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C28000 Muntz Metal vs. C18200 Copper

Both C28000 Muntz Metal and C18200 copper are copper alloys. They have 61% of their average alloy composition in common.

For each property being compared, the top bar is C28000 Muntz Metal and the bottom bar is C18200 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 10 to 45
11 to 40
Poisson's Ratio 0.31
0.34
Rockwell B Hardness 55 to 78
65 to 82
Shear Modulus, GPa 40
44
Shear Strength, MPa 230 to 330
210 to 320
Tensile Strength: Ultimate (UTS), MPa 330 to 610
310 to 530
Tensile Strength: Yield (Proof), MPa 150 to 370
97 to 450

Thermal Properties

Latent Heat of Fusion, J/g 170
210
Maximum Temperature: Mechanical, °C 120
200
Melting Completion (Liquidus), °C 900
1080
Melting Onset (Solidus), °C 900
1070
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 120
320
Thermal Expansion, µm/m-K 21
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
80
Electrical Conductivity: Equal Weight (Specific), % IACS 31
81

Otherwise Unclassified Properties

Base Metal Price, % relative 23
31
Density, g/cm3 8.0
8.9
Embodied Carbon, kg CO2/kg material 2.7
2.6
Embodied Energy, MJ/kg 46
41
Embodied Water, L/kg 320
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27 to 240
43 to 96
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 670
40 to 860
Stiffness to Weight: Axial, points 7.2
7.3
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 11 to 21
9.6 to 16
Strength to Weight: Bending, points 13 to 20
11 to 16
Thermal Diffusivity, mm2/s 40
93
Thermal Shock Resistance, points 11 to 20
11 to 18

Alloy Composition

Chromium (Cr), % 0
0.6 to 1.2
Copper (Cu), % 59 to 63
98.6 to 99.4
Iron (Fe), % 0 to 0.070
0 to 0.1
Lead (Pb), % 0 to 0.3
0 to 0.050
Silicon (Si), % 0
0 to 0.1
Zinc (Zn), % 36.3 to 41
0
Residuals, % 0 to 0.3
0