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Grade 1 Titanium vs. Grade 5 Titanium

Both grade 1 titanium and grade 5 titanium are titanium alloys. They have 90% of their average alloy composition in common. There are 31 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 grade 1 titanium and the bottom bar is grade 5 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 28
8.6 to 11
Fatigue Strength, MPa 170
530 to 630
Poisson's Ratio 0.32
0.32
Reduction in Area, % 36
21 to 25
Shear Modulus, GPa 39
40
Shear Strength, MPa 200
600 to 710
Tensile Strength: Ultimate (UTS), MPa 310
1000 to 1190
Tensile Strength: Yield (Proof), MPa 220
910 to 1110

Thermal Properties

Latent Heat of Fusion, J/g 420
410
Maximum Temperature: Mechanical, °C 320
330
Melting Completion (Liquidus), °C 1660
1610
Melting Onset (Solidus), °C 1610
1650
Specific Heat Capacity, J/kg-K 540
560
Thermal Conductivity, W/m-K 20
6.8
Thermal Expansion, µm/m-K 8.8
8.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 37
36
Density, g/cm3 4.5
4.4
Embodied Carbon, kg CO2/kg material 31
38
Embodied Energy, MJ/kg 510
610
Embodied Water, L/kg 110
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
100 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 230
3980 to 5880
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
35
Strength to Weight: Axial, points 19
62 to 75
Strength to Weight: Bending, points 23
50 to 56
Thermal Diffusivity, m2/s 8.2
2.7
Thermal Shock Resistance, points 24
76 to 91

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0 to 0.080
0 to 0.080
Hydrogen (H), % 0 to 0.015
0 to 0.015
Iron (Fe), % 0 to 0.2
0 to 0.4
Nitrogen (N), % 0 to 0.030
0 to 0.050
Oxygen (O), % 0 to 0.18
0 to 0.2
Titanium (Ti), % 99.095 to 100
87.4 to 91
Vanadium (V), % 0
3.5 to 4.5
Yttrium (Y), % 0
0 to 0.0050
Residuals, % 0 to 0.4
0 to 0.4