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C34000 Brass vs. C28000 Muntz Metal

Both C34000 brass and C28000 Muntz Metal are copper alloys. They have a very high 96% 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 C34000 brass and the bottom bar is C28000 Muntz Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
100
Poisson's Ratio 0.31
0.31
Rockwell B Hardness 53 to 91
55 to 78
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 340 to 650
330 to 610

Thermal Properties

Latent Heat of Fusion, J/g 170
170
Maximum Temperature: Mechanical, °C 120
120
Melting Completion (Liquidus), °C 930
900
Melting Onset (Solidus), °C 890
900
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 120
120
Thermal Expansion, µm/m-K 21
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
28
Electrical Conductivity: Equal Weight (Specific), % IACS 29
31

Otherwise Unclassified Properties

Base Metal Price, % relative 24
23
Density, g/cm3 8.1
8.0
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 45
46
Embodied Water, L/kg 320
320

Common Calculations

Stiffness to Weight: Axial, points 7.1
7.2
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 11 to 22
11 to 21
Strength to Weight: Bending, points 13 to 21
13 to 20
Thermal Diffusivity, mm2/s 37
40
Thermal Shock Resistance, points 11 to 22
11 to 20

Alloy Composition

Copper (Cu), % 62 to 65
59 to 63
Iron (Fe), % 0 to 0.1
0 to 0.070
Lead (Pb), % 0.8 to 1.5
0 to 0.3
Zinc (Zn), % 33 to 37.2
36.3 to 41
Residuals, % 0
0 to 0.3

Comparable Variants