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Class 3 Tungsten vs. EN 1.4558 Stainless Steel

Class 3 tungsten belongs to the otherwise unclassified metals classification, while EN 1.4558 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 3 tungsten and the bottom bar is EN 1.4558 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 270
200
Elongation at Break, % 3.4
39
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 100
77
Tensile Strength: Ultimate (UTS), MPa 830
510
Tensile Strength: Yield (Proof), MPa 580
200

Thermal Properties

Latent Heat of Fusion, J/g 170
300
Specific Heat Capacity, J/kg-K 120
480
Thermal Conductivity, W/m-K 30
12
Thermal Expansion, µm/m-K 4.5
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
1.9

Otherwise Unclassified Properties

Density, g/cm3 15
8.0
Embodied Carbon, kg CO2/kg material 23
5.5
Embodied Energy, MJ/kg 360
77
Embodied Water, L/kg 150
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25
160
Resilience: Unit (Modulus of Resilience), kJ/m3 630
100
Stiffness to Weight: Axial, points 9.6
14
Stiffness to Weight: Bending, points 14
24
Strength to Weight: Axial, points 15
18
Strength to Weight: Bending, points 13
18
Thermal Diffusivity, mm2/s 15
3.1
Thermal Shock Resistance, points 49
12

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.45
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
20 to 23
Iron (Fe), % 0
39.2 to 47.9
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
32 to 35
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.7
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0 to 0.6
Tungsten (W), % 95
0
Residuals, % 5.0
0