MakeItFrom.com
Menu (ESC)

R31233 Cobalt vs. EN 1.7710 Steel

R31233 cobalt belongs to the cobalt alloys classification, while EN 1.7710 steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is R31233 cobalt and the bottom bar is EN 1.7710 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 17
6.8 to 11
Fatigue Strength, MPa 220
500 to 620
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 85
73
Tensile Strength: Ultimate (UTS), MPa 1020
930 to 1070
Tensile Strength: Yield (Proof), MPa 420
800 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 320
260
Melting Completion (Liquidus), °C 1350
1470
Melting Onset (Solidus), °C 1330
1430
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 12
41
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
8.6

Otherwise Unclassified Properties

Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 8.4
2.2
Embodied Energy, MJ/kg 110
30
Embodied Water, L/kg 480
57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
73 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 410
1680 to 2970
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 33
33 to 38
Strength to Weight: Bending, points 26
27 to 30
Thermal Diffusivity, mm2/s 3.2
11
Thermal Shock Resistance, points 25
27 to 31

Alloy Composition

Boron (B), % 0 to 0.015
0
Carbon (C), % 0.020 to 0.1
0.12 to 0.18
Chromium (Cr), % 23.5 to 27.5
1.3 to 1.8
Cobalt (Co), % 44.7 to 63.3
0
Iron (Fe), % 1.0 to 5.0
95.1 to 97
Manganese (Mn), % 0.1 to 1.5
0.6 to 1.0
Molybdenum (Mo), % 4.0 to 6.0
0.8 to 1.0
Nickel (Ni), % 7.0 to 11
0
Nitrogen (N), % 0.030 to 0.12
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.050 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 1.0 to 3.0
0
Vanadium (V), % 0
0.15 to 0.25