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Class 3 Tungsten vs. S82012 Stainless Steel

Class 3 tungsten belongs to the otherwise unclassified metals classification, while S82012 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is class 3 tungsten and the bottom bar is S82012 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
Rockwell C Hardness 30
27
Shear Modulus, GPa 100
78
Tensile Strength: Ultimate (UTS), MPa 830
800
Tensile Strength: Yield (Proof), MPa 580
560

Thermal Properties

Latent Heat of Fusion, J/g 170
280
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
2.4
Embodied Energy, MJ/kg 360
35
Embodied Water, L/kg 150
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25
290
Resilience: Unit (Modulus of Resilience), kJ/m3 630
790
Stiffness to Weight: Axial, points 9.6
14
Stiffness to Weight: Bending, points 14
25
Strength to Weight: Axial, points 15
29
Strength to Weight: Bending, points 13
25
Thermal Diffusivity, mm2/s 15
3.9
Thermal Shock Resistance, points 49
23

Alloy Composition

Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
19 to 20.5
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 0
71.3 to 77.9
Manganese (Mn), % 0
2.0 to 4.0
Molybdenum (Mo), % 0
0.1 to 0.6
Nickel (Ni), % 0
0.8 to 1.5
Nitrogen (N), % 0
0.16 to 0.26
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 0.8
Sulfur (S), % 0
0 to 0.0050
Tungsten (W), % 95
0
Residuals, % 5.0
0