kg CO₂/kg material		2.7
Embodied Carbon, kg CO₂/kg material		3.6

Embodied Energy, MJ/kg		44
Embodied Energy, MJ/kg		58

Embodied Water, L/kg		300
Embodied Water, L/kg		390

Common Calculations

Stiffness to Weight: Axial, points		7.4
Stiffness to Weight: Axial, points		6.9

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

Strength to Weight: Axial, points		19
Strength to Weight: Axial, points		14 to 28

Strength to Weight: Bending, points		18
Strength to Weight: Bending, points		15 to 23

Thermal Diffusivity, mm²/s		7.7
Thermal Diffusivity, mm²/s		15

Thermal Shock Resistance, points		20
Thermal Shock Resistance, points		17 to 32

Alloy Composition

Copper (Cu), %		80 to 83
Copper (Cu), %		87.8 to 91

Iron (Fe), %		0 to 0.2
Iron (Fe), %		0 to 0.1

Lead (Pb), %		0 to 0.3
Lead (Pb), %		0 to 0.050

Phosphorus (P), %		0
Phosphorus (P), %		0.030 to 0.35

Silicon (Si), %		3.5 to 4.5
Silicon (Si), %		0

Tin (Sn), %		0
Tin (Sn), %		9.0 to 11

Zinc (Zn), %		11.5 to 16.5
Zinc (Zn), %		0 to 0.2

Residuals, %		0
Residuals, %		0 to 0.5