MakeItFrom.com
Menu (ESC)

C28000 Muntz Metal vs. R30012 Cobalt

C28000 Muntz Metal belongs to the copper alloys classification, while R30012 cobalt belongs to the cobalt alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C28000 Muntz Metal and the bottom bar is R30012 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
220
Elongation at Break, % 10 to 45
1.0
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 40
86
Tensile Strength: Ultimate (UTS), MPa 330 to 610
830
Tensile Strength: Yield (Proof), MPa 150 to 370
650

Thermal Properties

Latent Heat of Fusion, J/g 170
320
Melting Completion (Liquidus), °C 900
1470
Melting Onset (Solidus), °C 900
1280
Specific Heat Capacity, J/kg-K 390
440
Thermal Conductivity, W/m-K 120
15
Thermal Expansion, µm/m-K 21
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 31
1.8

Otherwise Unclassified Properties

Density, g/cm3 8.0
8.8
Embodied Carbon, kg CO2/kg material 2.7
8.3
Embodied Energy, MJ/kg 46
120
Embodied Water, L/kg 320
480

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27 to 240
7.7
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 670
960
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 20
23
Strength to Weight: Axial, points 11 to 21
26
Strength to Weight: Bending, points 13 to 20
22
Thermal Diffusivity, mm2/s 40
3.8
Thermal Shock Resistance, points 11 to 20
23

Alloy Composition

Carbon (C), % 0
1.4 to 2.0
Chromium (Cr), % 0
27 to 32
Cobalt (Co), % 0
47.5 to 64.1
Copper (Cu), % 59 to 63
0
Iron (Fe), % 0 to 0.070
0 to 3.0
Lead (Pb), % 0 to 0.3
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0
0 to 3.0
Silicon (Si), % 0
0 to 2.0
Tungsten (W), % 0
7.5 to 9.5
Zinc (Zn), % 36.3 to 41
0
Residuals, % 0 to 0.3
0