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Class 3 Tungsten vs. EN 1.4429 Stainless Steel

Class 3 tungsten belongs to the otherwise unclassified metals classification, while EN 1.4429 stainless 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 3 tungsten and the bottom bar is EN 1.4429 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 270
200
Elongation at Break, % 3.4
40
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 100
78
Tensile Strength: Ultimate (UTS), MPa 830
690
Tensile Strength: Yield (Proof), MPa 580
320

Thermal Properties

Latent Heat of Fusion, J/g 170
290
Specific Heat Capacity, J/kg-K 120
470
Thermal Conductivity, W/m-K 30
15
Thermal Expansion, µm/m-K 4.5
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.6

Otherwise Unclassified Properties

Density, g/cm3 15
7.9
Embodied Carbon, kg CO2/kg material 23
4.0
Embodied Energy, MJ/kg 360
55
Embodied Water, L/kg 150
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25
230
Resilience: Unit (Modulus of Resilience), kJ/m3 630
250
Stiffness to Weight: Axial, points 9.6
14
Stiffness to Weight: Bending, points 14
25
Strength to Weight: Axial, points 15
24
Strength to Weight: Bending, points 13
22
Thermal Diffusivity, mm2/s 15
4.0
Thermal Shock Resistance, points 49
15

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
16.5 to 18.5
Iron (Fe), % 0
61.2 to 69.9
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 0
11 to 14
Nitrogen (N), % 0
0.12 to 0.22
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Tungsten (W), % 95
0
Residuals, % 5.0
0