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EN 1.3961 Alloy vs. R30008 Cobalt

EN 1.3961 alloy belongs to the iron alloys classification, while R30008 cobalt belongs to the cobalt alloys. They have a modest 31% of their average alloy composition in common, which, by itself, doesn't mean much. There are 22 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.3961 alloy and the bottom bar is R30008 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 31
1.1 to 73
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 72
83
Tensile Strength: Ultimate (UTS), MPa 450
950 to 1700
Tensile Strength: Yield (Proof), MPa 310
500 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Melting Completion (Liquidus), °C 1430
1400
Melting Onset (Solidus), °C 1390
1330
Specific Heat Capacity, J/kg-K 460
450
Thermal Expansion, µm/m-K 1.3
13

Otherwise Unclassified Properties

Base Metal Price, % relative 25
95
Density, g/cm3 8.2
8.4
Embodied Carbon, kg CO2/kg material 4.8
8.1
Embodied Energy, MJ/kg 66
110
Embodied Water, L/kg 110
400

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 250
590 to 2720
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 15
31 to 56
Strength to Weight: Bending, points 16
25 to 37
Thermal Shock Resistance, points 130
25 to 44

Alloy Composition

Boron (B), % 0
0 to 0.0010
Carbon (C), % 0 to 0.050
0 to 0.15
Chromium (Cr), % 0 to 0.25
18.5 to 21.5
Cobalt (Co), % 0
39 to 42
Iron (Fe), % 60.7 to 65
7.6 to 20
Manganese (Mn), % 0 to 0.5
1.0 to 2.0
Molybdenum (Mo), % 0 to 1.0
6.5 to 7.5
Nickel (Ni), % 35 to 37
15 to 18
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0 to 0.5
0 to 1.2
Sulfur (S), % 0 to 0.020
0 to 0.015