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Class 4 Tungsten vs. S46500 Stainless Steel

Class 4 tungsten belongs to the otherwise unclassified metals classification, while S46500 stainless steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is class 4 tungsten and the bottom bar is S46500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 270
190
Elongation at Break, % 2.3
2.3 to 14
Poisson's Ratio 0.28
0.28
Rockwell C Hardness 31
29 to 54
Shear Modulus, GPa 110
75
Tensile Strength: Ultimate (UTS), MPa 790
1260 to 1930
Tensile Strength: Yield (Proof), MPa 580
1120 to 1810

Thermal Properties

Latent Heat of Fusion, J/g 170
280
Specific Heat Capacity, J/kg-K 130
470
Thermal Expansion, µm/m-K 4.5
11

Otherwise Unclassified Properties

Density, g/cm3 16
7.9
Embodied Carbon, kg CO2/kg material 24
3.6
Embodied Energy, MJ/kg 360
51
Embodied Water, L/kg 150
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16
43 to 210
Stiffness to Weight: Axial, points 9.6
14
Stiffness to Weight: Bending, points 14
25
Strength to Weight: Axial, points 14
44 to 68
Strength to Weight: Bending, points 12
33 to 44
Thermal Shock Resistance, points 46
44 to 67

Alloy Composition

Carbon (C), % 0
0 to 0.020
Chromium (Cr), % 0
11 to 12.5
Iron (Fe), % 0
72.6 to 76.1
Manganese (Mn), % 0
0 to 0.25
Molybdenum (Mo), % 0
0.75 to 1.3
Nickel (Ni), % 0
10.7 to 11.3
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.25
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
1.5 to 1.8
Tungsten (W), % 97
0
Residuals, % 3.0
0