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SAE-AISI L6 Steel vs. S32304 Stainless Steel

Both SAE-AISI L6 steel and S32304 stainless steel are iron alloys. They have 74% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI L6 steel and the bottom bar is S32304 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
79
Tensile Strength: Ultimate (UTS), MPa 670 to 2090
670

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 42
15
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.6
14
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.0
2.8
Embodied Energy, MJ/kg 28
40
Embodied Water, L/kg 54
160

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 74
24
Strength to Weight: Bending, points 22 to 46
22
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 22 to 70
18

Alloy Composition

Carbon (C), % 0.65 to 0.75
0 to 0.030
Chromium (Cr), % 0.6 to 1.2
21.5 to 24.5
Copper (Cu), % 0 to 0.25
0.050 to 0.6
Iron (Fe), % 93.6 to 97.3
65 to 75.4
Manganese (Mn), % 0.25 to 0.8
0 to 2.5
Molybdenum (Mo), % 0 to 0.5
0.050 to 0.6
Nickel (Ni), % 1.3 to 2.0
3.0 to 5.5
Nitrogen (N), % 0
0.050 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0 to 0.3
0