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C28000 Muntz Metal vs. C84400 Valve Metal

Both C28000 Muntz Metal and C84400 valve metal are copper alloys. They have 70% 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 C28000 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, % 10 to 45
19
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 40
39
Tensile Strength: Ultimate (UTS), MPa 330 to 610
230
Tensile Strength: Yield (Proof), MPa 150 to 370
110

Thermal Properties

Latent Heat of Fusion, J/g 170
180
Maximum Temperature: Mechanical, °C 120
160
Melting Completion (Liquidus), °C 900
1000
Melting Onset (Solidus), °C 900
840
Specific Heat Capacity, J/kg-K 390
370
Thermal Conductivity, W/m-K 120
72
Thermal Expansion, µm/m-K 21
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
16
Electrical Conductivity: Equal Weight (Specific), % IACS 31
17

Otherwise Unclassified Properties

Base Metal Price, % relative 23
29
Density, g/cm3 8.0
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 27 to 240
36
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 670
58
Stiffness to Weight: Axial, points 7.2
6.6
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 11 to 21
7.2
Strength to Weight: Bending, points 13 to 20
9.4
Thermal Diffusivity, mm2/s 40
22
Thermal Shock Resistance, points 11 to 20
8.3

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 59 to 63
78 to 82
Iron (Fe), % 0 to 0.070
0 to 0.4
Lead (Pb), % 0 to 0.3
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), % 36.3 to 41
7.0 to 10
Residuals, % 0
0 to 0.7