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AISI 410Cb Stainless Steel vs. R30008 Cobalt

AISI 410Cb stainless steel belongs to the iron alloys classification, while R30008 cobalt belongs to the cobalt alloys. They have a modest 27% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AISI 410Cb stainless steel and the bottom bar is R30008 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 15
1.1 to 73
Fatigue Strength, MPa 180 to 460
320 to 530
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
83
Tensile Strength: Ultimate (UTS), MPa 550 to 960
950 to 1700
Tensile Strength: Yield (Proof), MPa 310 to 790
500 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Melting Completion (Liquidus), °C 1450
1400
Melting Onset (Solidus), °C 1400
1330
Specific Heat Capacity, J/kg-K 480
450
Thermal Expansion, µm/m-K 10
13

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
95
Density, g/cm3 7.7
8.4
Embodied Carbon, kg CO2/kg material 2.0
8.1
Embodied Energy, MJ/kg 29
110
Embodied Water, L/kg 97
400

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 1600
590 to 2720
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20 to 35
31 to 56
Strength to Weight: Bending, points 19 to 28
25 to 37
Thermal Shock Resistance, points 20 to 35
25 to 44

Alloy Composition

Boron (B), % 0
0 to 0.0010
Carbon (C), % 0 to 0.18
0 to 0.15
Chromium (Cr), % 11 to 13
18.5 to 21.5
Cobalt (Co), % 0
39 to 42
Iron (Fe), % 84.5 to 89
7.6 to 20
Manganese (Mn), % 0 to 1.0
1.0 to 2.0
Molybdenum (Mo), % 0
6.5 to 7.5
Nickel (Ni), % 0
15 to 18
Niobium (Nb), % 0.050 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 1.2
Sulfur (S), % 0 to 0.030
0 to 0.015

Comparable Variants