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S38815 Stainless Steel vs. Class 1 Tungsten

S38815 stainless steel belongs to the iron alloys classification, while class 1 tungsten belongs to the otherwise unclassified metals. 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 S38815 stainless steel and the bottom bar is class 1 tungsten.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
250
Elongation at Break, % 34
5.7
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
98
Tensile Strength: Ultimate (UTS), MPa 610
860
Tensile Strength: Yield (Proof), MPa 290
580

Thermal Properties

Latent Heat of Fusion, J/g 370
160
Specific Heat Capacity, J/kg-K 500
120
Thermal Expansion, µm/m-K 15
5.1

Otherwise Unclassified Properties

Density, g/cm3 7.5
15
Embodied Carbon, kg CO2/kg material 3.8
22
Embodied Energy, MJ/kg 54
340
Embodied Water, L/kg 140
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
44
Resilience: Unit (Modulus of Resilience), kJ/m3 220
660
Stiffness to Weight: Axial, points 14
9.6
Stiffness to Weight: Bending, points 25
14
Strength to Weight: Axial, points 22
16
Strength to Weight: Bending, points 21
14
Thermal Shock Resistance, points 15
48

Alloy Composition

Aluminum (Al), % 0 to 0.3
0
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 13 to 15
0
Copper (Cu), % 0.75 to 1.5
0
Iron (Fe), % 56.1 to 67
0
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 0.75 to 1.5
0
Nickel (Ni), % 13 to 17
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 5.5 to 6.5
0
Sulfur (S), % 0 to 0.020
0
Tungsten (W), % 0
90
Residuals, % 0
10