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SAE-AISI L3 Steel vs. ACI-ASTM CK3MCuN Steel

Both SAE-AISI L3 steel and ACI-ASTM CK3MCuN steel are iron alloys. They have 55% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI L3 steel and the bottom bar is ACI-ASTM CK3MCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
80
Tensile Strength: Ultimate (UTS), MPa 600 to 2250
620

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1350
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 43
12
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
29
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.9
5.6
Embodied Energy, MJ/kg 27
76
Embodied Water, L/kg 53
190

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21 to 80
21
Strength to Weight: Bending, points 20 to 49
20
Thermal Diffusivity, mm2/s 12
3.2
Thermal Shock Resistance, points 18 to 67
14

Alloy Composition

Carbon (C), % 1.0 to 1.1
0 to 0.025
Chromium (Cr), % 1.3 to 1.7
19.5 to 20.5
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 95.5 to 97.3
49.5 to 56.3
Manganese (Mn), % 0.25 to 0.8
0 to 1.2
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 0
17.5 to 19.5
Nitrogen (N), % 0
0.18 to 0.24
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.1 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.010
Vanadium (V), % 0.1 to 0.3
0