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R30006 Cobalt vs. R05252 Alloy

R30006 cobalt belongs to the cobalt alloys classification, while R05252 alloy belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is R30006 cobalt and the bottom bar is R05252 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 1.0
23
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 85
73
Tensile Strength: Ultimate (UTS), MPa 900
310
Tensile Strength: Yield (Proof), MPa 540
220

Thermal Properties

Latent Heat of Fusion, J/g 320
140
Specific Heat Capacity, J/kg-K 450
140
Thermal Expansion, µm/m-K 11
6.7

Otherwise Unclassified Properties

Density, g/cm3 8.6
17
Embodied Water, L/kg 500
600

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8
63
Resilience: Unit (Modulus of Resilience), kJ/m3 670
120
Stiffness to Weight: Axial, points 14
6.5
Stiffness to Weight: Bending, points 23
12
Strength to Weight: Axial, points 29
5.2
Strength to Weight: Bending, points 24
6.1
Thermal Shock Resistance, points 26
17

Alloy Composition

Carbon (C), % 0.9 to 1.4
0 to 0.010
Chromium (Cr), % 27 to 32
0
Cobalt (Co), % 48.6 to 68.1
0
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0 to 3.0
0 to 0.010
Molybdenum (Mo), % 0 to 1.0
0 to 0.020
Nickel (Ni), % 0 to 3.0
0 to 0.010
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.015
Silicon (Si), % 0 to 2.0
0 to 0.0050
Tantalum (Ta), % 0
88.8 to 91
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 4.0 to 6.0
9.0 to 11