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R30008 Cobalt vs. EN 1.0452 Steel

R30008 cobalt belongs to the cobalt alloys classification, while EN 1.0452 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is R30008 cobalt and the bottom bar is EN 1.0452 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 1.1 to 73
25
Fatigue Strength, MPa 320 to 530
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 83
73
Tensile Strength: Ultimate (UTS), MPa 950 to 1700
430
Tensile Strength: Yield (Proof), MPa 500 to 1080
290

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1330
1420
Specific Heat Capacity, J/kg-K 450
470
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 95
2.1
Density, g/cm3 8.4
7.9
Embodied Carbon, kg CO2/kg material 8.1
1.5
Embodied Energy, MJ/kg 110
19
Embodied Water, L/kg 400
48

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 590 to 2720
220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 31 to 56
15
Strength to Weight: Bending, points 25 to 37
16
Thermal Shock Resistance, points 25 to 44
13

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.060
Boron (B), % 0 to 0.0010
0
Carbon (C), % 0 to 0.15
0 to 0.17
Chromium (Cr), % 18.5 to 21.5
0 to 0.3
Cobalt (Co), % 39 to 42
0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 7.6 to 20
97.1 to 99.58
Manganese (Mn), % 1.0 to 2.0
0.4 to 1.2
Molybdenum (Mo), % 6.5 to 7.5
0 to 0.080
Nickel (Ni), % 15 to 18
0 to 0.3
Niobium (Nb), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.015
0 to 0.025
Silicon (Si), % 0 to 1.2
0 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0
0 to 0.040
Vanadium (V), % 0
0 to 0.020