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C95820 Bronze vs. C36500 Muntz Metal

Both C95820 bronze and C36500 Muntz Metal are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 60% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C95820 bronze and the bottom bar is C36500 Muntz Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
100
Elongation at Break, % 15
40
Poisson's Ratio 0.34
0.3
Shear Modulus, GPa 44
39
Tensile Strength: Ultimate (UTS), MPa 730
400
Tensile Strength: Yield (Proof), MPa 310
160

Thermal Properties

Latent Heat of Fusion, J/g 230
170
Maximum Temperature: Mechanical, °C 230
120
Melting Completion (Liquidus), °C 1080
900
Melting Onset (Solidus), °C 1020
890
Specific Heat Capacity, J/kg-K 440
390
Thermal Conductivity, W/m-K 38
120
Thermal Expansion, µm/m-K 17
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
28
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
32

Otherwise Unclassified Properties

Base Metal Price, % relative 29
23
Density, g/cm3 8.3
8.0
Embodied Carbon, kg CO2/kg material 3.5
2.7
Embodied Energy, MJ/kg 56
46
Embodied Water, L/kg 380
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
130
Resilience: Unit (Modulus of Resilience), kJ/m3 400
120
Stiffness to Weight: Axial, points 8.0
7.2
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 24
14
Strength to Weight: Bending, points 22
15
Thermal Diffusivity, mm2/s 11
40
Thermal Shock Resistance, points 25
13

Alloy Composition

Aluminum (Al), % 9.0 to 10
0
Copper (Cu), % 77.5 to 82.5
58 to 61
Iron (Fe), % 4.0 to 5.0
0 to 0.15
Lead (Pb), % 0 to 0.020
0.25 to 0.7
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 4.5 to 5.8
0
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 0 to 0.020
0 to 0.25
Zinc (Zn), % 0 to 0.2
37.5 to 41.8
Residuals, % 0
0 to 0.4