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Class 1 Tungsten vs. EN 1.3518 Steel

Class 1 tungsten belongs to the otherwise unclassified metals classification, while EN 1.3518 steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is class 1 tungsten and the bottom bar is EN 1.3518 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 250
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 98
72
Tensile Strength: Ultimate (UTS), MPa 860
630

Thermal Properties

Latent Heat of Fusion, J/g 160
260
Specific Heat Capacity, J/kg-K 120
480
Thermal Conductivity, W/m-K 21
43
Thermal Expansion, µm/m-K 5.1
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 7.4
8.5

Otherwise Unclassified Properties

Density, g/cm3 15
7.8
Embodied Carbon, kg CO2/kg material 22
1.5
Embodied Energy, MJ/kg 340
20
Embodied Water, L/kg 140
51

Common Calculations

Stiffness to Weight: Axial, points 9.6
13
Stiffness to Weight: Bending, points 14
25
Strength to Weight: Axial, points 16
23
Strength to Weight: Bending, points 14
21
Thermal Diffusivity, mm2/s 12
12
Thermal Shock Resistance, points 48
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Carbon (C), % 0
0.93 to 1.1
Chromium (Cr), % 0
0.9 to 1.2
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 0
96.3 to 97.8
Manganese (Mn), % 0
0.9 to 1.2
Molybdenum (Mo), % 0
0 to 0.1
Oxygen (O), % 0
0 to 0.0015
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0.45 to 0.75
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 90
0
Residuals, % 10
0