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Class 4 Tungsten vs. R04295 Alloy

Both class 4 tungsten and R04295 alloy are otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is class 4 tungsten and the bottom bar is R04295 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 270
100
Elongation at Break, % 2.3
22
Poisson's Ratio 0.28
0.38
Shear Modulus, GPa 110
37
Tensile Strength: Ultimate (UTS), MPa 790
410
Tensile Strength: Yield (Proof), MPa 580
300

Thermal Properties

Latent Heat of Fusion, J/g 170
300
Specific Heat Capacity, J/kg-K 130
260
Thermal Expansion, µm/m-K 4.5
7.2

Otherwise Unclassified Properties

Density, g/cm3 16
9.0
Embodied Water, L/kg 150
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16
84
Resilience: Unit (Modulus of Resilience), kJ/m3 620
430
Stiffness to Weight: Axial, points 9.6
6.3
Stiffness to Weight: Bending, points 14
17
Strength to Weight: Axial, points 14
13
Strength to Weight: Bending, points 12
14
Thermal Shock Resistance, points 46
40

Alloy Composition


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Carbon (C), % 0
0 to 0.015
Hafnium (Hf), % 0
9.0 to 11
Hydrogen (H), % 0
0 to 0.0015
Niobium (Nb), % 0
85.9 to 90.3
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.025
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
0.7 to 1.3
Tungsten (W), % 97
0 to 0.5
Zirconium (Zr), % 0
0 to 0.7
Residuals, % 3.0
0