MakeItFrom.com
Menu (ESC)

R31538 Cobalt vs. C28000 Muntz Metal

R31538 cobalt belongs to the cobalt alloys classification, while C28000 Muntz Metal belongs to the copper 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 R31538 cobalt and the bottom bar is C28000 Muntz Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
100
Elongation at Break, % 13 to 23
10 to 45
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 86
40
Tensile Strength: Ultimate (UTS), MPa 1020 to 1360
330 to 610
Tensile Strength: Yield (Proof), MPa 580 to 930
150 to 370

Thermal Properties

Latent Heat of Fusion, J/g 320
170
Melting Completion (Liquidus), °C 1360
900
Melting Onset (Solidus), °C 1290
900
Specific Heat Capacity, J/kg-K 450
390
Thermal Conductivity, W/m-K 13
120
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
28
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
31

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.0
Embodied Carbon, kg CO2/kg material 8.1
2.7
Embodied Energy, MJ/kg 110
46
Embodied Water, L/kg 530
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 200
27 to 240
Resilience: Unit (Modulus of Resilience), kJ/m3 750 to 1920
110 to 670
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 34 to 45
11 to 21
Strength to Weight: Bending, points 27 to 32
13 to 20
Thermal Diffusivity, mm2/s 3.5
40
Thermal Shock Resistance, points 25 to 33
11 to 20

Alloy Composition


Deprecated: Automatic conversion of false to array is deprecated in /home/public/compare.php on line 460
Carbon (C), % 0.15 to 0.35
0
Chromium (Cr), % 26 to 30
0
Cobalt (Co), % 58.7 to 68.9
0
Copper (Cu), % 0
59 to 63
Iron (Fe), % 0 to 0.75
0 to 0.070
Lead (Pb), % 0
0 to 0.3
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
0
Nitrogen (N), % 0 to 0.25
0
Silicon (Si), % 0 to 1.0
0
Zinc (Zn), % 0
36.3 to 41
Residuals, % 0
0 to 0.3