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Grade Ti-Pd18 Titanium vs. SAE-AISI 1552 Steel

Grade Ti-Pd18 titanium belongs to the titanium alloys classification, while SAE-AISI 1552 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 1552 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 320
220 to 250
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 17
11 to 14
Fatigue Strength, MPa 350
290 to 400
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
72
Tensile Strength: Ultimate (UTS), MPa 710
760 to 840
Tensile Strength: Yield (Proof), MPa 540
460 to 650

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 330
400
Melting Completion (Liquidus), °C 1640
1460
Melting Onset (Solidus), °C 1590
1420
Specific Heat Capacity, J/kg-K 550
470
Thermal Conductivity, W/m-K 8.2
51
Thermal Expansion, µm/m-K 9.1
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
11
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
12

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
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
81 to 98
Resilience: Unit (Modulus of Resilience), kJ/m3 1380
560 to 1130
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 44
27 to 30
Strength to Weight: Bending, points 39
24 to 25
Thermal Diffusivity, mm2/s 3.3
14
Thermal Shock Resistance, points 52
26 to 29

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Carbon (C), % 0 to 0.1
0.47 to 0.55
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
97.9 to 98.3
Manganese (Mn), % 0
1.2 to 1.5
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