MakeItFrom.com
Menu (ESC)

R31539 Cobalt vs. SAE-AISI M3 Class 1 Steel

R31539 cobalt belongs to the cobalt alloys classification, while SAE-AISI M3 class 1 steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is R31539 cobalt and the bottom bar is SAE-AISI M3 class 1 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 1000 to 1340
770 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 320
260
Melting Completion (Liquidus), °C 1360
1610
Melting Onset (Solidus), °C 1290
1570
Specific Heat Capacity, J/kg-K 450
440
Thermal Conductivity, W/m-K 13
26
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.3
Embodied Carbon, kg CO2/kg material 8.2
10
Embodied Energy, MJ/kg 110
150
Embodied Water, L/kg 530
100

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 33 to 44
26 to 72
Strength to Weight: Bending, points 27 to 32
22 to 44
Thermal Diffusivity, mm2/s 3.5
7.2
Thermal Shock Resistance, points 24 to 32
24 to 67

Alloy Composition

Aluminum (Al), % 0.3 to 1.0
0
Carbon (C), % 0 to 0.14
1.0 to 1.1
Chromium (Cr), % 26 to 30
3.8 to 4.5
Cobalt (Co), % 57.7 to 68.7
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 0.75
76.9 to 82.9
Lanthanum (La), % 0.030 to 0.2
0
Manganese (Mn), % 0 to 1.0
0.15 to 0.4
Molybdenum (Mo), % 5.0 to 7.0
4.8 to 6.5
Nickel (Ni), % 0 to 1.0
0 to 0.3
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 1.0
0.2 to 0.45
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
5.0 to 6.8
Vanadium (V), % 0
2.3 to 2.8

Comparable Variants