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C28000 Muntz Metal vs. C18100 Copper

Both C28000 Muntz Metal and C18100 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 C18100 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 10 to 45
8.3
Poisson's Ratio 0.31
0.34
Rockwell B Hardness 55 to 78
80
Shear Modulus, GPa 40
47
Shear Strength, MPa 230 to 330
300
Tensile Strength: Ultimate (UTS), MPa 330 to 610
510
Tensile Strength: Yield (Proof), MPa 150 to 370
460

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
1020
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 120
320
Thermal Expansion, µm/m-K 21
17

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
2.7
Embodied Energy, MJ/kg 46
43
Embodied Water, L/kg 320
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27 to 240
40
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 670
900
Stiffness to Weight: Axial, points 7.2
7.3
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 11 to 21
16
Strength to Weight: Bending, points 13 to 20
16
Thermal Diffusivity, mm2/s 40
94
Thermal Shock Resistance, points 11 to 20
18

Alloy Composition

Chromium (Cr), % 0
0.4 to 1.2
Copper (Cu), % 59 to 63
98.7 to 99.49
Iron (Fe), % 0 to 0.070
0
Lead (Pb), % 0 to 0.3
0
Magnesium (Mg), % 0
0.030 to 0.060
Zinc (Zn), % 36.3 to 41
0
Zirconium (Zr), % 0
0.080 to 0.2
Residuals, % 0
0 to 0.5