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SAE-AISI 1039 Steel vs. Class 3 Tungsten

SAE-AISI 1039 steel belongs to the iron alloys classification, while class 3 tungsten belongs to the otherwise unclassified metals. There are 24 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 SAE-AISI 1039 steel and the bottom bar is class 3 tungsten.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
270
Elongation at Break, % 14 to 18
3.4
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
100
Tensile Strength: Ultimate (UTS), MPa 610 to 690
830
Tensile Strength: Yield (Proof), MPa 340 to 580
580

Thermal Properties

Latent Heat of Fusion, J/g 250
170
Specific Heat Capacity, J/kg-K 470
120
Thermal Conductivity, W/m-K 51
30
Thermal Expansion, µm/m-K 12
4.5

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
15
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.5

Otherwise Unclassified Properties

Density, g/cm3 7.8
15
Embodied Carbon, kg CO2/kg material 1.4
23
Embodied Energy, MJ/kg 18
360
Embodied Water, L/kg 46
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 88 to 94
25
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 890
630
Stiffness to Weight: Axial, points 13
9.6
Stiffness to Weight: Bending, points 24
14
Strength to Weight: Axial, points 22 to 24
15
Strength to Weight: Bending, points 20 to 22
13
Thermal Diffusivity, mm2/s 14
15
Thermal Shock Resistance, points 19 to 22
49

Alloy Composition

Carbon (C), % 0.37 to 0.44
0
Iron (Fe), % 98.5 to 98.9
0
Manganese (Mn), % 0.7 to 1.0
0
Phosphorus (P), % 0 to 0.040
0
Sulfur (S), % 0 to 0.050
0
Tungsten (W), % 0
95
Residuals, % 0
5.0