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C28500 Muntz Metal vs. C64210 Bronze

Both C28500 Muntz Metal and C64210 bronze are copper alloys. They have 59% of their average alloy composition in common.

For each property being compared, the top bar is C28500 Muntz Metal and the bottom bar is C64210 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 20
35
Poisson's Ratio 0.3
0.34
Rockwell B Hardness 150
77
Shear Modulus, GPa 40
42
Shear Strength, MPa 320
380
Tensile Strength: Ultimate (UTS), MPa 520
570
Tensile Strength: Yield (Proof), MPa 380
290

Thermal Properties

Latent Heat of Fusion, J/g 170
250
Maximum Temperature: Mechanical, °C 110
210
Melting Completion (Liquidus), °C 900
1040
Melting Onset (Solidus), °C 890
990
Specific Heat Capacity, J/kg-K 390
430
Thermal Conductivity, W/m-K 100
48
Thermal Expansion, µm/m-K 21
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
13
Electrical Conductivity: Equal Weight (Specific), % IACS 33
14

Otherwise Unclassified Properties

Base Metal Price, % relative 22
29
Density, g/cm3 7.9
8.4
Embodied Carbon, kg CO2/kg material 2.7
3.0
Embodied Energy, MJ/kg 46
49
Embodied Water, L/kg 320
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
170
Resilience: Unit (Modulus of Resilience), kJ/m3 700
360
Stiffness to Weight: Axial, points 7.3
7.4
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 18
19
Strength to Weight: Bending, points 18
18
Thermal Diffusivity, mm2/s 33
13
Thermal Shock Resistance, points 17
21

Alloy Composition

Aluminum (Al), % 0
6.3 to 7.0
Arsenic (As), % 0
0 to 0.15
Copper (Cu), % 57 to 59
89 to 92.2
Iron (Fe), % 0 to 0.35
0 to 0.3
Lead (Pb), % 0 to 0.25
0 to 0.050
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0
0 to 0.25
Silicon (Si), % 0
1.5 to 2.0
Tin (Sn), % 0
0 to 0.2
Zinc (Zn), % 39.5 to 43
0 to 0.5
Residuals, % 0
0 to 0.5