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C36500 Muntz Metal vs. C85500 Brass

Both C36500 Muntz Metal and C85500 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a very high 98% of their average alloy composition in common. There are 29 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 C36500 Muntz Metal and the bottom bar is C85500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
100
Elongation at Break, % 40
40
Poisson's Ratio 0.3
0.31
Rockwell B Hardness 45
55
Shear Modulus, GPa 39
40
Tensile Strength: Ultimate (UTS), MPa 400
410
Tensile Strength: Yield (Proof), MPa 160
160

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
26
Electrical Conductivity: Equal Weight (Specific), % IACS 32
29

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
46
Embodied Water, L/kg 320
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
130
Resilience: Unit (Modulus of Resilience), kJ/m3 120
120
Stiffness to Weight: Axial, points 7.2
7.3
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 14
14
Strength to Weight: Bending, points 15
15
Thermal Diffusivity, mm2/s 40
38
Thermal Shock Resistance, points 13
14

Alloy Composition

Copper (Cu), % 58 to 61
59 to 63
Iron (Fe), % 0 to 0.15
0 to 0.2
Lead (Pb), % 0.25 to 0.7
0 to 0.2
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0
0 to 0.2
Tin (Sn), % 0 to 0.25
0 to 0.2
Zinc (Zn), % 37.5 to 41.8
35.1 to 41
Residuals, % 0
0 to 0.9