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Grade 27 Titanium vs. R04295 Alloy

Grade 27 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 (13, in this case) are not shown.

For each property being compared, the top bar is grade 27 titanium and the bottom bar is R04295 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 27
22
Poisson's Ratio 0.32
0.38
Shear Modulus, GPa 41
37
Tensile Strength: Ultimate (UTS), MPa 270
410
Tensile Strength: Yield (Proof), MPa 230
300

Thermal Properties

Latent Heat of Fusion, J/g 420
300
Specific Heat Capacity, J/kg-K 540
260
Thermal Expansion, µm/m-K 8.7
7.2

Otherwise Unclassified Properties

Density, g/cm3 4.5
9.0
Embodied Water, L/kg 320
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
84
Resilience: Unit (Modulus of Resilience), kJ/m3 240
430
Stiffness to Weight: Axial, points 13
6.3
Stiffness to Weight: Bending, points 35
17
Strength to Weight: Axial, points 17
13
Strength to Weight: Bending, points 21
14
Thermal Shock Resistance, points 21
40

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.015
Hafnium (Hf), % 0
9.0 to 11
Hydrogen (H), % 0 to 0.015
0 to 0.0015
Iron (Fe), % 0 to 0.2
0
Niobium (Nb), % 0
85.9 to 90.3
Nitrogen (N), % 0 to 0.030
0 to 0.010
Oxygen (O), % 0 to 0.18
0 to 0.025
Ruthenium (Ru), % 0.080 to 0.14
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 99 to 99.92
0.7 to 1.3
Tungsten (W), % 0
0 to 0.5
Zirconium (Zr), % 0
0 to 0.7
Residuals, % 0 to 0.4
0