C28500 Muntz Metal vs. C53400 Bronze

Both C28500 Muntz Metal and C53400 bronze are copper alloys. They have 59% 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 C28500 Muntz Metal and the bottom bar is C53400 bronze.

UNS C28500 Muntz Metal UNS C53400 (CW458K) Leaded Phosphor Bronze

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.3
Poisson's Ratio		0.34

Rockwell B Hardness		150
Rockwell B Hardness		67 to 93

Shear Modulus, GPa		40
Shear Modulus, GPa		42

Tensile Strength: Ultimate (UTS), MPa		520
Tensile Strength: Ultimate (UTS), MPa		330 to 720

Thermal Properties

Latent Heat of Fusion, J/g		170
Latent Heat of Fusion, J/g		200

Maximum Temperature: Mechanical, °C		110
Maximum Temperature: Mechanical, °C		180

Melting Completion (Liquidus), °C		900
Melting Completion (Liquidus), °C		1050

Melting Onset (Solidus), °C		890
Melting Onset (Solidus), °C		950

Specific Heat Capacity, J/kg-K		390
Specific Heat Capacity, J/kg-K		380

Thermal Conductivity, W/m-K		100
Thermal Conductivity, W/m-K		69

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		29
Electrical Conductivity: Equal Volume, % IACS		15

Electrical Conductivity: Equal Weight (Specific), % IACS		33
Electrical Conductivity: Equal Weight (Specific), % IACS		15

Otherwise Unclassified Properties

Base Metal Price, % relative		22
Base Metal Price, % relative		32

Density, g/cm³		7.9
Density, g/cm³		8.9

Embodied Carbon, kg CO₂/kg material		2.7
Embodied Carbon, kg CO₂/kg material		3.0

Embodied Energy, MJ/kg		46
Embodied Energy, MJ/kg		49

Embodied Water, L/kg		320
Embodied Water, L/kg		350

Common Calculations

Stiffness to Weight: Axial, points		7.3
Stiffness to Weight: Axial, points		7.0

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

Strength to Weight: Axial, points		18
Strength to Weight: Axial, points		10 to 22

Strength to Weight: Bending, points		18
Strength to Weight: Bending, points		12 to 20

Thermal Diffusivity, mm²/s		33
Thermal Diffusivity, mm²/s		21

Thermal Shock Resistance, points		17
Thermal Shock Resistance, points		12 to 26

Alloy Composition

Copper (Cu), %		57 to 59
Copper (Cu), %		91.8 to 95.7

Iron (Fe), %		0 to 0.35
Iron (Fe), %		0 to 0.1

Lead (Pb), %		0 to 0.25
Lead (Pb), %		0.8 to 1.2

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

Tin (Sn), %		0
Tin (Sn), %		3.5 to 5.8

Zinc (Zn), %		39.5 to 43
Zinc (Zn), %		0 to 0.3

Residuals, %		0
Residuals, %		0 to 0.5