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S44800 Stainless Steel vs. Class 1 Tungsten

S44800 stainless steel belongs to the iron alloys classification, while class 1 tungsten belongs to the otherwise unclassified metals. There are 25 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 S44800 stainless steel and the bottom bar is class 1 tungsten.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
250
Elongation at Break, % 23
5.7
Poisson's Ratio 0.27
0.29
Rockwell C Hardness 18
28
Shear Modulus, GPa 82
98
Tensile Strength: Ultimate (UTS), MPa 590
860
Tensile Strength: Yield (Proof), MPa 450
580

Thermal Properties

Latent Heat of Fusion, J/g 300
160
Specific Heat Capacity, J/kg-K 480
120
Thermal Conductivity, W/m-K 17
21
Thermal Expansion, µm/m-K 11
5.1

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
12
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
7.4

Otherwise Unclassified Properties

Density, g/cm3 7.8
15
Embodied Carbon, kg CO2/kg material 3.8
22
Embodied Energy, MJ/kg 52
340
Embodied Water, L/kg 190
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
44
Resilience: Unit (Modulus of Resilience), kJ/m3 480
660
Stiffness to Weight: Axial, points 15
9.6
Stiffness to Weight: Bending, points 25
14
Strength to Weight: Axial, points 21
16
Strength to Weight: Bending, points 20
14
Thermal Diffusivity, mm2/s 4.6
12
Thermal Shock Resistance, points 19
48

Alloy Composition


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Carbon (C), % 0 to 0.010
0
Chromium (Cr), % 28 to 30
0
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 62.6 to 66.5
0
Manganese (Mn), % 0 to 0.3
0
Molybdenum (Mo), % 3.5 to 4.2
0
Nickel (Ni), % 2.0 to 2.5
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.2
0
Sulfur (S), % 0 to 0.020
0
Tungsten (W), % 0
90
Residuals, % 0
10