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AISI 422 Stainless Steel vs. EN 1.4122 Stainless Steel

Both AISI 422 stainless steel and EN 1.4122 stainless steel are iron alloys. They have a moderately high 95% of their average alloy composition in common. There are 32 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 AISI 422 stainless steel and the bottom bar is EN 1.4122 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 15 to 17
14
Fatigue Strength, MPa 410 to 500
260 to 360
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 560 to 660
480 to 520
Tensile Strength: Ultimate (UTS), MPa 910 to 1080
790 to 850
Tensile Strength: Yield (Proof), MPa 670 to 870
450 to 630

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Corrosion, °C 380
400
Maximum Temperature: Mechanical, °C 650
870
Melting Completion (Liquidus), °C 1480
1440
Melting Onset (Solidus), °C 1470
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 24
15
Thermal Expansion, µm/m-K 10
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.7
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 5.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 3.1
2.4
Embodied Energy, MJ/kg 44
33
Embodied Water, L/kg 100
120

Common Calculations

PREN (Pitting Resistance) 17
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
93 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 1140 to 1910
520 to 1000
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32 to 38
28 to 31
Strength to Weight: Bending, points 26 to 30
25 to 26
Thermal Diffusivity, mm2/s 6.4
4.0
Thermal Shock Resistance, points 33 to 39
28 to 30

Alloy Composition

Carbon (C), % 0.2 to 0.25
0.33 to 0.45
Chromium (Cr), % 11 to 12.5
15.5 to 17.5
Iron (Fe), % 81.9 to 85.8
77.2 to 83.4
Manganese (Mn), % 0.5 to 1.0
0 to 1.5
Molybdenum (Mo), % 0.9 to 1.3
0.8 to 1.3
Nickel (Ni), % 0.5 to 1.0
0 to 1.0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.015
Tungsten (W), % 0.9 to 1.3
0
Vanadium (V), % 0.2 to 0.3
0