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AISI 422 Stainless Steel vs. EN 1.4443 Stainless Steel

Both AISI 422 stainless steel and EN 1.4443 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, 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 1.4443 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260 to 330
140
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 15 to 17
34
Fatigue Strength, MPa 410 to 500
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
78
Tensile Strength: Ultimate (UTS), MPa 910 to 1080
490
Tensile Strength: Yield (Proof), MPa 670 to 870
210

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 380
420
Maximum Temperature: Mechanical, °C 650
1000
Melting Completion (Liquidus), °C 1480
1440
Melting Onset (Solidus), °C 1470
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 24
15
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.7
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 5.3
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 11
20
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 3.1
4.0
Embodied Energy, MJ/kg 44
54
Embodied Water, L/kg 100
160

Common Calculations

PREN (Pitting Resistance) 17
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
140
Resilience: Unit (Modulus of Resilience), kJ/m3 1140 to 1910
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32 to 38
17
Strength to Weight: Bending, points 26 to 30
18
Thermal Diffusivity, mm2/s 6.4
3.9
Thermal Shock Resistance, points 33 to 39
11

Alloy Composition

Carbon (C), % 0.2 to 0.25
0 to 0.050
Chromium (Cr), % 11 to 12.5
18 to 20
Iron (Fe), % 81.9 to 85.8
60.4 to 69.5
Manganese (Mn), % 0.5 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.3
2.5 to 3.0
Nickel (Ni), % 0.5 to 1.0
10 to 13
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.5
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0.9 to 1.3
0
Vanadium (V), % 0.2 to 0.3
0