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Grade Ti-Pd18 Titanium vs. SAE-AISI 1090 Steel

Grade Ti-Pd18 titanium belongs to the titanium alloys classification, while SAE-AISI 1090 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 1090 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 320
220 to 280
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 17
11
Fatigue Strength, MPa 350
320 to 380
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
72
Tensile Strength: Ultimate (UTS), MPa 710
790 to 950
Tensile Strength: Yield (Proof), MPa 540
520 to 610

Thermal Properties

Latent Heat of Fusion, J/g 410
240
Maximum Temperature: Mechanical, °C 330
400
Melting Completion (Liquidus), °C 1640
1450
Melting Onset (Solidus), °C 1590
1410
Specific Heat Capacity, J/kg-K 550
470
Thermal Conductivity, W/m-K 8.2
50
Thermal Expansion, µm/m-K 9.1
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.2

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 41
1.4
Embodied Energy, MJ/kg 670
19
Embodied Water, L/kg 270
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
82 to 91
Resilience: Unit (Modulus of Resilience), kJ/m3 1380
730 to 1000
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 44
28 to 34
Strength to Weight: Bending, points 39
24 to 27
Thermal Diffusivity, mm2/s 3.3
13
Thermal Shock Resistance, points 52
25 to 31

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Carbon (C), % 0 to 0.1
0.85 to 1.0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
98 to 98.6
Manganese (Mn), % 0
0.6 to 0.9
Nickel (Ni), % 0 to 0.050
0
Oxygen (O), % 0 to 0.15
0
Palladium (Pd), % 0.040 to 0.080
0
Phosphorus (P), % 0
0 to 0.040
Sulfur (S), % 0
0 to 0.050
Titanium (Ti), % 92.5 to 95.5
0
Vanadium (V), % 2.0 to 3.0
0
Residuals, % 0 to 0.4
0