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AISI 422 Stainless Steel vs. EN 1.4588 Stainless Steel

Both AISI 422 stainless steel and EN 1.4588 stainless steel are iron alloys. They have 60% 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 1.4588 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260 to 330
160
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 15 to 17
34
Fatigue Strength, MPa 410 to 500
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 910 to 1080
540
Tensile Strength: Yield (Proof), MPa 670 to 870
240

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 380
420
Maximum Temperature: Mechanical, °C 650
1100
Melting Completion (Liquidus), °C 1480
1450
Melting Onset (Solidus), °C 1470
1410
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 24
15
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.7
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 5.3
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 11
33
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 3.1
6.2
Embodied Energy, MJ/kg 44
84
Embodied Water, L/kg 100
200

Common Calculations

PREN (Pitting Resistance) 17
44
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
150
Resilience: Unit (Modulus of Resilience), kJ/m3 1140 to 1910
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32 to 38
18
Strength to Weight: Bending, points 26 to 30
18
Thermal Diffusivity, mm2/s 6.4
4.0
Thermal Shock Resistance, points 33 to 39
11

Alloy Composition

Carbon (C), % 0.2 to 0.25
0 to 0.020
Chromium (Cr), % 11 to 12.5
19 to 21
Copper (Cu), % 0
0.5 to 1.5
Iron (Fe), % 81.9 to 85.8
41.2 to 50.4
Manganese (Mn), % 0.5 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.3
6.0 to 7.0
Nickel (Ni), % 0.5 to 1.0
24 to 26
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.020
Tungsten (W), % 0.9 to 1.3
0
Vanadium (V), % 0.2 to 0.3
0