MakeItFrom.com
Menu (ESC)

Grade CW12MW Nickel vs. R30021 Cobalt

Grade CW12MW nickel belongs to the nickel alloys classification, while R30021 cobalt belongs to the cobalt alloys. They have a modest 26% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade CW12MW nickel and the bottom bar is R30021 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
220
Elongation at Break, % 4.6
9.0
Fatigue Strength, MPa 130
250
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 85
86
Tensile Strength: Ultimate (UTS), MPa 560
700
Tensile Strength: Yield (Proof), MPa 310
500

Thermal Properties

Latent Heat of Fusion, J/g 320
330
Melting Completion (Liquidus), °C 1610
1350
Melting Onset (Solidus), °C 1560
1190
Specific Heat Capacity, J/kg-K 410
450
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Density, g/cm3 9.1
8.4
Embodied Carbon, kg CO2/kg material 13
8.0
Embodied Energy, MJ/kg 180
110
Embodied Water, L/kg 280
520

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
57
Resilience: Unit (Modulus of Resilience), kJ/m3 220
570
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 17
23
Strength to Weight: Bending, points 17
21
Thermal Shock Resistance, points 16
21

Alloy Composition

Carbon (C), % 0 to 0.12
0.2 to 0.35
Chromium (Cr), % 15.5 to 17.5
26 to 29
Cobalt (Co), % 0
61.7 to 67.3
Iron (Fe), % 4.5 to 7.5
0 to 3.0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 16 to 18
4.5 to 6.0
Nickel (Ni), % 49.2 to 60.1
2.0 to 3.0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 3.8 to 5.3
0
Vanadium (V), % 0.2 to 0.4
0