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C99700 Brass vs. C36500 Muntz Metal

Both C99700 brass and C36500 Muntz Metal are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 82% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C99700 brass 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, % 25
40
Poisson's Ratio 0.32
0.3
Shear Modulus, GPa 46
39
Tensile Strength: Ultimate (UTS), MPa 380
400
Tensile Strength: Yield (Proof), MPa 170
160

Thermal Properties

Latent Heat of Fusion, J/g 200
170
Maximum Temperature: Mechanical, °C 160
120
Melting Completion (Liquidus), °C 900
900
Melting Onset (Solidus), °C 880
890
Specific Heat Capacity, J/kg-K 410
390
Thermal Expansion, µm/m-K 20
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
28
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
32

Otherwise Unclassified Properties

Base Metal Price, % relative 25
23
Density, g/cm3 8.1
8.0
Embodied Carbon, kg CO2/kg material 3.3
2.7
Embodied Energy, MJ/kg 53
46
Embodied Water, L/kg 320
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
130
Resilience: Unit (Modulus of Resilience), kJ/m3 120
120
Stiffness to Weight: Axial, points 8.3
7.2
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 13
14
Strength to Weight: Bending, points 14
15
Thermal Shock Resistance, points 11
13

Alloy Composition

Aluminum (Al), % 0.5 to 3.0
0
Copper (Cu), % 54 to 65.5
58 to 61
Iron (Fe), % 0 to 1.0
0 to 0.15
Lead (Pb), % 0 to 2.0
0.25 to 0.7
Manganese (Mn), % 11 to 15
0
Nickel (Ni), % 4.0 to 6.0
0
Tin (Sn), % 0 to 1.0
0 to 0.25
Zinc (Zn), % 19 to 25
37.5 to 41.8
Residuals, % 0
0 to 0.4