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AISI 321H Stainless Steel vs. EN 1.4422 Stainless Steel

Both AISI 321H stainless steel and EN 1.4422 stainless steel are iron alloys. They have 87% 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 321H stainless steel and the bottom bar is EN 1.4422 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
17
Fatigue Strength, MPa 200
380
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 400
520
Tensile Strength: Ultimate (UTS), MPa 580
850
Tensile Strength: Yield (Proof), MPa 230
630

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Corrosion, °C 480
390
Maximum Temperature: Mechanical, °C 940
760
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 16
11
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.2
2.7
Embodied Energy, MJ/kg 46
37
Embodied Water, L/kg 140
110

Common Calculations

PREN (Pitting Resistance) 18
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
130
Resilience: Unit (Modulus of Resilience), kJ/m3 140
1000
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
30
Strength to Weight: Bending, points 20
25
Thermal Diffusivity, mm2/s 4.0
4.3
Thermal Shock Resistance, points 12
31

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.020
Chromium (Cr), % 17 to 19
11 to 13
Copper (Cu), % 0
0.2 to 0.8
Iron (Fe), % 65.4 to 74
76.8 to 83.5
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
1.3 to 1.8
Nickel (Ni), % 9.0 to 12
4.0 to 5.0
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.0030
Titanium (Ti), % 0 to 0.7
0