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SAE-AISI T1 Steel vs. R30075 Cobalt

SAE-AISI T1 steel belongs to the iron alloys classification, while R30075 cobalt belongs to the cobalt alloys. There are 20 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI T1 steel and the bottom bar is R30075 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210 to 250
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
82 to 98
Tensile Strength: Ultimate (UTS), MPa 770 to 2130
780 to 1280

Thermal Properties

Latent Heat of Fusion, J/g 240
320
Melting Completion (Liquidus), °C 1810
1360
Melting Onset (Solidus), °C 1750
1290
Specific Heat Capacity, J/kg-K 410
450
Thermal Conductivity, W/m-K 20
13
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Density, g/cm3 9.3
8.4
Embodied Carbon, kg CO2/kg material 8.2
8.1
Embodied Energy, MJ/kg 130
110
Embodied Water, L/kg 90
530

Common Calculations

Stiffness to Weight: Axial, points 12
14 to 17
Stiffness to Weight: Bending, points 21
24 to 25
Strength to Weight: Axial, points 23 to 64
26 to 42
Strength to Weight: Bending, points 20 to 40
22 to 31
Thermal Diffusivity, mm2/s 5.2
3.5
Thermal Shock Resistance, points 23 to 64
21 to 29

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Boron (B), % 0
0 to 0.010
Carbon (C), % 0.65 to 0.8
0 to 0.35
Chromium (Cr), % 3.8 to 4.5
27 to 30
Cobalt (Co), % 0
58.7 to 68
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 73.2 to 77.2
0 to 0.75
Manganese (Mn), % 0.1 to 0.4
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 0 to 0.3
0 to 0.5
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.2 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0 to 0.1
Tungsten (W), % 17.3 to 18.8
0 to 0.2
Vanadium (V), % 0.9 to 1.3
0

Comparable Variants