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Class 2 Tungsten vs. EN 1.4945 Stainless Steel

Class 2 tungsten belongs to the otherwise unclassified metals classification, while EN 1.4945 stainless steel belongs to the iron alloys. There are 24 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 class 2 tungsten and the bottom bar is EN 1.4945 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 260
200
Elongation at Break, % 5.7
19 to 34
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 100
77
Tensile Strength: Ultimate (UTS), MPa 860
640 to 740
Tensile Strength: Yield (Proof), MPa 580
290 to 550

Thermal Properties

Latent Heat of Fusion, J/g 160
290
Specific Heat Capacity, J/kg-K 120
470
Thermal Conductivity, W/m-K 20
14
Thermal Expansion, µm/m-K 4.6
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 7.8
3.2

Otherwise Unclassified Properties

Density, g/cm3 15
8.1
Embodied Carbon, kg CO2/kg material 23
5.0
Embodied Energy, MJ/kg 350
73
Embodied Water, L/kg 140
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44
130 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 640
210 to 760
Stiffness to Weight: Axial, points 9.6
14
Stiffness to Weight: Bending, points 14
24
Strength to Weight: Axial, points 16
22 to 25
Strength to Weight: Bending, points 13
20 to 22
Thermal Diffusivity, mm2/s 11
3.7
Thermal Shock Resistance, points 52
14 to 16

Alloy Composition

Carbon (C), % 0
0.040 to 0.1
Chromium (Cr), % 0
15.5 to 17.5
Iron (Fe), % 0
57.9 to 65.7
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0
15.5 to 17.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0
0.060 to 0.14
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0.3 to 0.6
Sulfur (S), % 0
0 to 0.015
Tungsten (W), % 92.5
2.5 to 3.5
Residuals, % 7.5
0