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Grade Ti-Pd18 Titanium vs. SAE-AISI T8 Steel

Grade Ti-Pd18 titanium belongs to the titanium alloys classification, while SAE-AISI T8 steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is grade Ti-Pd18 titanium and the bottom bar is SAE-AISI T8 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
78
Tensile Strength: Ultimate (UTS), MPa 710
780 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Melting Completion (Liquidus), °C 1640
1730
Melting Onset (Solidus), °C 1590
1670
Specific Heat Capacity, J/kg-K 550
420
Thermal Conductivity, W/m-K 8.2
18
Thermal Expansion, µm/m-K 9.1
12

Otherwise Unclassified Properties

Density, g/cm3 4.5
9.0
Embodied Carbon, kg CO2/kg material 41
10
Embodied Energy, MJ/kg 670
160
Embodied Water, L/kg 270
120

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 35
22
Strength to Weight: Axial, points 44
24 to 66
Strength to Weight: Bending, points 39
21 to 41
Thermal Diffusivity, mm2/s 3.3
4.8
Thermal Shock Resistance, points 52
24 to 66

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Carbon (C), % 0 to 0.1
0.75 to 0.85
Chromium (Cr), % 0
3.8 to 4.5
Cobalt (Co), % 0
4.3 to 5.8
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
69.3 to 75.4
Manganese (Mn), % 0
0.2 to 0.4
Molybdenum (Mo), % 0
0.4 to 1.0
Nickel (Ni), % 0 to 0.050
0 to 0.3
Oxygen (O), % 0 to 0.15
0
Palladium (Pd), % 0.040 to 0.080
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.2 to 0.4
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 92.5 to 95.5
0
Tungsten (W), % 0
13.3 to 14.8
Vanadium (V), % 2.0 to 3.0
1.8 to 2.4
Residuals, % 0 to 0.4
0