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C37000 Muntz Metal vs. C66700 Brass

Both C37000 Muntz Metal and C66700 brass are copper alloys. They have 89% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C37000 Muntz Metal and the bottom bar is C66700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 40
2.0 to 58
Poisson's Ratio 0.31
0.31
Rockwell B Hardness 45
57 to 93
Shear Modulus, GPa 39
41
Shear Strength, MPa 270
250 to 530
Tensile Strength: Ultimate (UTS), MPa 400
340 to 690
Tensile Strength: Yield (Proof), MPa 160
100 to 640

Thermal Properties

Latent Heat of Fusion, J/g 170
180
Maximum Temperature: Mechanical, °C 120
140
Melting Completion (Liquidus), °C 900
1090
Melting Onset (Solidus), °C 890
1050
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 120
97
Thermal Expansion, µm/m-K 21
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
17
Electrical Conductivity: Equal Weight (Specific), % IACS 30
19

Otherwise Unclassified Properties

Base Metal Price, % relative 23
25
Density, g/cm3 8.1
8.2
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 45
45
Embodied Water, L/kg 320
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
13 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 120
49 to 1900
Stiffness to Weight: Axial, points 7.2
7.3
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 14
11 to 23
Strength to Weight: Bending, points 15
13 to 21
Thermal Diffusivity, mm2/s 39
30
Thermal Shock Resistance, points 13
11 to 23

Alloy Composition

Copper (Cu), % 59 to 62
68.5 to 71.5
Iron (Fe), % 0 to 0.15
0 to 0.1
Lead (Pb), % 0.8 to 1.5
0 to 0.070
Manganese (Mn), % 0
0.8 to 1.5
Zinc (Zn), % 36 to 40.2
26.3 to 30.7
Residuals, % 0
0 to 0.5