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C36500 Muntz Metal vs. C67400 Bronze

Both C36500 Muntz Metal and C67400 bronze are copper alloys. They have a moderately high 95% of their average alloy composition in common.

For each property being compared, the top bar is C36500 Muntz Metal and the bottom bar is C67400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 40
22 to 28
Poisson's Ratio 0.3
0.31
Rockwell B Hardness 45
78 to 85
Shear Modulus, GPa 39
41
Shear Strength, MPa 270
310 to 350
Tensile Strength: Ultimate (UTS), MPa 400
480 to 610
Tensile Strength: Yield (Proof), MPa 160
250 to 370

Thermal Properties

Latent Heat of Fusion, J/g 170
190
Maximum Temperature: Mechanical, °C 120
130
Melting Completion (Liquidus), °C 900
890
Melting Onset (Solidus), °C 890
870
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 120
100
Thermal Expansion, µm/m-K 21
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
23
Electrical Conductivity: Equal Weight (Specific), % IACS 32
26

Otherwise Unclassified Properties

Base Metal Price, % relative 23
23
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 46
48
Embodied Water, L/kg 320
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 120
300 to 660
Stiffness to Weight: Axial, points 7.2
7.5
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 14
17 to 22
Strength to Weight: Bending, points 15
17 to 20
Thermal Diffusivity, mm2/s 40
32
Thermal Shock Resistance, points 13
16 to 20

Alloy Composition

Aluminum (Al), % 0
0.5 to 2.0
Copper (Cu), % 58 to 61
57 to 60
Iron (Fe), % 0 to 0.15
0 to 0.35
Lead (Pb), % 0.25 to 0.7
0 to 0.5
Manganese (Mn), % 0
2.0 to 3.5
Nickel (Ni), % 0
0 to 0.25
Silicon (Si), % 0
0.5 to 1.5
Tin (Sn), % 0 to 0.25
0 to 0.3
Zinc (Zn), % 37.5 to 41.8
31.1 to 40
Residuals, % 0
0 to 0.5