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SAE-AISI D3 Steel vs. Class 4 Tungsten

SAE-AISI D3 steel belongs to the iron alloys classification, while class 4 tungsten belongs to the otherwise unclassified metals. There are 23 material properties with values for both materials. Properties with values for just one material (8, 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 SAE-AISI D3 steel and the bottom bar is class 4 tungsten.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
270
Elongation at Break, % 9.8 to 15
2.3
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 74
110
Tensile Strength: Ultimate (UTS), MPa 770 to 2050
790
Tensile Strength: Yield (Proof), MPa 480 to 1550
580

Thermal Properties

Latent Heat of Fusion, J/g 270
170
Specific Heat Capacity, J/kg-K 480
130
Thermal Conductivity, W/m-K 31
30
Thermal Expansion, µm/m-K 12
4.5

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
17
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
9.7

Otherwise Unclassified Properties

Density, g/cm3 7.7
16
Embodied Carbon, kg CO2/kg material 3.2
24
Embodied Energy, MJ/kg 48
360
Embodied Water, L/kg 100
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 97 to 180
16
Stiffness to Weight: Axial, points 14
9.6
Stiffness to Weight: Bending, points 25
14
Strength to Weight: Axial, points 28 to 74
14
Strength to Weight: Bending, points 24 to 47
12
Thermal Diffusivity, mm2/s 8.3
15
Thermal Shock Resistance, points 23 to 63
46

Alloy Composition

Carbon (C), % 2.0 to 2.4
0
Chromium (Cr), % 11 to 13.5
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 80.3 to 87
0
Manganese (Mn), % 0 to 0.6
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.6
0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 0 to 1.0
97
Vanadium (V), % 0 to 1.0
0
Residuals, % 0
3.0