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EN 1.4123 Stainless Steel vs. ACI-ASTM CN3MN Steel

Both EN 1.4123 stainless steel and ACI-ASTM CN3MN steel are iron alloys. They have 64% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (5, 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 CN3MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 250
180
Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 720 to 810
620

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 390
430
Maximum Temperature: Mechanical, °C 840
1100
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 23
13
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 10
33
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 4.2
6.2
Embodied Energy, MJ/kg 62
84
Embodied Water, L/kg 120
200

Common Calculations

PREN (Pitting Resistance) 24
46
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26 to 29
21
Strength to Weight: Bending, points 23 to 25
20
Thermal Diffusivity, mm2/s 6.3
3.4
Thermal Shock Resistance, points 26 to 29
14

Alloy Composition

Carbon (C), % 0.35 to 0.5
0 to 0.030
Chromium (Cr), % 14 to 16.5
20 to 22
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 76.7 to 84.6
41.4 to 50.3
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 1.0 to 2.5
6.0 to 7.0
Nickel (Ni), % 0 to 0.5
23.5 to 25.5
Nitrogen (N), % 0.1 to 0.3
0.18 to 0.26
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.010
Vanadium (V), % 0 to 1.5
0