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Class 1 Tungsten vs. S20910 Stainless Steel

Class 1 tungsten belongs to the otherwise unclassified metals classification, while S20910 stainless steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is class 1 tungsten and the bottom bar is S20910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 250
200
Elongation at Break, % 5.7
14 to 39
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 98
79
Tensile Strength: Ultimate (UTS), MPa 860
780 to 940
Tensile Strength: Yield (Proof), MPa 580
430 to 810

Thermal Properties

Latent Heat of Fusion, J/g 160
300
Specific Heat Capacity, J/kg-K 120
480
Thermal Conductivity, W/m-K 21
13
Thermal Expansion, µm/m-K 5.1
16

Otherwise Unclassified Properties

Density, g/cm3 15
7.8
Embodied Carbon, kg CO2/kg material 22
4.8
Embodied Energy, MJ/kg 340
68
Embodied Water, L/kg 140
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44
120 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 660
460 to 1640
Stiffness to Weight: Axial, points 9.6
14
Stiffness to Weight: Bending, points 14
25
Strength to Weight: Axial, points 16
28 to 33
Strength to Weight: Bending, points 14
24 to 27
Thermal Diffusivity, mm2/s 12
3.6
Thermal Shock Resistance, points 48
17 to 21

Alloy Composition

Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
20.5 to 23.5
Iron (Fe), % 0
52.1 to 62.1
Manganese (Mn), % 0
4.0 to 6.0
Molybdenum (Mo), % 0
1.5 to 3.0
Nickel (Ni), % 0
11.5 to 13.5
Niobium (Nb), % 0
0.1 to 0.3
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 90
0
Vanadium (V), % 0
0.1 to 0.3
Residuals, % 10
0