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SAE-AISI 5155 Steel vs. Commercially Pure Silver

SAE-AISI 5155 steel belongs to the iron alloys classification, while commercially pure silver belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 5155 steel and the bottom bar is commercially pure silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 21
1.1 to 29
Poisson's Ratio 0.29
0.37
Shear Modulus, GPa 73
26
Shear Strength, MPa 390
120 to 190
Tensile Strength: Ultimate (UTS), MPa 620
190 to 340

Thermal Properties

Latent Heat of Fusion, J/g 250
110
Melting Completion (Liquidus), °C 1450
960
Melting Onset (Solidus), °C 1410
960
Specific Heat Capacity, J/kg-K 470
240
Thermal Conductivity, W/m-K 49
420
Thermal Expansion, µm/m-K 12
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
100
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
87

Otherwise Unclassified Properties

Density, g/cm3 7.8
10

Common Calculations

Stiffness to Weight: Axial, points 13
3.8
Stiffness to Weight: Bending, points 24
13
Strength to Weight: Axial, points 22
4.9 to 8.9
Strength to Weight: Bending, points 21
6.9 to 10
Thermal Diffusivity, mm2/s 13
170
Thermal Shock Resistance, points 20
9.5 to 17

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
Silver (Ag), % 0
99.9 to 100
Sulfur (S), % 0 to 0.040
0
Residuals, % 0
0 to 0.1