R04295 Alloy vs. Titanium 6-2-4-2

R04295 alloy belongs to the otherwise unclassified metals classification, while titanium 6-2-4-2 belongs to the titanium alloys. 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 R04295 alloy and the bottom bar is titanium 6-2-4-2.

UNS R04295 Niobium-Hafnium Alloy Titanium 6-2-4-2 (3.7145, R54620)

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		100
Elastic (Young's, Tensile) Modulus, GPa		110

Elongation at Break, %		22
Elongation at Break, %		8.6

Poisson's Ratio		0.38
Poisson's Ratio		0.32

Shear Modulus, GPa		37
Shear Modulus, GPa		40

Tensile Strength: Ultimate (UTS), MPa		410
Tensile Strength: Ultimate (UTS), MPa		950

Tensile Strength: Yield (Proof), MPa		300
Tensile Strength: Yield (Proof), MPa		880

Thermal Properties

Latent Heat of Fusion, J/g		300
Latent Heat of Fusion, J/g		400

Specific Heat Capacity, J/kg-K		260
Specific Heat Capacity, J/kg-K		540

Thermal Expansion, µm/m-K		7.2
Thermal Expansion, µm/m-K		9.5

Otherwise Unclassified Properties

Density, g/cm³		9.0
Density, g/cm³		4.6

Embodied Water, L/kg		950
Embodied Water, L/kg		210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		84
Resilience: Ultimate (Unit Rupture Work), MJ/m³		79

Resilience: Unit (Modulus of Resilience), kJ/m³		430
Resilience: Unit (Modulus of Resilience), kJ/m³		3640

Stiffness to Weight: Axial, points		6.3
Stiffness to Weight: Axial, points		13

Stiffness to Weight: Bending, points		17
Stiffness to Weight: Bending, points		34

Strength to Weight: Axial, points		13
Strength to Weight: Axial, points		57

Strength to Weight: Bending, points		14
Strength to Weight: Bending, points		46

Thermal Shock Resistance, points		40
Thermal Shock Resistance, points		67

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		5.5 to 6.5

Carbon (C), %		0 to 0.015
Carbon (C), %		0 to 0.050

Hafnium (Hf), %		9.0 to 11
Hafnium (Hf), %		0

Hydrogen (H), %		0 to 0.0015
Hydrogen (H), %		0 to 0.015

Iron (Fe), %		0
Iron (Fe), %		0 to 0.25

Molybdenum (Mo), %		0
Molybdenum (Mo), %		1.8 to 2.2

Niobium (Nb), %		85.9 to 90.3
Niobium (Nb), %		0

Nitrogen (N), %		0 to 0.010
Nitrogen (N), %		0 to 0.050

Oxygen (O), %		0 to 0.025
Oxygen (O), %		0 to 0.15

Silicon (Si), %		0
Silicon (Si), %		0.060 to 0.12

Tantalum (Ta), %		0 to 0.5
Tantalum (Ta), %		0

Tin (Sn), %		0
Tin (Sn), %		1.8 to 2.2

Titanium (Ti), %		0.7 to 1.3
Titanium (Ti), %		83.7 to 87.2

Tungsten (W), %		0 to 0.5
Tungsten (W), %		0

Zirconium (Zr), %		0 to 0.7
Zirconium (Zr), %		3.6 to 4.4

Residuals, %		0
Residuals, %		0 to 0.4