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Grade 19 Titanium vs. Grade 4 Titanium

Both grade 19 titanium and grade 4 titanium are titanium alloys. They have 75% of their average alloy composition in common. 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 19 titanium and the bottom bar is grade 4 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 5.6 to 17
17
Fatigue Strength, MPa 550 to 620
340
Poisson's Ratio 0.32
0.32
Reduction in Area, % 22
28
Shear Modulus, GPa 47
41
Shear Strength, MPa 550 to 750
390
Tensile Strength: Ultimate (UTS), MPa 890 to 1300
640
Tensile Strength: Yield (Proof), MPa 870 to 1170
530

Thermal Properties

Latent Heat of Fusion, J/g 400
420
Maximum Temperature: Mechanical, °C 370
320
Melting Completion (Liquidus), °C 1660
1660
Melting Onset (Solidus), °C 1600
1610
Specific Heat Capacity, J/kg-K 520
540
Thermal Conductivity, W/m-K 6.2
19
Thermal Expansion, µm/m-K 9.1
9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 45
37
Density, g/cm3 5.0
4.5
Embodied Carbon, kg CO2/kg material 47
31
Embodied Energy, MJ/kg 760
500
Embodied Water, L/kg 230
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70 to 150
100
Resilience: Unit (Modulus of Resilience), kJ/m3 3040 to 5530
1330
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 33
35
Strength to Weight: Axial, points 49 to 72
40
Strength to Weight: Bending, points 41 to 53
37
Thermal Diffusivity, mm2/s 2.4
7.6
Thermal Shock Resistance, points 57 to 83
46

Alloy Composition

Aluminum (Al), % 3.0 to 4.0
0
Carbon (C), % 0 to 0.050
0 to 0.080
Chromium (Cr), % 5.5 to 6.5
0
Hydrogen (H), % 0 to 0.020
0 to 0.015
Iron (Fe), % 0 to 0.3
0 to 0.5
Molybdenum (Mo), % 3.5 to 4.5
0
Nitrogen (N), % 0 to 0.030
0 to 0.050
Oxygen (O), % 0 to 0.12
0 to 0.4
Titanium (Ti), % 71.1 to 77
98.6 to 100
Vanadium (V), % 7.5 to 8.5
0
Zirconium (Zr), % 3.5 to 4.5
0
Residuals, % 0
0 to 0.4