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C28500 Muntz Metal vs. C84400 Valve Metal

Both C28500 Muntz Metal and C84400 valve metal are copper alloys. They have 67% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C28500 Muntz Metal and the bottom bar is C84400 valve metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
100
Elongation at Break, % 20
19
Poisson's Ratio 0.3
0.34
Shear Modulus, GPa 40
39
Tensile Strength: Ultimate (UTS), MPa 520
230
Tensile Strength: Yield (Proof), MPa 380
110

Thermal Properties

Latent Heat of Fusion, J/g 170
180
Maximum Temperature: Mechanical, °C 110
160
Melting Completion (Liquidus), °C 900
1000
Melting Onset (Solidus), °C 890
840
Specific Heat Capacity, J/kg-K 390
370
Thermal Conductivity, W/m-K 100
72
Thermal Expansion, µm/m-K 21
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
16
Electrical Conductivity: Equal Weight (Specific), % IACS 33
17

Otherwise Unclassified Properties

Base Metal Price, % relative 22
29
Density, g/cm3 7.9
8.8
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 46
46
Embodied Water, L/kg 320
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
36
Resilience: Unit (Modulus of Resilience), kJ/m3 700
58
Stiffness to Weight: Axial, points 7.3
6.6
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 18
7.2
Strength to Weight: Bending, points 18
9.4
Thermal Diffusivity, mm2/s 33
22
Thermal Shock Resistance, points 17
8.3

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 57 to 59
78 to 82
Iron (Fe), % 0 to 0.35
0 to 0.4
Lead (Pb), % 0 to 0.25
6.0 to 8.0
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
2.3 to 3.5
Zinc (Zn), % 39.5 to 43
7.0 to 10
Residuals, % 0
0 to 0.7