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Class 1 Tungsten vs. EN 1.6957 Steel

Class 1 tungsten belongs to the otherwise unclassified metals classification, while EN 1.6957 steel belongs to the iron alloys. There are 24 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 1.6957 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 250
190
Elongation at Break, % 5.7
18
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 98
73
Tensile Strength: Ultimate (UTS), MPa 860
930
Tensile Strength: Yield (Proof), MPa 580
780

Thermal Properties

Latent Heat of Fusion, J/g 160
250
Specific Heat Capacity, J/kg-K 120
470
Thermal Conductivity, W/m-K 21
47
Thermal Expansion, µm/m-K 5.1
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 7.4
9.1

Otherwise Unclassified Properties

Density, g/cm3 15
7.9
Embodied Carbon, kg CO2/kg material 22
2.1
Embodied Energy, MJ/kg 340
29
Embodied Water, L/kg 140
60

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44
160
Resilience: Unit (Modulus of Resilience), kJ/m3 660
1630
Stiffness to Weight: Axial, points 9.6
13
Stiffness to Weight: Bending, points 14
24
Strength to Weight: Axial, points 16
33
Strength to Weight: Bending, points 14
27
Thermal Diffusivity, mm2/s 12
13
Thermal Shock Resistance, points 48
27

Alloy Composition

Carbon (C), % 0
0.22 to 0.32
Chromium (Cr), % 0
1.2 to 1.8
Iron (Fe), % 0
92.7 to 94.7
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0
0.25 to 0.45
Nickel (Ni), % 0
3.4 to 4.0
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0 to 0.15
Sulfur (S), % 0
0 to 0.0070
Tungsten (W), % 90
0
Vanadium (V), % 0
0.050 to 0.15
Residuals, % 10
0