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SAE-AISI 1010 Steel vs. R30605 Cobalt

SAE-AISI 1010 steel belongs to the iron alloys classification, while R30605 cobalt belongs to the cobalt alloys. There are 25 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 SAE-AISI 1010 steel and the bottom bar is R30605 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 22 to 31
34
Fatigue Strength, MPa 150 to 230
260 to 590
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
81
Tensile Strength: Ultimate (UTS), MPa 350 to 400
1130 to 1900
Tensile Strength: Yield (Proof), MPa 190 to 330
470 to 1600

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Melting Completion (Liquidus), °C 1470
1410
Melting Onset (Solidus), °C 1430
1330
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 47
9.6
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 14
1.8

Otherwise Unclassified Properties

Density, g/cm3 7.9
9.6
Embodied Carbon, kg CO2/kg material 1.4
9.8
Embodied Energy, MJ/kg 18
140
Embodied Water, L/kg 45
450

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 12 to 14
33 to 55
Strength to Weight: Bending, points 14 to 15
25 to 36
Thermal Diffusivity, mm2/s 13
2.5
Thermal Shock Resistance, points 11 to 13
31 to 52

Alloy Composition

Carbon (C), % 0.080 to 0.13
0.050 to 0.15
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
46.4 to 57
Iron (Fe), % 99.18 to 99.62
0 to 3.0
Manganese (Mn), % 0.3 to 0.6
1.0 to 2.0
Nickel (Ni), % 0
9.0 to 11
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0 to 0.050
0 to 0.030
Tungsten (W), % 0
14 to 16

Comparable Variants