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R31537 Cobalt vs. SAE-AISI 1010 Steel

R31537 cobalt belongs to the cobalt alloys classification, while SAE-AISI 1010 steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is R31537 cobalt and the bottom bar is SAE-AISI 1010 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 14 to 23
22 to 31
Fatigue Strength, MPa 310 to 480
150 to 230
Poisson's Ratio 0.29
0.29
Reduction in Area, % 13 to 23
46 to 56
Shear Modulus, GPa 87
73
Tensile Strength: Ultimate (UTS), MPa 1000 to 1340
350 to 400
Tensile Strength: Yield (Proof), MPa 590 to 940
190 to 330

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Melting Completion (Liquidus), °C 1360
1470
Melting Onset (Solidus), °C 1290
1430
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 13
47
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
12
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
14

Otherwise Unclassified Properties

Density, g/cm3 8.4
7.9
Embodied Carbon, kg CO2/kg material 8.1
1.4
Embodied Energy, MJ/kg 110
18
Embodied Water, L/kg 530
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 200
82 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 780 to 1990
100 to 290
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 33 to 44
12 to 14
Strength to Weight: Bending, points 26 to 32
14 to 15
Thermal Diffusivity, mm2/s 3.4
13
Thermal Shock Resistance, points 24 to 32
11 to 13

Alloy Composition

Carbon (C), % 0 to 0.14
0.080 to 0.13
Chromium (Cr), % 26 to 30
0
Cobalt (Co), % 58.9 to 69
0
Iron (Fe), % 0 to 0.75
99.18 to 99.62
Manganese (Mn), % 0 to 1.0
0.3 to 0.6
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
0
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0
0 to 0.050

Comparable Variants