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C28500 Muntz Metal vs. C37000 Muntz Metal

Both C28500 Muntz Metal and C37000 Muntz Metal are copper alloys. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is C28500 Muntz Metal and the bottom bar is C37000 Muntz Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
100
Elongation at Break, % 20
40
Poisson's Ratio 0.3
0.31
Rockwell B Hardness 150
45
Shear Modulus, GPa 40
39
Shear Strength, MPa 320
270
Tensile Strength: Ultimate (UTS), MPa 520
400
Tensile Strength: Yield (Proof), MPa 380
160

Thermal Properties

Latent Heat of Fusion, J/g 170
170
Maximum Temperature: Mechanical, °C 110
120
Melting Completion (Liquidus), °C 900
900
Melting Onset (Solidus), °C 890
890
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 100
120
Thermal Expansion, µm/m-K 21
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
27
Electrical Conductivity: Equal Weight (Specific), % IACS 33
30

Otherwise Unclassified Properties

Base Metal Price, % relative 22
23
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 46
45
Embodied Water, L/kg 320
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
130
Resilience: Unit (Modulus of Resilience), kJ/m3 700
120
Stiffness to Weight: Axial, points 7.3
7.2
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 18
14
Strength to Weight: Bending, points 18
15
Thermal Diffusivity, mm2/s 33
39
Thermal Shock Resistance, points 17
13

Alloy Composition

Copper (Cu), % 57 to 59
59 to 62
Iron (Fe), % 0 to 0.35
0 to 0.15
Lead (Pb), % 0 to 0.25
0.8 to 1.5
Zinc (Zn), % 39.5 to 43
36 to 40.2
Residuals, % 0
0 to 0.4