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EN 1.4421 Stainless Steel vs. Class 1 Tungsten

EN 1.4421 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 (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4421 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, % 11 to 17
5.7
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
98
Tensile Strength: Ultimate (UTS), MPa 880 to 1100
860
Tensile Strength: Yield (Proof), MPa 620 to 950
580

Thermal Properties

Latent Heat of Fusion, J/g 280
160
Specific Heat Capacity, J/kg-K 480
120
Thermal Conductivity, W/m-K 16
21
Thermal Expansion, µm/m-K 10
5.1

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
12
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
7.4

Otherwise Unclassified Properties

Density, g/cm3 7.8
15
Embodied Carbon, kg CO2/kg material 2.6
22
Embodied Energy, MJ/kg 36
340
Embodied Water, L/kg 130
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 140
44
Resilience: Unit (Modulus of Resilience), kJ/m3 960 to 2270
660
Stiffness to Weight: Axial, points 14
9.6
Stiffness to Weight: Bending, points 25
14
Strength to Weight: Axial, points 31 to 39
16
Strength to Weight: Bending, points 26 to 30
14
Thermal Diffusivity, mm2/s 4.4
12
Thermal Shock Resistance, points 31 to 39
48

Alloy Composition

Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 15.5 to 17.5
0
Iron (Fe), % 74.4 to 80.5
0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0 to 0.7
0
Nickel (Ni), % 4.0 to 5.5
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.8
0
Sulfur (S), % 0 to 0.020
0
Tungsten (W), % 0
90
Residuals, % 0
10