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SAE-AISI 5155 Steel vs. Class 1 Tungsten

SAE-AISI 5155 steel belongs to the iron alloys classification, while class 1 tungsten belongs to the otherwise unclassified metals. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 5155 steel and the bottom bar is class 1 tungsten.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
250
Elongation at Break, % 21
5.7
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
98
Tensile Strength: Ultimate (UTS), MPa 620
860
Tensile Strength: Yield (Proof), MPa 380
580

Thermal Properties

Latent Heat of Fusion, J/g 250
160
Specific Heat Capacity, J/kg-K 470
120
Thermal Conductivity, W/m-K 49
21
Thermal Expansion, µm/m-K 12
5.1

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
12
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
7.4

Otherwise Unclassified Properties

Density, g/cm3 7.8
15
Embodied Carbon, kg CO2/kg material 1.4
22
Embodied Energy, MJ/kg 19
340
Embodied Water, L/kg 49
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
44
Resilience: Unit (Modulus of Resilience), kJ/m3 380
660
Stiffness to Weight: Axial, points 13
9.6
Stiffness to Weight: Bending, points 24
14
Strength to Weight: Axial, points 22
16
Strength to Weight: Bending, points 21
14
Thermal Diffusivity, mm2/s 13
12
Thermal Shock Resistance, points 20
48

Alloy Composition


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Carbon (C), % 0.51 to 0.59
0
Chromium (Cr), % 0.7 to 0.9
0
Iron (Fe), % 97.2 to 97.9
0
Manganese (Mn), % 0.7 to 0.9
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.15 to 0.35
0
Sulfur (S), % 0 to 0.040
0
Tungsten (W), % 0
90
Residuals, % 0
10