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Class 3 Tungsten vs. EN 1.4655 Stainless Steel

Class 3 tungsten belongs to the otherwise unclassified metals classification, while EN 1.4655 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 1.4655 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 270
200
Elongation at Break, % 3.4
23 to 25
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 100
78
Tensile Strength: Ultimate (UTS), MPa 830
720 to 730
Tensile Strength: Yield (Proof), MPa 580
450 to 480

Thermal Properties

Latent Heat of Fusion, J/g 170
290
Specific Heat Capacity, J/kg-K 120
480
Thermal Conductivity, W/m-K 30
15
Thermal Expansion, µm/m-K 4.5
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.5

Otherwise Unclassified Properties

Density, g/cm3 15
7.7
Embodied Carbon, kg CO2/kg material 23
2.9
Embodied Energy, MJ/kg 360
41
Embodied Water, L/kg 150
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25
150 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 630
510 to 580
Stiffness to Weight: Axial, points 9.6
14
Stiffness to Weight: Bending, points 14
25
Strength to Weight: Axial, points 15
26
Strength to Weight: Bending, points 13
23
Thermal Diffusivity, mm2/s 15
4.0
Thermal Shock Resistance, points 49
20

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
22 to 24
Copper (Cu), % 0
1.0 to 3.0
Iron (Fe), % 0
63.6 to 73.4
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
0.1 to 0.6
Nickel (Ni), % 0
3.5 to 5.5
Nitrogen (N), % 0
0.050 to 0.2
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Tungsten (W), % 95
0
Residuals, % 5.0
0