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AISI 422 Stainless Steel vs. EN 1.7321 Steel

Both AISI 422 stainless steel and EN 1.7321 steel are iron alloys. They have 86% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (10, 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 1.7321 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260 to 330
150 to 170
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 910 to 1080
490 to 1460

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 650
410
Melting Completion (Liquidus), °C 1480
1460
Melting Onset (Solidus), °C 1470
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 24
45
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.7
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 5.3
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.5
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 3.1
1.5
Embodied Energy, MJ/kg 44
20
Embodied Water, L/kg 100
50

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32 to 38
17 to 52
Strength to Weight: Bending, points 26 to 30
18 to 36
Thermal Diffusivity, mm2/s 6.4
12
Thermal Shock Resistance, points 33 to 39
14 to 43

Alloy Composition

Carbon (C), % 0.2 to 0.25
0.17 to 0.23
Chromium (Cr), % 11 to 12.5
0.3 to 0.6
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 81.9 to 85.8
97.1 to 98.4
Manganese (Mn), % 0.5 to 1.0
0.7 to 1.0
Molybdenum (Mo), % 0.9 to 1.3
0.4 to 0.5
Nickel (Ni), % 0.5 to 1.0
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.3
Sulfur (S), % 0 to 0.025
0 to 0.025
Tungsten (W), % 0.9 to 1.3
0
Vanadium (V), % 0.2 to 0.3
0

Comparable Variants