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ACI-ASTM CE8MN Steel vs. SAE-AISI 9254 Steel

Both ACI-ASTM CE8MN steel and SAE-AISI 9254 steel are iron alloys. They have 63% 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 CE8MN steel and the bottom bar is SAE-AISI 9254 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 29
20
Fatigue Strength, MPa 370
280
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
72
Tensile Strength: Ultimate (UTS), MPa 750
660
Tensile Strength: Yield (Proof), MPa 500
410

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Mechanical, °C 1100
410
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
46
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 21
2.2
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.2
1.5
Embodied Energy, MJ/kg 58
20
Embodied Water, L/kg 180
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
110
Resilience: Unit (Modulus of Resilience), kJ/m3 620
450
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
24
Strength to Weight: Bending, points 23
22
Thermal Diffusivity, mm2/s 4.2
12
Thermal Shock Resistance, points 21
20

Alloy Composition

Carbon (C), % 0 to 0.080
0.51 to 0.59
Chromium (Cr), % 22.5 to 25.5
0.6 to 0.8
Iron (Fe), % 56 to 66.4
96.1 to 97.1
Manganese (Mn), % 0 to 1.0
0.6 to 0.8
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 0.035
Silicon (Si), % 0 to 1.5
1.2 to 1.6
Sulfur (S), % 0 to 0.040
0 to 0.040