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C27200 Brass vs. C36500 Muntz Metal

Both C27200 brass and C36500 Muntz Metal are copper alloys. They have a very high 96% of their average alloy composition in common.

For each property being compared, the top bar is C27200 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, % 10 to 50
40
Poisson's Ratio 0.31
0.3
Rockwell B Hardness 53 to 86
45
Shear Modulus, GPa 40
39
Shear Strength, MPa 230 to 320
270
Tensile Strength: Ultimate (UTS), MPa 370 to 590
400
Tensile Strength: Yield (Proof), MPa 150 to 410
160

Thermal Properties

Latent Heat of Fusion, J/g 170
170
Maximum Temperature: Mechanical, °C 130
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 20
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 24
23
Density, g/cm3 8.1
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

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 270
130
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 810
120
Stiffness to Weight: Axial, points 7.2
7.2
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 13 to 20
14
Strength to Weight: Bending, points 14 to 19
15
Thermal Diffusivity, mm2/s 37
40
Thermal Shock Resistance, points 12 to 20
13

Alloy Composition

Copper (Cu), % 62 to 65
58 to 61
Iron (Fe), % 0 to 0.070
0 to 0.15
Lead (Pb), % 0 to 0.070
0.25 to 0.7
Tin (Sn), % 0
0 to 0.25
Zinc (Zn), % 34.6 to 38
37.5 to 41.8
Residuals, % 0
0 to 0.4