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ACI-ASTM CE8MN Steel vs. SAE-AISI 1042 Steel

Both ACI-ASTM CE8MN steel and SAE-AISI 1042 steel are iron alloys. They have 62% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CE8MN steel and the bottom bar is SAE-AISI 1042 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 29
14 to 18
Fatigue Strength, MPa 370
230 to 370
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 750
620 to 700
Tensile Strength: Yield (Proof), MPa 500
340 to 580

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
52
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 21
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.2
1.4
Embodied Energy, MJ/kg 58
18
Embodied Water, L/kg 180
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
87 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 620
320 to 900
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
22 to 25
Strength to Weight: Bending, points 23
21 to 22
Thermal Diffusivity, mm2/s 4.2
14
Thermal Shock Resistance, points 21
20 to 22

Alloy Composition

Carbon (C), % 0 to 0.080
0.4 to 0.47
Chromium (Cr), % 22.5 to 25.5
0
Iron (Fe), % 56 to 66.4
98.5 to 99
Manganese (Mn), % 0 to 1.0
0.6 to 0.9
Molybdenum (Mo), % 3.0 to 4.5
0
Nickel (Ni), % 8.0 to 11
0
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0
Sulfur (S), % 0 to 0.040
0 to 0.050