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EN 1.4422 Stainless Steel vs. ACI-ASTM CD3MN Steel

Both EN 1.4422 stainless steel and ACI-ASTM CD3MN steel are iron alloys. They have 87% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 CD3MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
29
Fatigue Strength, MPa 380
340
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 850
710
Tensile Strength: Yield (Proof), MPa 630
460

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 390
430
Maximum Temperature: Mechanical, °C 760
1060
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 16
16
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 11
18
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.7
3.6
Embodied Energy, MJ/kg 37
50
Embodied Water, L/kg 110
160

Common Calculations

PREN (Pitting Resistance) 17
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
180
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
530
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30
25
Strength to Weight: Bending, points 25
23
Thermal Diffusivity, mm2/s 4.3
4.3
Thermal Shock Resistance, points 31
20

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.030
Chromium (Cr), % 11 to 13
21 to 23.5
Copper (Cu), % 0.2 to 0.8
0 to 1.0
Iron (Fe), % 76.8 to 83.5
62.6 to 71.9
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 1.3 to 1.8
2.5 to 3.5
Nickel (Ni), % 4.0 to 5.0
4.5 to 6.5
Nitrogen (N), % 0 to 0.020
0.1 to 0.3
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 0.020