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AISI 348 Stainless Steel vs. SAE-AISI L3 Steel

Both AISI 348 stainless steel and SAE-AISI L3 steel are iron alloys. They have 71% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is AISI 348 stainless steel and the bottom bar is SAE-AISI L3 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Tensile Strength: Ultimate (UTS), MPa 580
600 to 2250

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
43
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 19
2.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.7
1.9
Embodied Energy, MJ/kg 54
27
Embodied Water, L/kg 150
53

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
21 to 80
Strength to Weight: Bending, points 20
20 to 49
Thermal Diffusivity, mm2/s 4.2
12
Thermal Shock Resistance, points 13
18 to 67

Alloy Composition

Carbon (C), % 0 to 0.080
1.0 to 1.1
Chromium (Cr), % 17 to 19
1.3 to 1.7
Cobalt (Co), % 0 to 0.2
0
Iron (Fe), % 63.8 to 74
95.5 to 97.3
Manganese (Mn), % 0 to 2.0
0.25 to 0.8
Nickel (Ni), % 9.0 to 13
0
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.75
0.1 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tantalum (Ta), % 0 to 0.1
0
Vanadium (V), % 0
0.1 to 0.3