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Type 1 Niobium vs. R56401 Titanium

Type 1 niobium belongs to the otherwise unclassified metals classification, while R56401 titanium belongs to the titanium alloys. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is Type 1 niobium and the bottom bar is R56401 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 29
9.1
Poisson's Ratio 0.4
0.32
Shear Modulus, GPa 38
40
Tensile Strength: Ultimate (UTS), MPa 140
940
Tensile Strength: Yield (Proof), MPa 82
850

Thermal Properties

Latent Heat of Fusion, J/g 320
410
Specific Heat Capacity, J/kg-K 270
560
Thermal Conductivity, W/m-K 52
7.1
Thermal Expansion, µm/m-K 7.3
9.6

Otherwise Unclassified Properties

Density, g/cm3 8.6
4.5
Embodied Water, L/kg 160
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35
83
Resilience: Unit (Modulus of Resilience), kJ/m3 32
3440
Stiffness to Weight: Axial, points 6.8
13
Stiffness to Weight: Bending, points 18
35
Strength to Weight: Axial, points 4.6
59
Strength to Weight: Bending, points 7.1
48
Thermal Diffusivity, mm2/s 23
2.9
Thermal Shock Resistance, points 13
67

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0 to 0.010
0 to 0.080
Hafnium (Hf), % 0 to 0.020
0
Hydrogen (H), % 0 to 0.0015
0 to 0.012
Iron (Fe), % 0 to 0.0050
0 to 0.25
Molybdenum (Mo), % 0 to 0.010
0
Nickel (Ni), % 0 to 0.0050
0
Niobium (Nb), % 99.7 to 100
0
Nitrogen (N), % 0 to 0.010
0 to 0.050
Oxygen (O), % 0 to 0.015
0 to 0.13
Silicon (Si), % 0 to 0.0050
0
Tantalum (Ta), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.020
88.5 to 91
Tungsten (W), % 0 to 0.030
0
Vanadium (V), % 0
3.5 to 4.5
Zirconium (Zr), % 0 to 0.020
0