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C27400 Brass vs. C36500 Muntz Metal

Both C27400 brass and C36500 Muntz Metal are copper alloys. They have a very high 97% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C27400 brass and the bottom bar is C36500 Muntz Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Poisson's Ratio 0.31
0.3
Rockwell B Hardness 53 to 91
45
Shear Modulus, GPa 40
39
Tensile Strength: Ultimate (UTS), MPa 370 to 650
400

Thermal Properties

Latent Heat of Fusion, J/g 170
170
Maximum Temperature: Mechanical, °C 120
120
Melting Completion (Liquidus), °C 920
900
Melting Onset (Solidus), °C 870
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
28
Electrical Conductivity: Equal Weight (Specific), % IACS 31
32

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 45
46
Embodied Water, L/kg 320
320

Common Calculations

Stiffness to Weight: Axial, points 7.2
7.2
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 13 to 23
14
Strength to Weight: Bending, points 14 to 21
15
Thermal Diffusivity, mm2/s 37
40
Thermal Shock Resistance, points 12 to 22
13

Alloy Composition

Copper (Cu), % 61 to 64
58 to 61
Iron (Fe), % 0 to 0.1
0 to 0.15
Lead (Pb), % 0 to 0.050
0.25 to 0.7
Tin (Sn), % 0
0 to 0.25
Zinc (Zn), % 35.6 to 39
37.5 to 41.8
Residuals, % 0
0 to 0.4