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EN AC-42100 Aluminum vs. Grade Ti-Pd18 Titanium

EN AC-42100 aluminum belongs to the aluminum alloys classification, while grade Ti-Pd18 titanium belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN AC-42100 aluminum and the bottom bar is grade Ti-Pd18 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 91
320
Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 3.4 to 9.0
17
Fatigue Strength, MPa 76 to 82
350
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 280 to 290
710
Tensile Strength: Yield (Proof), MPa 210 to 230
540

Thermal Properties

Latent Heat of Fusion, J/g 500
410
Maximum Temperature: Mechanical, °C 170
330
Melting Completion (Liquidus), °C 610
1640
Melting Onset (Solidus), °C 600
1590
Specific Heat Capacity, J/kg-K 910
550
Thermal Conductivity, W/m-K 150
8.2
Thermal Expansion, µm/m-K 22
9.1

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.7

Otherwise Unclassified Properties

Density, g/cm3 2.6
4.5
Embodied Carbon, kg CO2/kg material 8.0
41
Embodied Energy, MJ/kg 150
670
Embodied Water, L/kg 1110
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1 to 23
110
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 370
1380
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 53
35
Strength to Weight: Axial, points 30 to 31
44
Strength to Weight: Bending, points 37 to 38
39
Thermal Diffusivity, mm2/s 66
3.3
Thermal Shock Resistance, points 13
52

Alloy Composition

Aluminum (Al), % 91.3 to 93.3
2.5 to 3.5
Carbon (C), % 0
0 to 0.1
Copper (Cu), % 0 to 0.050
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.19
0 to 0.25
Magnesium (Mg), % 0.25 to 0.45
0
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.15
Palladium (Pd), % 0
0.040 to 0.080
Silicon (Si), % 6.5 to 7.5
0
Titanium (Ti), % 0 to 0.25
92.5 to 95.5
Vanadium (V), % 0
2.0 to 3.0
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0
0 to 0.4