MakeItFrom.com
Menu (ESC)

Grade 21 Titanium vs. 295.0 Aluminum

Grade 21 titanium belongs to the titanium alloys classification, while 295.0 aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is grade 21 titanium and the bottom bar is 295.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
71
Elongation at Break, % 9.0 to 17
2.0 to 7.2
Fatigue Strength, MPa 550 to 660
44 to 55
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 51
27
Shear Strength, MPa 550 to 790
180 to 230
Tensile Strength: Ultimate (UTS), MPa 890 to 1340
230 to 280
Tensile Strength: Yield (Proof), MPa 870 to 1170
100 to 220

Thermal Properties

Latent Heat of Fusion, J/g 410
400
Maximum Temperature: Mechanical, °C 310
170
Melting Completion (Liquidus), °C 1740
640
Melting Onset (Solidus), °C 1690
530
Specific Heat Capacity, J/kg-K 500
880
Thermal Conductivity, W/m-K 7.5
140
Thermal Expansion, µm/m-K 7.1
23

Otherwise Unclassified Properties

Base Metal Price, % relative 60
10
Density, g/cm3 5.4
3.0
Embodied Carbon, kg CO2/kg material 32
7.9
Embodied Energy, MJ/kg 490
150
Embodied Water, L/kg 180
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 180
5.2 to 13
Resilience: Unit (Modulus of Resilience), kJ/m3 2760 to 5010
77 to 340
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 32
46
Strength to Weight: Axial, points 46 to 69
21 to 26
Strength to Weight: Bending, points 38 to 50
27 to 32
Thermal Diffusivity, mm2/s 2.8
54
Thermal Shock Resistance, points 66 to 100
9.8 to 12

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
91.4 to 95.3
Carbon (C), % 0 to 0.050
0
Copper (Cu), % 0
4.0 to 5.0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0 to 1.0
Magnesium (Mg), % 0
0 to 0.030
Manganese (Mn), % 0
0 to 0.35
Molybdenum (Mo), % 14 to 16
0
Niobium (Nb), % 2.2 to 3.2
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.17
0
Silicon (Si), % 0.15 to 0.25
0.7 to 1.5
Titanium (Ti), % 76 to 81.2
0 to 0.25
Zinc (Zn), % 0
0 to 0.35
Residuals, % 0 to 0.4
0 to 0.15

Comparable Variants