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R31539 Cobalt vs. ASTM A182 Grade F10

R31539 cobalt belongs to the cobalt alloys classification, while ASTM A182 grade F10 belongs to the iron alloys. There are 26 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 R31539 cobalt and the bottom bar is ASTM A182 grade F10.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 13 to 22
34
Fatigue Strength, MPa 310 to 480
180
Poisson's Ratio 0.29
0.29
Reduction in Area, % 13 to 23
56
Shear Modulus, GPa 86
74
Tensile Strength: Ultimate (UTS), MPa 1000 to 1340
630
Tensile Strength: Yield (Proof), MPa 590 to 940
230

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Melting Completion (Liquidus), °C 1360
1420
Melting Onset (Solidus), °C 1290
1370
Specific Heat Capacity, J/kg-K 450
470
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
15
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
17

Otherwise Unclassified Properties

Density, g/cm3 8.4
7.9
Embodied Carbon, kg CO2/kg material 8.2
3.6
Embodied Energy, MJ/kg 110
51
Embodied Water, L/kg 530
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 190
170
Resilience: Unit (Modulus of Resilience), kJ/m3 780 to 2000
140
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 33 to 44
22
Strength to Weight: Bending, points 27 to 32
21
Thermal Shock Resistance, points 24 to 32
18

Alloy Composition

Aluminum (Al), % 0.3 to 1.0
0
Carbon (C), % 0 to 0.14
0.1 to 0.2
Chromium (Cr), % 26 to 30
7.0 to 9.0
Cobalt (Co), % 57.7 to 68.7
0
Iron (Fe), % 0 to 0.75
66.5 to 72.4
Lanthanum (La), % 0.030 to 0.2
0
Manganese (Mn), % 0 to 1.0
0.5 to 0.8
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
19 to 22
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 1.0
1.0 to 1.4
Sulfur (S), % 0
0 to 0.030