C28500 Muntz Metal vs. C27400 Brass

Both C28500 Muntz Metal and C27400 brass are copper alloys. They have a very high 96% 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 C27400 brass.

UNS C28500 Muntz Metal UNS C27400 (CW508L) Yellow Brass

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		0.31

Rockwell B Hardness		150
Rockwell B Hardness		53 to 91

Shear Modulus, GPa		40
Shear Modulus, GPa		40

Tensile Strength: Ultimate (UTS), MPa		520
Tensile Strength: Ultimate (UTS), MPa		370 to 650

Thermal Properties

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

Maximum Temperature: Mechanical, °C		110
Maximum Temperature: Mechanical, °C		120

Melting Completion (Liquidus), °C		900
Melting Completion (Liquidus), °C		920

Melting Onset (Solidus), °C		890
Melting Onset (Solidus), °C		870

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

Thermal Conductivity, W/m-K		100
Thermal Conductivity, W/m-K		120

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		29
Electrical Conductivity: Equal Volume, % IACS		28

Electrical Conductivity: Equal Weight (Specific), % IACS		33
Electrical Conductivity: Equal Weight (Specific), % IACS		31

Otherwise Unclassified Properties

Base Metal Price, % relative		22
Base Metal Price, % relative		23

Density, g/cm³		7.9
Density, g/cm³		8.0

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

Embodied Energy, MJ/kg		46
Embodied Energy, MJ/kg		45

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

Common Calculations

Stiffness to Weight: Axial, points		7.3
Stiffness to Weight: Axial, points		7.2

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

Strength to Weight: Axial, points		18
Strength to Weight: Axial, points		13 to 23

Strength to Weight: Bending, points		18
Strength to Weight: Bending, points		14 to 21

Thermal Diffusivity, mm²/s		33
Thermal Diffusivity, mm²/s		37

Thermal Shock Resistance, points		17
Thermal Shock Resistance, points		12 to 22

Alloy Composition

Copper (Cu), %		57 to 59
Copper (Cu), %		61 to 64

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

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

Zinc (Zn), %		39.5 to 43
Zinc (Zn), %		35.6 to 39

Residuals, %		0
Residuals, %		0 to 0.3