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Grade 20 Titanium vs. R04295 Alloy

Grade 20 titanium belongs to the titanium alloys classification, while R04295 alloy belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade 20 titanium and the bottom bar is R04295 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
100
Elongation at Break, % 5.7 to 17
22
Poisson's Ratio 0.32
0.38
Shear Modulus, GPa 47
37
Tensile Strength: Ultimate (UTS), MPa 900 to 1270
410
Tensile Strength: Yield (Proof), MPa 850 to 1190
300

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Specific Heat Capacity, J/kg-K 520
260
Thermal Expansion, µm/m-K 9.6
7.2

Otherwise Unclassified Properties

Density, g/cm3 5.0
9.0
Embodied Water, L/kg 350
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
84
Resilience: Unit (Modulus of Resilience), kJ/m3 2940 to 5760
430
Stiffness to Weight: Axial, points 14
6.3
Stiffness to Weight: Bending, points 33
17
Strength to Weight: Axial, points 50 to 70
13
Strength to Weight: Bending, points 41 to 52
14
Thermal Shock Resistance, points 55 to 77
40

Alloy Composition

Aluminum (Al), % 3.0 to 4.0
0
Carbon (C), % 0 to 0.050
0 to 0.015
Chromium (Cr), % 5.5 to 6.5
0
Hafnium (Hf), % 0
9.0 to 11
Hydrogen (H), % 0 to 0.020
0 to 0.0015
Iron (Fe), % 0 to 0.3
0
Molybdenum (Mo), % 3.5 to 4.5
0
Niobium (Nb), % 0
85.9 to 90.3
Nitrogen (N), % 0 to 0.030
0 to 0.010
Oxygen (O), % 0 to 0.12
0 to 0.025
Palladium (Pd), % 0.040 to 0.080
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 71 to 77
0.7 to 1.3
Tungsten (W), % 0
0 to 0.5
Vanadium (V), % 7.5 to 8.5
0
Zirconium (Zr), % 3.5 to 4.5
0 to 0.7
Residuals, % 0 to 0.4
0