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EN 1.4821 Stainless Steel vs. EN 1.4422 Stainless Steel

Both EN 1.4821 stainless steel and EN 1.4422 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4821 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, % 18
17
Fatigue Strength, MPa 280
380
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
76
Shear Strength, MPa 450
520
Tensile Strength: Ultimate (UTS), MPa 730
850
Tensile Strength: Yield (Proof), MPa 450
630

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Corrosion, °C 450
390
Maximum Temperature: Mechanical, °C 1100
760
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 17
16
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 15
11
Density, g/cm3 7.6
7.9
Embodied Carbon, kg CO2/kg material 2.9
2.7
Embodied Energy, MJ/kg 41
37
Embodied Water, L/kg 160
110

Common Calculations

PREN (Pitting Resistance) 26
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
130
Resilience: Unit (Modulus of Resilience), kJ/m3 500
1000
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 26
30
Strength to Weight: Bending, points 23
25
Thermal Diffusivity, mm2/s 4.6
4.3
Thermal Shock Resistance, points 21
31

Alloy Composition

Carbon (C), % 0.1 to 0.2
0 to 0.020
Chromium (Cr), % 24.5 to 26.5
11 to 13
Copper (Cu), % 0
0.2 to 0.8
Iron (Fe), % 64.2 to 71.1
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), % 3.5 to 5.5
4.0 to 5.0
Nitrogen (N), % 0 to 0.1
0 to 0.020
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0.8 to 1.5
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.0030