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EN 2.4964 Cobalt vs. EN 1.4530 Stainless Steel

EN 2.4964 cobalt belongs to the cobalt alloys classification, while EN 1.4530 stainless steel belongs to the iron alloys. They have a modest 23% of their average alloy composition in common, which, by itself, doesn't mean much. There are 18 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is EN 2.4964 cobalt and the bottom bar is EN 1.4530 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 86
76
Tensile Strength: Ultimate (UTS), MPa 960
1030 to 1370

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Melting Completion (Liquidus), °C 1630
1460
Melting Onset (Solidus), °C 1550
1410
Specific Heat Capacity, J/kg-K 400
470
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Density, g/cm3 9.6
7.9
Embodied Carbon, kg CO2/kg material 9.8
3.4
Embodied Energy, MJ/kg 140
46
Embodied Water, L/kg 450
130

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 28
36 to 48
Strength to Weight: Bending, points 23
29 to 35
Thermal Shock Resistance, points 25
35 to 47

Alloy Composition

Aluminum (Al), % 0
0.6 to 0.8
Carbon (C), % 0.050 to 0.15
0 to 0.015
Chromium (Cr), % 19 to 21
11.5 to 12.5
Cobalt (Co), % 46.4 to 58
0
Iron (Fe), % 0 to 3.0
74.4 to 77.3
Manganese (Mn), % 0 to 2.0
0 to 0.1
Molybdenum (Mo), % 0
1.9 to 2.2
Nickel (Ni), % 9.0 to 11
8.5 to 9.5
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.020
0 to 0.010
Silicon (Si), % 0 to 0.4
0 to 0.1
Sulfur (S), % 0 to 0.015
0 to 0.0050
Titanium (Ti), % 0
0.28 to 0.37
Tungsten (W), % 14 to 16
0