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SAE-AISI 1060 Steel vs. R30605 Cobalt

SAE-AISI 1060 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 1060 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, % 10 to 13
34
Fatigue Strength, MPa 260 to 340
260 to 590
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
81
Tensile Strength: Ultimate (UTS), MPa 620 to 740
1130 to 1900
Tensile Strength: Yield (Proof), MPa 400 to 540
470 to 1600

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1330
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 51
9.6
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.6
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 11
1.8

Otherwise Unclassified Properties

Density, g/cm3 7.8
9.6
Embodied Carbon, kg CO2/kg material 1.4
9.8
Embodied Energy, MJ/kg 19
140
Embodied Water, L/kg 46
450

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 22 to 26
33 to 55
Strength to Weight: Bending, points 21 to 23
25 to 36
Thermal Diffusivity, mm2/s 14
2.5
Thermal Shock Resistance, points 20 to 24
31 to 52

Alloy Composition

Carbon (C), % 0.55 to 0.65
0.050 to 0.15
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
46.4 to 57
Iron (Fe), % 98.4 to 98.9
0 to 3.0
Manganese (Mn), % 0.6 to 0.9
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