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ACI-ASTM CE8MN Steel vs. EN 1.7378 Steel

Both ACI-ASTM CE8MN steel and EN 1.7378 steel are iron alloys. Both are furnished in the normalized and tempered condition. They have 65% of their average alloy composition in common. There are 30 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 EN 1.7378 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 29
17
Fatigue Strength, MPa 370
330
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
74
Tensile Strength: Ultimate (UTS), MPa 750
700
Tensile Strength: Yield (Proof), MPa 500
490

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Maximum Temperature: Mechanical, °C 1100
460
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 21
4.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.2
2.3
Embodied Energy, MJ/kg 58
33
Embodied Water, L/kg 180
61

Common Calculations

PREN (Pitting Resistance) 40
5.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
110
Resilience: Unit (Modulus of Resilience), kJ/m3 620
630
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
25
Strength to Weight: Bending, points 23
22
Thermal Diffusivity, mm2/s 4.2
10
Thermal Shock Resistance, points 21
20

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0.0015 to 0.0070
Carbon (C), % 0 to 0.080
0.050 to 0.1
Chromium (Cr), % 22.5 to 25.5
2.2 to 2.6
Iron (Fe), % 56 to 66.4
94.6 to 96.1
Manganese (Mn), % 0 to 1.0
0.3 to 0.7
Molybdenum (Mo), % 3.0 to 4.5
0.9 to 1.1
Nickel (Ni), % 8.0 to 11
0
Nitrogen (N), % 0.1 to 0.3
0 to 0.010
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.5
0.15 to 0.45
Sulfur (S), % 0 to 0.040
0 to 0.010
Titanium (Ti), % 0
0.050 to 0.1
Vanadium (V), % 0
0.2 to 0.3