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R30155 Cobalt vs. AISI 410Cb Stainless Steel

Both R30155 cobalt and AISI 410Cb stainless steel are iron alloys. They have 44% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is R30155 cobalt and the bottom bar is AISI 410Cb stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
200 to 270
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 34
15
Fatigue Strength, MPa 310
180 to 460
Poisson's Ratio 0.29
0.28
Reduction in Area, % 34
50 to 51
Shear Modulus, GPa 81
76
Shear Strength, MPa 570
340 to 590
Tensile Strength: Ultimate (UTS), MPa 850
550 to 960
Tensile Strength: Yield (Proof), MPa 390
310 to 790

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 570
410
Maximum Temperature: Mechanical, °C 1100
730
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 12
27
Thermal Expansion, µm/m-K 14
10

Otherwise Unclassified Properties

Base Metal Price, % relative 80
7.5
Density, g/cm3 8.5
7.7
Embodied Carbon, kg CO2/kg material 9.7
2.0
Embodied Energy, MJ/kg 150
29
Embodied Water, L/kg 300
97

Common Calculations

PREN (Pitting Resistance) 37
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
70 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 370
240 to 1600
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 28
20 to 35
Strength to Weight: Bending, points 24
19 to 28
Thermal Diffusivity, mm2/s 3.2
7.3
Thermal Shock Resistance, points 21
20 to 35

Alloy Composition

Carbon (C), % 0.080 to 0.16
0 to 0.18
Chromium (Cr), % 20 to 22.5
11 to 13
Cobalt (Co), % 18.5 to 21
0
Iron (Fe), % 24.3 to 36.2
84.5 to 89
Manganese (Mn), % 1.0 to 2.0
0 to 1.0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
0
Niobium (Nb), % 0.75 to 1.3
0.050 to 0.3
Nitrogen (N), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tantalum (Ta), % 0.75 to 1.3
0
Tungsten (W), % 2.0 to 3.0
0