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R30006 Cobalt vs. EN 1.0348 Steel

R30006 cobalt belongs to the cobalt alloys classification, while EN 1.0348 steel belongs to the iron alloys. There are 27 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 R30006 cobalt and the bottom bar is EN 1.0348 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 1.0
28
Fatigue Strength, MPa 260
160
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 85
73
Tensile Strength: Ultimate (UTS), MPa 900
380
Tensile Strength: Yield (Proof), MPa 540
220

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1290
1420
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 15
50
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.7
8.2

Otherwise Unclassified Properties

Density, g/cm3 8.6
7.9
Embodied Carbon, kg CO2/kg material 7.8
1.5
Embodied Energy, MJ/kg 110
19
Embodied Water, L/kg 500
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8
91
Resilience: Unit (Modulus of Resilience), kJ/m3 670
130
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 29
13
Strength to Weight: Bending, points 24
15
Thermal Diffusivity, mm2/s 3.9
13
Thermal Shock Resistance, points 26
12

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.2
Carbon (C), % 0.9 to 1.4
0 to 0.13
Chromium (Cr), % 27 to 32
0 to 0.3
Cobalt (Co), % 48.6 to 68.1
0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 0 to 3.0
97.5 to 99.98
Manganese (Mn), % 0
0 to 0.7
Molybdenum (Mo), % 0 to 1.0
0 to 0.080
Nickel (Ni), % 0 to 3.0
0 to 0.3
Niobium (Nb), % 0
0 to 0.010
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 2.0
0 to 0.35
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
0 to 0.040
Tungsten (W), % 4.0 to 6.0
0
Vanadium (V), % 0
0 to 0.020