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AISI 422 Stainless Steel vs. AISI 304L Stainless Steel

Both AISI 422 stainless steel and AISI 304L stainless steel are iron alloys. They have 83% of their average alloy composition in common. There are 33 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 AISI 304L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260 to 330
160 to 350
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 15 to 17
6.7 to 46
Fatigue Strength, MPa 410 to 500
170 to 430
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 560 to 660
370 to 680
Tensile Strength: Ultimate (UTS), MPa 910 to 1080
540 to 1160
Tensile Strength: Yield (Proof), MPa 670 to 870
190 to 870

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 380
420
Maximum Temperature: Mechanical, °C 650
540
Melting Completion (Liquidus), °C 1480
1450
Melting Onset (Solidus), °C 1470
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 24
16
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.7
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 5.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 11
16
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.1
3.1
Embodied Energy, MJ/kg 44
44
Embodied Water, L/kg 100
150

Common Calculations

PREN (Pitting Resistance) 17
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
71 to 240
Resilience: Unit (Modulus of Resilience), kJ/m3 1140 to 1910
92 to 1900
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32 to 38
19 to 41
Strength to Weight: Bending, points 26 to 30
19 to 31
Thermal Diffusivity, mm2/s 6.4
4.2
Thermal Shock Resistance, points 33 to 39
12 to 25

Alloy Composition

Carbon (C), % 0.2 to 0.25
0 to 0.030
Chromium (Cr), % 11 to 12.5
18 to 20
Iron (Fe), % 81.9 to 85.8
65 to 74
Manganese (Mn), % 0.5 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.3
0
Nickel (Ni), % 0.5 to 1.0
8.0 to 12
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 0.75
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