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Class 3 Tungsten vs. SAE-AISI P4 Steel

Class 3 tungsten belongs to the otherwise unclassified metals classification, while SAE-AISI P4 steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is class 3 tungsten and the bottom bar is SAE-AISI P4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 270
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 100
74
Tensile Strength: Ultimate (UTS), MPa 830
390 to 1980

Thermal Properties

Latent Heat of Fusion, J/g 170
260
Specific Heat Capacity, J/kg-K 120
470
Thermal Conductivity, W/m-K 30
41
Thermal Expansion, µm/m-K 4.5
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
9.3

Otherwise Unclassified Properties

Density, g/cm3 15
7.8
Embodied Carbon, kg CO2/kg material 23
1.8
Embodied Energy, MJ/kg 360
23
Embodied Water, L/kg 150
68

Common Calculations

Stiffness to Weight: Axial, points 9.6
14
Stiffness to Weight: Bending, points 14
24
Strength to Weight: Axial, points 15
14 to 70
Strength to Weight: Bending, points 13
15 to 45
Thermal Diffusivity, mm2/s 15
11
Thermal Shock Resistance, points 49
13 to 64

Alloy Composition

Carbon (C), % 0
0 to 0.12
Chromium (Cr), % 0
4.0 to 5.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0
92.3 to 95.3
Manganese (Mn), % 0
0.2 to 0.6
Molybdenum (Mo), % 0
0.4 to 1.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.1 to 0.4
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 95
0
Residuals, % 5.0
0