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Class 4 Tungsten vs. 50Cr-50Ni-Cb Alloy

Both class 4 tungsten and 50Cr-50Ni-Cb alloy are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. There are 20 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is class 4 tungsten and the bottom bar is 50Cr-50Ni-Cb alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 270
210
Elongation at Break, % 2.3
5.6
Poisson's Ratio 0.28
0.26
Shear Modulus, GPa 110
84
Tensile Strength: Ultimate (UTS), MPa 790
620
Tensile Strength: Yield (Proof), MPa 580
390

Thermal Properties

Latent Heat of Fusion, J/g 170
350
Specific Heat Capacity, J/kg-K 130
480
Thermal Expansion, µm/m-K 4.5
15

Otherwise Unclassified Properties

Density, g/cm3 16
8.0
Embodied Carbon, kg CO2/kg material 24
9.2
Embodied Energy, MJ/kg 360
130
Embodied Water, L/kg 150
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16
30
Resilience: Unit (Modulus of Resilience), kJ/m3 620
370
Stiffness to Weight: Axial, points 9.6
15
Stiffness to Weight: Bending, points 14
25
Strength to Weight: Axial, points 14
21
Strength to Weight: Bending, points 12
20
Thermal Shock Resistance, points 46
14

Alloy Composition


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Aluminum (Al), % 0
0 to 0.25
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
47 to 52
Iron (Fe), % 0
0 to 1.0
Manganese (Mn), % 0
0 to 0.3
Nickel (Ni), % 0
43.3 to 51.6
Niobium (Nb), % 0
1.4 to 1.7
Nitrogen (N), % 0
0 to 0.16
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0
0 to 0.5
Tungsten (W), % 97
0
Residuals, % 3.0
0