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CC764S Brass vs. C36500 Muntz Metal

Both CC764S brass and C36500 Muntz Metal are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 95% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is CC764S brass and the bottom bar is C36500 Muntz Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 15
40
Poisson's Ratio 0.31
0.3
Shear Modulus, GPa 41
39
Tensile Strength: Ultimate (UTS), MPa 680
400
Tensile Strength: Yield (Proof), MPa 290
160

Thermal Properties

Latent Heat of Fusion, J/g 180
170
Maximum Temperature: Mechanical, °C 130
120
Melting Completion (Liquidus), °C 850
900
Melting Onset (Solidus), °C 810
890
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 94
120
Thermal Expansion, µm/m-K 20
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
28
Electrical Conductivity: Equal Weight (Specific), % IACS 36
32

Otherwise Unclassified Properties

Base Metal Price, % relative 23
23
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 2.9
2.7
Embodied Energy, MJ/kg 49
46
Embodied Water, L/kg 330
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
130
Resilience: Unit (Modulus of Resilience), kJ/m3 390
120
Stiffness to Weight: Axial, points 7.6
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 30
40
Thermal Shock Resistance, points 22
13

Alloy Composition

Aluminum (Al), % 1.0 to 3.0
0
Antimony (Sb), % 0 to 0.050
0
Copper (Cu), % 52 to 66
58 to 61
Iron (Fe), % 0.5 to 2.5
0 to 0.15
Lead (Pb), % 0 to 0.3
0.25 to 0.7
Manganese (Mn), % 0.3 to 4.0
0
Nickel (Ni), % 0 to 3.0
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 0 to 0.3
0 to 0.25
Zinc (Zn), % 20.7 to 50.2
37.5 to 41.8
Residuals, % 0
0 to 0.4