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C28500 Muntz Metal vs. C44500 Brass

Both C28500 Muntz Metal and C44500 brass are copper alloys. They have 85% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C28500 Muntz Metal and the bottom bar is C44500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Poisson's Ratio 0.3
0.32
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 520
350
Tensile Strength: Yield (Proof), MPa 380
120

Thermal Properties

Latent Heat of Fusion, J/g 170
180
Maximum Temperature: Mechanical, °C 110
140
Melting Completion (Liquidus), °C 900
940
Melting Onset (Solidus), °C 890
900
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 100
110
Thermal Expansion, µm/m-K 21
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
25
Electrical Conductivity: Equal Weight (Specific), % IACS 33
27

Otherwise Unclassified Properties

Base Metal Price, % relative 22
26
Density, g/cm3 7.9
8.3
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 46
46
Embodied Water, L/kg 320
330

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 700
65
Stiffness to Weight: Axial, points 7.3
7.2
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 18
12
Strength to Weight: Bending, points 18
13
Thermal Diffusivity, mm2/s 33
35
Thermal Shock Resistance, points 17
12

Alloy Composition

Copper (Cu), % 57 to 59
70 to 73
Iron (Fe), % 0 to 0.35
0 to 0.060
Lead (Pb), % 0 to 0.25
0 to 0.070
Phosphorus (P), % 0
0.020 to 0.1
Tin (Sn), % 0
0.9 to 1.2
Zinc (Zn), % 39.5 to 43
25.2 to 29.1
Residuals, % 0
0 to 0.4