MakeItFrom.com
Menu (ESC)

R31539 Cobalt vs. EN 1.4606 Stainless Steel

R31539 cobalt belongs to the cobalt alloys classification, while EN 1.4606 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is R31539 cobalt and the bottom bar is EN 1.4606 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 13 to 22
23 to 39
Fatigue Strength, MPa 310 to 480
240 to 420
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 86
75
Tensile Strength: Ultimate (UTS), MPa 1000 to 1340
600 to 1020
Tensile Strength: Yield (Proof), MPa 590 to 940
280 to 630

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Melting Completion (Liquidus), °C 1360
1430
Melting Onset (Solidus), °C 1290
1380
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 13
14
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
2.2

Otherwise Unclassified Properties

Density, g/cm3 8.4
7.9
Embodied Carbon, kg CO2/kg material 8.2
6.0
Embodied Energy, MJ/kg 110
87
Embodied Water, L/kg 530
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 190
190 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 780 to 2000
200 to 1010
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 33 to 44
21 to 36
Strength to Weight: Bending, points 27 to 32
20 to 28
Thermal Diffusivity, mm2/s 3.5
3.7
Thermal Shock Resistance, points 24 to 32
21 to 35

Alloy Composition

Aluminum (Al), % 0.3 to 1.0
0 to 0.35
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0 to 0.14
0 to 0.080
Chromium (Cr), % 26 to 30
13 to 16
Cobalt (Co), % 57.7 to 68.7
0
Iron (Fe), % 0 to 0.75
49.2 to 59
Lanthanum (La), % 0.030 to 0.2
0
Manganese (Mn), % 0 to 1.0
1.0 to 2.0
Molybdenum (Mo), % 5.0 to 7.0
1.0 to 1.5
Nickel (Ni), % 0 to 1.0
24 to 27
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
1.9 to 2.3
Vanadium (V), % 0
0.1 to 0.5