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R30016 Cobalt vs. SAE-AISI 1006 Steel

R30016 cobalt belongs to the cobalt alloys classification, while SAE-AISI 1006 steel belongs to the iron alloys. There are 28 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 R30016 cobalt and the bottom bar is SAE-AISI 1006 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 8.4
22 to 33
Fatigue Strength, MPa 290
140 to 210
Poisson's Ratio 0.28
0.29
Reduction in Area, % 8.0
49 to 62
Shear Modulus, GPa 85
73
Tensile Strength: Ultimate (UTS), MPa 1010
340 to 370
Tensile Strength: Yield (Proof), MPa 580
180 to 300

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Melting Completion (Liquidus), °C 1360
1470
Melting Onset (Solidus), °C 1270
1430
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 15
53
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
7.9

Otherwise Unclassified Properties

Density, g/cm3 8.5
7.9
Embodied Carbon, kg CO2/kg material 7.7
1.4
Embodied Energy, MJ/kg 110
18
Embodied Water, L/kg 500
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 72
75 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 770
86 to 240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 33
12 to 13
Strength to Weight: Bending, points 26
14 to 15
Thermal Diffusivity, mm2/s 3.9
14
Thermal Shock Resistance, points 24
10 to 11

Alloy Composition

Carbon (C), % 0.9 to 1.4
0 to 0.080
Chromium (Cr), % 28 to 32
0
Cobalt (Co), % 49.6 to 66.9
0
Iron (Fe), % 0 to 3.0
99.43 to 99.75
Manganese (Mn), % 0.5 to 2.0
0.25 to 0.4
Molybdenum (Mo), % 0 to 1.5
0
Nickel (Ni), % 0 to 3.0
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.2 to 2.0
0
Sulfur (S), % 0
0 to 0.050
Tungsten (W), % 3.5 to 5.5
0