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EN 1.4466 Stainless Steel vs. R30003 Cobalt

EN 1.4466 stainless steel belongs to the iron alloys classification, while R30003 cobalt belongs to the cobalt alloys. They have 54% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.4466 stainless steel and the bottom bar is R30003 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 42
10 to 73
Fatigue Strength, MPa 250
320 to 560
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
83
Tensile Strength: Ultimate (UTS), MPa 640
970 to 1720
Tensile Strength: Yield (Proof), MPa 280
510 to 1090

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Melting Completion (Liquidus), °C 1420
1400
Melting Onset (Solidus), °C 1380
1440
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 14
13
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 28
95
Density, g/cm3 7.9
8.4
Embodied Carbon, kg CO2/kg material 5.0
8.0
Embodied Energy, MJ/kg 70
110
Embodied Water, L/kg 200
400

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 200
600 to 2790
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
32 to 57
Strength to Weight: Bending, points 21
26 to 38
Thermal Diffusivity, mm2/s 3.7
3.3
Thermal Shock Resistance, points 14
26 to 45

Alloy Composition

Boron (B), % 0
0 to 0.1
Carbon (C), % 0 to 0.020
0 to 0.15
Chromium (Cr), % 24 to 26
19 to 21
Cobalt (Co), % 0
39 to 41
Iron (Fe), % 45.6 to 52.9
10 to 20.5
Manganese (Mn), % 0 to 2.0
1.5 to 2.5
Molybdenum (Mo), % 2.0 to 2.5
6.0 to 8.0
Nickel (Ni), % 21 to 23
14 to 16
Nitrogen (N), % 0.1 to 0.16
0
Phosphorus (P), % 0 to 0.025
0 to 0.015
Silicon (Si), % 0 to 0.7
0 to 1.2
Sulfur (S), % 0 to 0.010
0 to 0.015