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Class 4 Tungsten vs. R05255 Alloy

Both class 4 tungsten and R05255 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.

For each property being compared, the top bar is class 4 tungsten and the bottom bar is R05255 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 270
190
Elongation at Break, % 2.3
20
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 110
70
Tensile Strength: Ultimate (UTS), MPa 790
540
Tensile Strength: Yield (Proof), MPa 580
450

Thermal Properties

Latent Heat of Fusion, J/g 170
140
Specific Heat Capacity, J/kg-K 130
140
Thermal Conductivity, W/m-K 30
59
Thermal Expansion, µm/m-K 4.5
6.6

Otherwise Unclassified Properties

Density, g/cm3 16
17
Embodied Water, L/kg 150
630

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16
100
Resilience: Unit (Modulus of Resilience), kJ/m3 620
530
Stiffness to Weight: Axial, points 9.6
6.3
Stiffness to Weight: Bending, points 14
11
Strength to Weight: Axial, points 14
9.1
Strength to Weight: Bending, points 12
8.9
Thermal Diffusivity, mm2/s 15
25
Thermal Shock Resistance, points 46
31

Alloy Composition


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Carbon (C), % 0
0 to 0.010
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0
0 to 0.010
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 0
0 to 0.010
Niobium (Nb), % 0
0 to 0.5
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.0050
Tantalum (Ta), % 0
95.9 to 98
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 97
2.0 to 3.5
Residuals, % 3.0
0