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R30006 Cobalt vs. EN 1.3537 Steel

R30006 cobalt belongs to the cobalt alloys classification, while EN 1.3537 steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is R30006 cobalt and the bottom bar is EN 1.3537 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 85
73
Tensile Strength: Ultimate (UTS), MPa 900
620 to 730

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1290
1410
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 15
43
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.7
8.5

Otherwise Unclassified Properties

Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 7.8
1.5
Embodied Energy, MJ/kg 110
21
Embodied Water, L/kg 500
54

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 29
22 to 26
Strength to Weight: Bending, points 24
21 to 23
Thermal Diffusivity, mm2/s 3.9
12
Thermal Shock Resistance, points 26
18 to 22

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Carbon (C), % 0.9 to 1.4
0.93 to 1.1
Chromium (Cr), % 27 to 32
1.7 to 2.0
Cobalt (Co), % 48.6 to 68.1
0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 0 to 3.0
96.4 to 97.8
Manganese (Mn), % 0
0.25 to 0.45
Molybdenum (Mo), % 0 to 1.0
0.15 to 0.3
Nickel (Ni), % 0 to 3.0
0
Oxygen (O), % 0
0 to 0.0015
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 2.0
0.15 to 0.45
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 4.0 to 6.0
0