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EN 1.4110 Stainless Steel vs. R30605 Cobalt

EN 1.4110 stainless steel belongs to the iron alloys classification, while R30605 cobalt belongs to the cobalt alloys. There are 25 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 1.4110 stainless steel and the bottom bar is R30605 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 11 to 14
34
Fatigue Strength, MPa 250 to 730
260 to 590
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
81
Tensile Strength: Ultimate (UTS), MPa 770 to 1720
1130 to 1900
Tensile Strength: Yield (Proof), MPa 430 to 1330
470 to 1600

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Melting Completion (Liquidus), °C 1440
1410
Melting Onset (Solidus), °C 1400
1330
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 30
9.6
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
1.8

Otherwise Unclassified Properties

Density, g/cm3 7.7
9.6
Embodied Carbon, kg CO2/kg material 2.3
9.8
Embodied Energy, MJ/kg 33
140
Embodied Water, L/kg 110
450

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 28 to 62
33 to 55
Strength to Weight: Bending, points 24 to 41
25 to 36
Thermal Diffusivity, mm2/s 8.1
2.5
Thermal Shock Resistance, points 27 to 60
31 to 52

Alloy Composition

Carbon (C), % 0.48 to 0.6
0.050 to 0.15
Chromium (Cr), % 13 to 15
19 to 21
Cobalt (Co), % 0
46.4 to 57
Iron (Fe), % 81.4 to 86
0 to 3.0
Manganese (Mn), % 0 to 1.0
1.0 to 2.0
Molybdenum (Mo), % 0.5 to 0.8
0
Nickel (Ni), % 0
9.0 to 11
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
14 to 16
Vanadium (V), % 0 to 0.15
0

Comparable Variants