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R30155 Cobalt vs. EN 1.3536 Steel

Both R30155 cobalt and EN 1.3536 steel are iron alloys. They have a modest 34% of their average alloy composition in common, which, by itself, doesn't mean much. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is R30155 cobalt and the bottom bar is EN 1.3536 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
200
Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 81
73
Tensile Strength: Ultimate (UTS), MPa 850
660

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
440
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 12
41
Thermal Expansion, µm/m-K 14
13

Otherwise Unclassified Properties

Base Metal Price, % relative 80
2.9
Density, g/cm3 8.5
7.8
Embodied Carbon, kg CO2/kg material 9.7
1.6
Embodied Energy, MJ/kg 150
21
Embodied Water, L/kg 300
55

Common Calculations

PREN (Pitting Resistance) 37
2.8
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 28
23
Strength to Weight: Bending, points 24
22
Thermal Diffusivity, mm2/s 3.2
11
Thermal Shock Resistance, points 21
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Carbon (C), % 0.080 to 0.16
0.93 to 1.1
Chromium (Cr), % 20 to 22.5
1.7 to 2.0
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 24.3 to 36.2
96 to 97.4
Manganese (Mn), % 1.0 to 2.0
0.6 to 0.8
Molybdenum (Mo), % 2.5 to 3.5
0.2 to 0.35
Nickel (Ni), % 19 to 21
0
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0 to 0.2
0
Oxygen (O), % 0
0 to 0.0015
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0.15 to 0.45
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