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R04295 Alloy vs. Type 1 Niobium

Both R04295 alloy and Type 1 niobium are otherwise unclassified metals. Both are furnished in the annealed condition. They have 88% of their average alloy composition in common. There are 18 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is R04295 alloy and the bottom bar is Type 1 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 22
29
Poisson's Ratio 0.38
0.4
Shear Modulus, GPa 37
38
Tensile Strength: Ultimate (UTS), MPa 410
140
Tensile Strength: Yield (Proof), MPa 300
82

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Specific Heat Capacity, J/kg-K 260
270
Thermal Expansion, µm/m-K 7.2
7.3

Otherwise Unclassified Properties

Density, g/cm3 9.0
8.6
Embodied Water, L/kg 950
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84
35
Resilience: Unit (Modulus of Resilience), kJ/m3 430
32
Stiffness to Weight: Axial, points 6.3
6.8
Stiffness to Weight: Bending, points 17
18
Strength to Weight: Axial, points 13
4.6
Strength to Weight: Bending, points 14
7.1
Thermal Shock Resistance, points 40
13

Alloy Composition

Carbon (C), % 0 to 0.015
0 to 0.010
Hafnium (Hf), % 9.0 to 11
0 to 0.020
Hydrogen (H), % 0 to 0.0015
0 to 0.0015
Iron (Fe), % 0
0 to 0.0050
Molybdenum (Mo), % 0
0 to 0.010
Nickel (Ni), % 0
0 to 0.0050
Niobium (Nb), % 85.9 to 90.3
99.7 to 100
Nitrogen (N), % 0 to 0.010
0 to 0.010
Oxygen (O), % 0 to 0.025
0 to 0.015
Silicon (Si), % 0
0 to 0.0050
Tantalum (Ta), % 0 to 0.5
0 to 0.1
Titanium (Ti), % 0.7 to 1.3
0 to 0.020
Tungsten (W), % 0 to 0.5
0 to 0.030
Zirconium (Zr), % 0 to 0.7
0 to 0.020