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ACI-ASTM CE3MN Steel vs. SAE-AISI T8 Steel

Both ACI-ASTM CE3MN steel and SAE-AISI T8 steel are iron alloys. They have 68% of their average alloy composition in common. There are 22 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 ACI-ASTM CE3MN steel and the bottom bar is SAE-AISI T8 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
78
Tensile Strength: Ultimate (UTS), MPa 770
780 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Melting Completion (Liquidus), °C 1450
1730
Melting Onset (Solidus), °C 1410
1670
Specific Heat Capacity, J/kg-K 470
420
Thermal Conductivity, W/m-K 15
18
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 21
45
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 4.2
10
Embodied Energy, MJ/kg 58
160
Embodied Water, L/kg 180
120

Common Calculations

PREN (Pitting Resistance) 43
30
Stiffness to Weight: Axial, points 15
12
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 27
24 to 66
Strength to Weight: Bending, points 24
21 to 41
Thermal Diffusivity, mm2/s 4.1
4.8
Thermal Shock Resistance, points 21
24 to 66

Alloy Composition

Carbon (C), % 0 to 0.030
0.75 to 0.85
Chromium (Cr), % 24 to 26
3.8 to 4.5
Cobalt (Co), % 0
4.3 to 5.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 58.1 to 65.9
69.3 to 75.4
Manganese (Mn), % 0 to 1.5
0.2 to 0.4
Molybdenum (Mo), % 4.0 to 5.0
0.4 to 1.0
Nickel (Ni), % 6.0 to 8.0
0 to 0.3
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.2 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.030
Tungsten (W), % 0
13.3 to 14.8
Vanadium (V), % 0
1.8 to 2.4