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ACI-ASTM CE3MN Steel vs. SAE-AISI 4142 Steel

Both ACI-ASTM CE3MN steel and SAE-AISI 4142 steel are iron alloys. They have 64% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CE3MN steel and the bottom bar is SAE-AISI 4142 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 20
20
Fatigue Strength, MPa 380
250
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
73
Tensile Strength: Ultimate (UTS), MPa 770
590
Tensile Strength: Yield (Proof), MPa 590
370

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
420
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
44
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 21
2.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.2
1.5
Embodied Energy, MJ/kg 58
20
Embodied Water, L/kg 180
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
100
Resilience: Unit (Modulus of Resilience), kJ/m3 840
360
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
21
Strength to Weight: Bending, points 24
20
Thermal Diffusivity, mm2/s 4.1
12
Thermal Shock Resistance, points 21
19

Alloy Composition

Carbon (C), % 0 to 0.030
0.4 to 0.45
Chromium (Cr), % 24 to 26
0.8 to 1.1
Iron (Fe), % 58.1 to 65.9
96.8 to 97.8
Manganese (Mn), % 0 to 1.5
0.75 to 1.0
Molybdenum (Mo), % 4.0 to 5.0
0.15 to 0.25
Nickel (Ni), % 6.0 to 8.0
0
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.040
0 to 0.040