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SAE-AISI L6 Steel vs. ACI-ASTM CD4MCuN Steel

Both SAE-AISI L6 steel and ACI-ASTM CD4MCuN steel are iron alloys. They have 67% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI L6 steel and the bottom bar is ACI-ASTM CD4MCuN 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
770

Thermal Properties

Latent Heat of Fusion, J/g 250
300
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
17
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
18
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.0
3.5
Embodied Energy, MJ/kg 28
49
Embodied Water, L/kg 54
180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 74
28
Strength to Weight: Bending, points 22 to 46
24
Thermal Diffusivity, mm2/s 11
4.5
Thermal Shock Resistance, points 22 to 70
21

Alloy Composition

Carbon (C), % 0.65 to 0.75
0 to 0.040
Chromium (Cr), % 0.6 to 1.2
24.5 to 26.5
Copper (Cu), % 0 to 0.25
2.7 to 3.3
Iron (Fe), % 93.6 to 97.3
59.5 to 66.3
Manganese (Mn), % 0.25 to 0.8
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
1.7 to 2.3
Nickel (Ni), % 1.3 to 2.0
4.7 to 6.0
Nitrogen (N), % 0
0.1 to 0.25
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 0.040
Vanadium (V), % 0 to 0.3
0