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R30816 Cobalt vs. ASTM A182 Grade F11 Class 2

R30816 cobalt belongs to the cobalt alloys classification, while ASTM A182 grade F11 class 2 belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is R30816 cobalt and the bottom bar is ASTM A182 grade F11 class 2.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280
180
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 23
22
Fatigue Strength, MPa 250
220
Poisson's Ratio 0.3
0.29
Reduction in Area, % 22
34
Shear Modulus, GPa 81
73
Tensile Strength: Ultimate (UTS), MPa 1020
540
Tensile Strength: Yield (Proof), MPa 460
310

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Melting Completion (Liquidus), °C 1540
1460
Melting Onset (Solidus), °C 1460
1420
Specific Heat Capacity, J/kg-K 420
470
Thermal Conductivity, W/m-K 13
39
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Density, g/cm3 9.1
7.8
Embodied Carbon, kg CO2/kg material 20
1.6
Embodied Energy, MJ/kg 320
21
Embodied Water, L/kg 440
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
100
Resilience: Unit (Modulus of Resilience), kJ/m3 510
260
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 31
19
Strength to Weight: Bending, points 25
19
Thermal Diffusivity, mm2/s 3.3
11
Thermal Shock Resistance, points 28
16

Alloy Composition

Carbon (C), % 0.32 to 0.42
0.1 to 0.2
Chromium (Cr), % 19 to 21
1.0 to 1.5
Cobalt (Co), % 40 to 49.8
0
Iron (Fe), % 0 to 5.0
95.8 to 97.7
Manganese (Mn), % 1.0 to 2.0
0.3 to 0.8
Molybdenum (Mo), % 3.5 to 4.5
0.44 to 0.65
Nickel (Ni), % 19 to 21
0
Niobium (Nb), % 3.5 to 4.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0.5 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.040
Tantalum (Ta), % 3.5 to 4.5
0
Tungsten (W), % 3.5 to 4.5
0