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EN 1.4923 Stainless Steel vs. R30035 Cobalt

EN 1.4923 stainless steel belongs to the iron alloys classification, while R30035 cobalt belongs to the cobalt alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4923 stainless steel and the bottom bar is R30035 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220 to 230
Elongation at Break, % 12 to 21
9.0 to 46
Fatigue Strength, MPa 300 to 440
170 to 740
Poisson's Ratio 0.28
0.29
Reduction in Area, % 40 to 46
40 to 74
Shear Modulus, GPa 76
84 to 89
Tensile Strength: Ultimate (UTS), MPa 870 to 980
900 to 1900
Tensile Strength: Yield (Proof), MPa 470 to 780
300 to 1650

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1320
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 24
11
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
100
Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 2.9
10
Embodied Energy, MJ/kg 41
140
Embodied Water, L/kg 100
410

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 150
160 to 320
Resilience: Unit (Modulus of Resilience), kJ/m3 570 to 1580
210 to 5920
Stiffness to Weight: Axial, points 14
14 to 15
Stiffness to Weight: Bending, points 25
23 to 24
Strength to Weight: Axial, points 31 to 35
29 to 61
Strength to Weight: Bending, points 26 to 28
24 to 39
Thermal Diffusivity, mm2/s 6.5
3.0
Thermal Shock Resistance, points 30 to 34
23 to 46

Alloy Composition

Boron (B), % 0
0 to 0.015
Carbon (C), % 0.18 to 0.24
0 to 0.025
Chromium (Cr), % 11 to 12.5
19 to 21
Cobalt (Co), % 0
29.1 to 39
Iron (Fe), % 83.5 to 87.1
0 to 1.0
Manganese (Mn), % 0.4 to 0.9
0 to 0.15
Molybdenum (Mo), % 0.8 to 1.2
9.0 to 10.5
Nickel (Ni), % 0.3 to 0.8
33 to 37
Phosphorus (P), % 0 to 0.025
0 to 0.015
Silicon (Si), % 0 to 0.5
0 to 0.15
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0
0 to 1.0
Vanadium (V), % 0.25 to 0.35
0

Comparable Variants