C52400 Bronze vs. C37100 Brass

Both C52400 bronze and C37100 brass are copper alloys. They have 60% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C52400 bronze and the bottom bar is C37100 brass.

UNS C52400 Phosphor Bronze UNS C37100 Leaded Brass

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.34
Poisson's Ratio		0.31

Rockwell Superficial 30T Hardness		54 to 84
Rockwell Superficial 30T Hardness		43 to 71

Shear Modulus, GPa		41
Shear Modulus, GPa		40

Tensile Strength: Ultimate (UTS), MPa		450 to 880
Tensile Strength: Ultimate (UTS), MPa		370 to 520

Thermal Properties

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

Maximum Temperature: Mechanical, °C		170
Maximum Temperature: Mechanical, °C		120

Melting Completion (Liquidus), °C		1000
Melting Completion (Liquidus), °C		900

Melting Onset (Solidus), °C		840
Melting Onset (Solidus), °C		890

Specific Heat Capacity, J/kg-K		370
Specific Heat Capacity, J/kg-K		380

Thermal Conductivity, W/m-K		50
Thermal Conductivity, W/m-K		120

Thermal Expansion, µm/m-K		18
Thermal Expansion, µm/m-K		21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		11
Electrical Conductivity: Equal Volume, % IACS		27

Electrical Conductivity: Equal Weight (Specific), % IACS		11
Electrical Conductivity: Equal Weight (Specific), % IACS		30

Otherwise Unclassified Properties

Base Metal Price, % relative		35
Base Metal Price, % relative		23

Density, g/cm³		8.8
Density, g/cm³		8.0

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

Embodied Energy, MJ/kg		58
Embodied Energy, MJ/kg		45

Embodied Water, L/kg		390
Embodied Water, L/kg		320

Common Calculations

Stiffness to Weight: Axial, points		6.9
Stiffness to Weight: Axial, points		7.2

Stiffness to Weight: Bending, points		18
Stiffness to Weight: Bending, points		20

Strength to Weight: Axial, points		14 to 28
Strength to Weight: Axial, points		13 to 18

Strength to Weight: Bending, points		15 to 23
Strength to Weight: Bending, points		14 to 18

Thermal Diffusivity, mm²/s		15
Thermal Diffusivity, mm²/s		39

Thermal Shock Resistance, points		17 to 32
Thermal Shock Resistance, points		12 to 17

Alloy Composition

Copper (Cu), %		87.8 to 91
Copper (Cu), %		58 to 62

Iron (Fe), %		0 to 0.1
Iron (Fe), %		0 to 0.15

Lead (Pb), %		0 to 0.050
Lead (Pb), %		0.6 to 1.2

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

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

Zinc (Zn), %		0 to 0.2
Zinc (Zn), %		36.3 to 41.4

Residuals, %		0
Residuals, %		0 to 0.4