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Grade Ti-Pd18 Titanium vs. SAE-AISI D5 Steel

Grade Ti-Pd18 titanium belongs to the titanium alloys classification, while SAE-AISI D5 steel belongs to the iron alloys. There are 23 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 grade Ti-Pd18 titanium and the bottom bar is SAE-AISI D5 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 17
5.4 to 14
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
75
Tensile Strength: Ultimate (UTS), MPa 710
770 to 2030

Thermal Properties

Latent Heat of Fusion, J/g 410
270
Melting Completion (Liquidus), °C 1640
1430
Melting Onset (Solidus), °C 1590
1390
Specific Heat Capacity, J/kg-K 550
480
Thermal Conductivity, W/m-K 8.2
27
Thermal Expansion, µm/m-K 9.1
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
4.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
4.9

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 41
3.5
Embodied Energy, MJ/kg 670
51
Embodied Water, L/kg 270
120

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 44
28 to 73
Strength to Weight: Bending, points 39
24 to 46
Thermal Diffusivity, mm2/s 3.3
7.4
Thermal Shock Resistance, points 52
26 to 67

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Carbon (C), % 0 to 0.1
1.4 to 1.6
Chromium (Cr), % 0
11 to 13
Cobalt (Co), % 0
2.5 to 3.5
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
77.9 to 84.4
Manganese (Mn), % 0
0 to 0.6
Molybdenum (Mo), % 0
0.7 to 1.2
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 to 0.6
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 92.5 to 95.5
0
Vanadium (V), % 2.0 to 3.0
0 to 1.0
Residuals, % 0 to 0.4
0