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SAE-AISI L6 Steel vs. SAE-AISI S6 Steel

Both SAE-AISI L6 steel and SAE-AISI S6 steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI L6 steel and the bottom bar is SAE-AISI S6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
72
Tensile Strength: Ultimate (UTS), MPa 670 to 2090
670 to 1920

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 42
41
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 3.6
3.2
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.0
2.3
Embodied Energy, MJ/kg 28
33
Embodied Water, L/kg 54
56

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 74
24 to 70
Strength to Weight: Bending, points 22 to 46
22 to 45
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 22 to 70
22 to 64

Alloy Composition

Carbon (C), % 0.65 to 0.75
0.4 to 0.5
Chromium (Cr), % 0.6 to 1.2
1.2 to 1.5
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 93.6 to 97.3
92.8 to 94.7
Manganese (Mn), % 0.25 to 0.8
1.2 to 1.5
Molybdenum (Mo), % 0 to 0.5
0.3 to 0.5
Nickel (Ni), % 1.3 to 2.0
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.5
2.0 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0 to 0.3
0.2 to 0.4

Comparable Variants