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C28000 Muntz Metal vs. C28500 Muntz Metal

Both C28000 Muntz Metal and C28500 Muntz Metal are copper alloys. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is C28000 Muntz Metal and the bottom bar is C28500 Muntz Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
100
Elongation at Break, % 10 to 45
20
Poisson's Ratio 0.31
0.3
Rockwell B Hardness 55 to 78
150
Shear Modulus, GPa 40
40
Shear Strength, MPa 230 to 330
320
Tensile Strength: Ultimate (UTS), MPa 330 to 610
520
Tensile Strength: Yield (Proof), MPa 150 to 370
380

Thermal Properties

Latent Heat of Fusion, J/g 170
170
Maximum Temperature: Mechanical, °C 120
110
Melting Completion (Liquidus), °C 900
900
Melting Onset (Solidus), °C 900
890
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 120
100
Thermal Expansion, µm/m-K 21
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
29
Electrical Conductivity: Equal Weight (Specific), % IACS 31
33

Otherwise Unclassified Properties

Base Metal Price, % relative 23
22
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 46
46
Embodied Water, L/kg 320
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27 to 240
94
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 670
700
Stiffness to Weight: Axial, points 7.2
7.3
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 11 to 21
18
Strength to Weight: Bending, points 13 to 20
18
Thermal Diffusivity, mm2/s 40
33
Thermal Shock Resistance, points 11 to 20
17

Alloy Composition

Copper (Cu), % 59 to 63
57 to 59
Iron (Fe), % 0 to 0.070
0 to 0.35
Lead (Pb), % 0 to 0.3
0 to 0.25
Zinc (Zn), % 36.3 to 41
39.5 to 43
Residuals, % 0
0 to 0.9