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EN 2.4964 Cobalt vs. SAE-AISI M1 Steel

EN 2.4964 cobalt belongs to the cobalt alloys classification, while SAE-AISI M1 steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 2.4964 cobalt and the bottom bar is SAE-AISI M1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 86
77
Tensile Strength: Ultimate (UTS), MPa 960
730 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Melting Completion (Liquidus), °C 1630
1560
Melting Onset (Solidus), °C 1550
1510
Specific Heat Capacity, J/kg-K 400
450
Thermal Conductivity, W/m-K 15
29
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.1
Embodied Carbon, kg CO2/kg material 9.8
7.0
Embodied Energy, MJ/kg 140
99
Embodied Water, L/kg 450
98

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 28
25 to 73
Strength to Weight: Bending, points 23
22 to 45
Thermal Diffusivity, mm2/s 3.9
8.0
Thermal Shock Resistance, points 25
23 to 66

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.78 to 0.88
Chromium (Cr), % 19 to 21
3.5 to 4.0
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 3.0
81 to 84.8
Manganese (Mn), % 0 to 2.0
0.15 to 0.4
Molybdenum (Mo), % 0
8.2 to 9.2
Nickel (Ni), % 9.0 to 11
0 to 0.3
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.4
0.2 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 14 to 16
1.4 to 2.1
Vanadium (V), % 0
1.0 to 1.4