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EN 1.4571 Stainless Steel vs. AISI 420 Stainless Steel

Both EN 1.4571 stainless steel and AISI 420 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4571 stainless steel and the bottom bar is AISI 420 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 40
8.0 to 15
Fatigue Strength, MPa 200 to 330
220 to 670
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
76
Shear Strength, MPa 410 to 550
420 to 1010
Tensile Strength: Ultimate (UTS), MPa 600 to 900
690 to 1720
Tensile Strength: Yield (Proof), MPa 230 to 570
380 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 480
390
Maximum Temperature: Mechanical, °C 950
620
Melting Completion (Liquidus), °C 1440
1510
Melting Onset (Solidus), °C 1400
1450
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
27
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 19
7.5
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 3.9
2.0
Embodied Energy, MJ/kg 54
28
Embodied Water, L/kg 150
100

Common Calculations

PREN (Pitting Resistance) 25
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 190
88 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 820
380 to 4410
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 32
25 to 62
Strength to Weight: Bending, points 20 to 26
22 to 41
Thermal Diffusivity, mm2/s 4.0
7.3
Thermal Shock Resistance, points 13 to 20
25 to 62

Alloy Composition

Carbon (C), % 0 to 0.080
0.15 to 0.4
Chromium (Cr), % 16.5 to 18.5
12 to 14
Iron (Fe), % 61.7 to 71
82.3 to 87.9
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 2.0 to 2.5
0 to 0.5
Nickel (Ni), % 10.5 to 13.5
0 to 0.75
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0 to 0.7
0

Comparable Variants