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EN 1.3542 Stainless Steel vs. R30006 Cobalt

EN 1.3542 stainless steel belongs to the iron alloys classification, while R30006 cobalt belongs to the cobalt alloys. There are 22 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is EN 1.3542 stainless steel and the bottom bar is R30006 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
85
Tensile Strength: Ultimate (UTS), MPa 720
900

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1390
1290
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 29
15
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.6
1.7

Otherwise Unclassified Properties

Density, g/cm3 7.7
8.6
Embodied Carbon, kg CO2/kg material 2.0
7.8
Embodied Energy, MJ/kg 29
110
Embodied Water, L/kg 100
500

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 26
29
Strength to Weight: Bending, points 23
24
Thermal Diffusivity, mm2/s 7.9
3.9
Thermal Shock Resistance, points 26
26

Alloy Composition

Carbon (C), % 0.6 to 0.7
0.9 to 1.4
Chromium (Cr), % 12.5 to 14.5
27 to 32
Cobalt (Co), % 0
48.6 to 68.1
Iron (Fe), % 82.7 to 87.5
0 to 3.0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0 to 0.75
0 to 1.0
Nickel (Ni), % 0
0 to 3.0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 0
4.0 to 6.0