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EN 1.4439 Stainless Steel vs. Class 1 Tungsten

EN 1.4439 stainless steel belongs to the iron alloys classification, while class 1 tungsten belongs to the otherwise unclassified metals. 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 EN 1.4439 stainless steel and the bottom bar is class 1 tungsten.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
250
Elongation at Break, % 40
5.7
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
98
Tensile Strength: Ultimate (UTS), MPa 680
860
Tensile Strength: Yield (Proof), MPa 310
580

Thermal Properties

Latent Heat of Fusion, J/g 290
160
Specific Heat Capacity, J/kg-K 470
120
Thermal Conductivity, W/m-K 14
21
Thermal Expansion, µm/m-K 16
5.1

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
12
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
7.4

Otherwise Unclassified Properties

Density, g/cm3 7.9
15
Embodied Carbon, kg CO2/kg material 4.5
22
Embodied Energy, MJ/kg 61
340
Embodied Water, L/kg 160
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
44
Resilience: Unit (Modulus of Resilience), kJ/m3 240
660
Stiffness to Weight: Axial, points 14
9.6
Stiffness to Weight: Bending, points 25
14
Strength to Weight: Axial, points 24
16
Strength to Weight: Bending, points 22
14
Thermal Diffusivity, mm2/s 3.8
12
Thermal Shock Resistance, points 15
48

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 16.5 to 18.5
0
Iron (Fe), % 58.7 to 66.9
0
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 12.5 to 14.5
0
Nitrogen (N), % 0.12 to 0.22
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0
Tungsten (W), % 0
90
Residuals, % 0
10