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Class 2 Tungsten vs. S38815 Stainless Steel

Class 2 tungsten belongs to the otherwise unclassified metals classification, while S38815 stainless steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is class 2 tungsten and the bottom bar is S38815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 260
190
Elongation at Break, % 5.7
34
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 100
74
Tensile Strength: Ultimate (UTS), MPa 860
610
Tensile Strength: Yield (Proof), MPa 580
290

Thermal Properties

Latent Heat of Fusion, J/g 160
370
Specific Heat Capacity, J/kg-K 120
500
Thermal Expansion, µm/m-K 4.6
15

Otherwise Unclassified Properties

Density, g/cm3 15
7.5
Embodied Carbon, kg CO2/kg material 23
3.8
Embodied Energy, MJ/kg 350
54
Embodied Water, L/kg 140
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44
170
Resilience: Unit (Modulus of Resilience), kJ/m3 640
220
Stiffness to Weight: Axial, points 9.6
14
Stiffness to Weight: Bending, points 14
25
Strength to Weight: Axial, points 16
22
Strength to Weight: Bending, points 13
21
Thermal Shock Resistance, points 52
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.3
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
13 to 15
Copper (Cu), % 0
0.75 to 1.5
Iron (Fe), % 0
56.1 to 67
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
0.75 to 1.5
Nickel (Ni), % 0
13 to 17
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
5.5 to 6.5
Sulfur (S), % 0
0 to 0.020
Tungsten (W), % 92.5
0
Residuals, % 7.5
0