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ACI-ASTM CE8MN Steel vs. EN 1.4378 Stainless Steel

Both ACI-ASTM CE8MN steel and EN 1.4378 stainless steel are iron alloys. They have 83% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (6, 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 1.4378 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 29
14 to 34
Fatigue Strength, MPa 370
340 to 550
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 750
760 to 1130
Tensile Strength: Yield (Proof), MPa 500
430 to 970

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 440
410
Maximum Temperature: Mechanical, °C 1100
910
Melting Completion (Liquidus), °C 1440
1390
Melting Onset (Solidus), °C 1400
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 13
17

Otherwise Unclassified Properties

Base Metal Price, % relative 21
12
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 4.2
2.7
Embodied Energy, MJ/kg 58
39
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 40
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
150 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 620
470 to 2370
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
28 to 41
Strength to Weight: Bending, points 23
24 to 31
Thermal Shock Resistance, points 21
16 to 23

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.080
Chromium (Cr), % 22.5 to 25.5
17 to 19
Iron (Fe), % 56 to 66.4
61.2 to 69
Manganese (Mn), % 0 to 1.0
11.5 to 14.5
Molybdenum (Mo), % 3.0 to 4.5
0
Nickel (Ni), % 8.0 to 11
2.3 to 3.7
Nitrogen (N), % 0.1 to 0.3
0.2 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.060
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030