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Class 1 Tungsten vs. EN 1.4005 Stainless Steel

Class 1 tungsten belongs to the otherwise unclassified metals classification, while EN 1.4005 stainless steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is class 1 tungsten and the bottom bar is EN 1.4005 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 250
190
Elongation at Break, % 5.7
13 to 21
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 98
76
Tensile Strength: Ultimate (UTS), MPa 860
630 to 750
Tensile Strength: Yield (Proof), MPa 580
370 to 500

Thermal Properties

Latent Heat of Fusion, J/g 160
270
Specific Heat Capacity, J/kg-K 120
480
Thermal Conductivity, W/m-K 21
30
Thermal Expansion, µm/m-K 5.1
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 7.4
3.3

Otherwise Unclassified Properties

Density, g/cm3 15
7.7
Embodied Carbon, kg CO2/kg material 22
2.0
Embodied Energy, MJ/kg 340
28
Embodied Water, L/kg 140
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44
90 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 660
350 to 650
Stiffness to Weight: Axial, points 9.6
14
Stiffness to Weight: Bending, points 14
25
Strength to Weight: Axial, points 16
23 to 27
Strength to Weight: Bending, points 14
21 to 24
Thermal Diffusivity, mm2/s 12
8.1
Thermal Shock Resistance, points 48
23 to 27

Alloy Composition

Carbon (C), % 0
0.060 to 0.15
Chromium (Cr), % 0
12 to 14
Iron (Fe), % 0
82.4 to 87.8
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.6
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0.15 to 0.35
Tungsten (W), % 90
0
Residuals, % 10
0