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EN 1.7177 Steel vs. Class 2 Tungsten

EN 1.7177 steel belongs to the iron alloys classification, while class 2 tungsten belongs to the otherwise unclassified metals. 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 EN 1.7177 steel and the bottom bar is class 2 tungsten.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
260
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
100
Tensile Strength: Ultimate (UTS), MPa 660 to 1990
860

Thermal Properties

Latent Heat of Fusion, J/g 250
160
Specific Heat Capacity, J/kg-K 470
120
Thermal Conductivity, W/m-K 47
20
Thermal Expansion, µm/m-K 13
4.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
13
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
7.8

Otherwise Unclassified Properties

Density, g/cm3 7.8
15
Embodied Carbon, kg CO2/kg material 1.4
23
Embodied Energy, MJ/kg 19
350
Embodied Water, L/kg 49
140

Common Calculations

Stiffness to Weight: Axial, points 13
9.6
Stiffness to Weight: Bending, points 24
14
Strength to Weight: Axial, points 23 to 71
16
Strength to Weight: Bending, points 21 to 45
13
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 19 to 59
52

Alloy Composition

Carbon (C), % 0.55 to 0.65
0
Chromium (Cr), % 0.6 to 0.9
0
Iron (Fe), % 97 to 98.2
0
Manganese (Mn), % 0.7 to 1.0
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.025
0
Tungsten (W), % 0
92.5
Residuals, % 0
7.5