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Class 1 Tungsten vs. EN 1.5538 Steel

Class 1 tungsten belongs to the otherwise unclassified metals classification, while EN 1.5538 steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is class 1 tungsten and the bottom bar is EN 1.5538 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
73
Tensile Strength: Ultimate (UTS), MPa 860
530 to 1810

Thermal Properties

Latent Heat of Fusion, J/g 160
250
Specific Heat Capacity, J/kg-K 120
470
Thermal Conductivity, W/m-K 21
51
Thermal Expansion, µm/m-K 5.1
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 7.4
8.3

Otherwise Unclassified Properties

Density, g/cm3 15
7.8
Embodied Carbon, kg CO2/kg material 22
1.4
Embodied Energy, MJ/kg 340
19
Embodied Water, L/kg 140
48

Common Calculations

Stiffness to Weight: Axial, points 9.6
13
Stiffness to Weight: Bending, points 14
24
Strength to Weight: Axial, points 16
19 to 64
Strength to Weight: Bending, points 14
19 to 42
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 48
16 to 53

Alloy Composition

Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0
0.35 to 0.4
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0
97.2 to 98.5
Manganese (Mn), % 0
1.2 to 1.5
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.3
Sulfur (S), % 0
0 to 0.025
Tungsten (W), % 90
0
Residuals, % 10
0