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C36500 Muntz Metal vs. C47000 Brass

Both C36500 Muntz Metal and C47000 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. Their average alloy composition is basically identical. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C36500 Muntz Metal and the bottom bar is C47000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
100
Elongation at Break, % 40
36
Poisson's Ratio 0.3
0.3
Shear Modulus, GPa 39
40
Tensile Strength: Ultimate (UTS), MPa 400
380
Tensile Strength: Yield (Proof), MPa 160
150

Thermal Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 23
23
Density, g/cm3 8.0
8.0
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 46
47
Embodied Water, L/kg 320
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
110
Resilience: Unit (Modulus of Resilience), kJ/m3 120
100
Stiffness to Weight: Axial, points 7.2
7.2
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 14
13
Strength to Weight: Bending, points 15
15
Thermal Diffusivity, mm2/s 40
38
Thermal Shock Resistance, points 13
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Copper (Cu), % 58 to 61
57 to 61
Iron (Fe), % 0 to 0.15
0
Lead (Pb), % 0.25 to 0.7
0 to 0.050
Tin (Sn), % 0 to 0.25
0.25 to 1.0
Zinc (Zn), % 37.5 to 41.8
37.5 to 42.8
Residuals, % 0
0 to 0.4