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EN 1.4422 Stainless Steel vs. ACI-ASTM CN3MN Steel

Both EN 1.4422 stainless steel and ACI-ASTM CN3MN steel are iron alloys. They have 66% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4422 stainless steel and the bottom bar is ACI-ASTM CN3MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 17
39
Fatigue Strength, MPa 380
250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 850
620
Tensile Strength: Yield (Proof), MPa 630
300

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Maximum Temperature: Corrosion, °C 390
430
Maximum Temperature: Mechanical, °C 760
1100
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 16
13
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 11
33
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 2.7
6.2
Embodied Energy, MJ/kg 37
84
Embodied Water, L/kg 110
200

Common Calculations

PREN (Pitting Resistance) 17
46
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
200
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30
21
Strength to Weight: Bending, points 25
20
Thermal Diffusivity, mm2/s 4.3
3.4
Thermal Shock Resistance, points 31
14

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.030
Chromium (Cr), % 11 to 13
20 to 22
Copper (Cu), % 0.2 to 0.8
0 to 0.75
Iron (Fe), % 76.8 to 83.5
41.4 to 50.3
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 1.3 to 1.8
6.0 to 7.0
Nickel (Ni), % 4.0 to 5.0
23.5 to 25.5
Nitrogen (N), % 0 to 0.020
0.18 to 0.26
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.0030
0 to 0.010