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EN AC-45400 Aluminum vs. Grade 37 Titanium

EN AC-45400 aluminum belongs to the aluminum alloys classification, while grade 37 titanium belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN AC-45400 aluminum and the bottom bar is grade 37 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
110
Elongation at Break, % 6.7
22
Fatigue Strength, MPa 55
170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
40
Tensile Strength: Ultimate (UTS), MPa 260
390
Tensile Strength: Yield (Proof), MPa 130
250

Thermal Properties

Latent Heat of Fusion, J/g 470
420
Maximum Temperature: Mechanical, °C 170
310
Melting Completion (Liquidus), °C 630
1650
Melting Onset (Solidus), °C 560
1600
Specific Heat Capacity, J/kg-K 880
550
Thermal Conductivity, W/m-K 140
21
Thermal Expansion, µm/m-K 22
8.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 95
6.8

Otherwise Unclassified Properties

Base Metal Price, % relative 10
36
Density, g/cm3 2.8
4.5
Embodied Carbon, kg CO2/kg material 7.8
31
Embodied Energy, MJ/kg 150
500
Embodied Water, L/kg 1100
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14
76
Resilience: Unit (Modulus of Resilience), kJ/m3 110
280
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
35
Strength to Weight: Axial, points 25
24
Strength to Weight: Bending, points 32
26
Thermal Diffusivity, mm2/s 54
8.4
Thermal Shock Resistance, points 12
29

Alloy Composition

Aluminum (Al), % 88.4 to 92.9
1.0 to 2.0
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 2.6 to 3.6
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.6
0 to 0.3
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.55
0
Nickel (Ni), % 0 to 0.1
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Silicon (Si), % 4.5 to 6.0
0
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0 to 0.25
96.9 to 99
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0
0 to 0.4