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AISI 420 Stainless Steel vs. EN 1.8522 Steel

Both AISI 420 stainless steel and EN 1.8522 steel are iron alloys. They have 90% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AISI 420 stainless steel and the bottom bar is EN 1.8522 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
220 to 380
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
74
Tensile Strength: Ultimate (UTS), MPa 690 to 1720
730 to 1250

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 620
470
Melting Completion (Liquidus), °C 1510
1460
Melting Onset (Solidus), °C 1450
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 27
39
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
4.2
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
2.2
Embodied Energy, MJ/kg 28
31
Embodied Water, L/kg 100
63

Common Calculations

PREN (Pitting Resistance) 14
6.2
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25 to 62
26 to 44
Strength to Weight: Bending, points 22 to 41
23 to 33
Thermal Diffusivity, mm2/s 7.3
11
Thermal Shock Resistance, points 25 to 62
21 to 36

Alloy Composition

Carbon (C), % 0.15 to 0.4
0.29 to 0.36
Chromium (Cr), % 12 to 14
2.8 to 3.3
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 82.3 to 87.9
93.7 to 96
Manganese (Mn), % 0 to 1.0
0.4 to 0.7
Molybdenum (Mo), % 0 to 0.5
0.7 to 1.2
Nickel (Ni), % 0 to 0.75
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035
Vanadium (V), % 0
0.15 to 0.25