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Grade Ti-Pd7B Titanium vs. SAE-AISI T1 Steel

Grade Ti-Pd7B titanium belongs to the titanium alloys classification, while SAE-AISI T1 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. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is grade Ti-Pd7B titanium and the bottom bar is SAE-AISI T1 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
80
Tensile Strength: Ultimate (UTS), MPa 390
770 to 2130

Thermal Properties

Latent Heat of Fusion, J/g 420
240
Melting Completion (Liquidus), °C 1660
1810
Melting Onset (Solidus), °C 1610
1750
Specific Heat Capacity, J/kg-K 540
410
Thermal Conductivity, W/m-K 22
20
Thermal Expansion, µm/m-K 8.7
12

Otherwise Unclassified Properties

Density, g/cm3 4.5
9.3
Embodied Carbon, kg CO2/kg material 49
8.2
Embodied Energy, MJ/kg 840
130
Embodied Water, L/kg 520
90

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 35
21
Strength to Weight: Axial, points 24
23 to 64
Strength to Weight: Bending, points 26
20 to 40
Thermal Diffusivity, mm2/s 8.9
5.2
Thermal Shock Resistance, points 30
23 to 64

Alloy Composition

Carbon (C), % 0 to 0.1
0.65 to 0.8
Chromium (Cr), % 0
3.8 to 4.5
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
73.2 to 77.2
Manganese (Mn), % 0
0.1 to 0.4
Nickel (Ni), % 0 to 0.050
0 to 0.3
Oxygen (O), % 0 to 0.4
0
Palladium (Pd), % 0.12 to 0.3
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), % 98.8 to 99.9
0
Tungsten (W), % 0
17.3 to 18.8
Vanadium (V), % 0
0.9 to 1.3
Residuals, % 0 to 0.4
0