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Class 4 Tungsten vs. R60901 Alloy

Both class 4 tungsten and R60901 alloy are otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is class 4 tungsten and the bottom bar is R60901 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 270
98
Elongation at Break, % 2.3
17 to 22
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 110
37
Tensile Strength: Ultimate (UTS), MPa 790
500 to 580
Tensile Strength: Yield (Proof), MPa 580
350 to 390

Thermal Properties

Latent Heat of Fusion, J/g 170
250
Specific Heat Capacity, J/kg-K 130
270
Thermal Conductivity, W/m-K 30
17
Thermal Expansion, µm/m-K 4.5
6.3

Otherwise Unclassified Properties

Density, g/cm3 16
6.6
Embodied Water, L/kg 150
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16
88 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 620
640 to 760
Stiffness to Weight: Axial, points 9.6
8.3
Stiffness to Weight: Bending, points 14
23
Strength to Weight: Axial, points 14
21 to 25
Strength to Weight: Bending, points 12
21 to 24
Thermal Diffusivity, mm2/s 15
9.7
Thermal Shock Resistance, points 46
58 to 67

Alloy Composition


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Niobium (Nb), % 0
2.4 to 2.8
Tungsten (W), % 97
0
Zirconium (Zr), % 0
96.8 to 97.5
Residuals, % 3.0
0 to 0.29