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SAE-AISI T1 Steel vs. AWS BCo-1

SAE-AISI T1 steel belongs to the iron alloys classification, while AWS BCo-1 belongs to the cobalt alloys. There are 18 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI T1 steel and the bottom bar is AWS BCo-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 80
78
Tensile Strength: Ultimate (UTS), MPa 770 to 2130
700

Thermal Properties

Latent Heat of Fusion, J/g 240
420
Melting Completion (Liquidus), °C 1810
1150
Melting Onset (Solidus), °C 1750
1120
Specific Heat Capacity, J/kg-K 410
480
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Density, g/cm3 9.3
8.1
Embodied Carbon, kg CO2/kg material 8.2
8.0
Embodied Energy, MJ/kg 130
110
Embodied Water, L/kg 90
430

Common Calculations

Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 23 to 64
24
Strength to Weight: Bending, points 20 to 40
22
Thermal Shock Resistance, points 23 to 64
21

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
0.7 to 0.9
Carbon (C), % 0.65 to 0.8
0.35 to 0.45
Chromium (Cr), % 3.8 to 4.5
18 to 20
Cobalt (Co), % 0
46 to 54
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 73.2 to 77.2
0 to 1.0
Manganese (Mn), % 0.1 to 0.4
0
Nickel (Ni), % 0 to 0.3
16 to 18
Phosphorus (P), % 0 to 0.030
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0.2 to 0.4
7.5 to 8.5
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Tungsten (W), % 17.3 to 18.8
3.5 to 4.5
Vanadium (V), % 0.9 to 1.3
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5