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SAE-AISI L3 Steel vs. N08031 Stainless Steel

Both SAE-AISI L3 steel and N08031 stainless steel are iron alloys. They have a modest 35% of their average alloy composition in common, which, by itself, doesn't mean much. There are 21 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 L3 steel and the bottom bar is N08031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
81
Tensile Strength: Ultimate (UTS), MPa 600 to 2250
730

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 43
12
Thermal Expansion, µm/m-K 13
18

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
39
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 1.9
7.1
Embodied Energy, MJ/kg 27
96
Embodied Water, L/kg 53
240

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21 to 80
25
Strength to Weight: Bending, points 20 to 49
22
Thermal Diffusivity, mm2/s 12
3.1
Thermal Shock Resistance, points 18 to 67
14

Alloy Composition

Carbon (C), % 1.0 to 1.1
0 to 0.015
Chromium (Cr), % 1.3 to 1.7
26 to 28
Copper (Cu), % 0
1.0 to 1.4
Iron (Fe), % 95.5 to 97.3
29 to 36.9
Manganese (Mn), % 0.25 to 0.8
0 to 2.0
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 0
30 to 32
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.1 to 0.5
0 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.010
Vanadium (V), % 0.1 to 0.3
0