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EN 1.4123 Stainless Steel vs. ACI-ASTM CE8MN Steel

Both EN 1.4123 stainless steel and ACI-ASTM CE8MN steel are iron alloys. They have 80% of their average alloy composition in common. There are 26 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 EN 1.4123 stainless steel and the bottom bar is ACI-ASTM CE8MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 720 to 810
750

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
440
Maximum Temperature: Mechanical, °C 840
1100
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 23
16
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
21
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 4.2
4.2
Embodied Energy, MJ/kg 62
58
Embodied Water, L/kg 120
180

Common Calculations

PREN (Pitting Resistance) 24
40
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26 to 29
27
Strength to Weight: Bending, points 23 to 25
23
Thermal Diffusivity, mm2/s 6.3
4.2
Thermal Shock Resistance, points 26 to 29
21

Alloy Composition

Carbon (C), % 0.35 to 0.5
0 to 0.080
Chromium (Cr), % 14 to 16.5
22.5 to 25.5
Iron (Fe), % 76.7 to 84.6
56 to 66.4
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 1.0 to 2.5
3.0 to 4.5
Nickel (Ni), % 0 to 0.5
8.0 to 11
Nitrogen (N), % 0.1 to 0.3
0.1 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.040
Vanadium (V), % 0 to 1.5
0