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EN 1.4520 Stainless Steel vs. EN 1.4571 Stainless Steel

Both EN 1.4520 stainless steel and EN 1.4571 stainless steel are iron alloys. They have 84% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4520 stainless steel and the bottom bar is EN 1.4571 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190 to 270
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 26
14 to 40
Fatigue Strength, MPa 160
200 to 330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Shear Strength, MPa 310
410 to 550
Tensile Strength: Ultimate (UTS), MPa 480
600 to 900
Tensile Strength: Yield (Proof), MPa 220
230 to 570

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 500
480
Maximum Temperature: Mechanical, °C 870
950
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 20
15
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
19
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.2
3.9
Embodied Energy, MJ/kg 32
54
Embodied Water, L/kg 120
150

Common Calculations

PREN (Pitting Resistance) 17
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
110 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 120
130 to 820
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
21 to 32
Strength to Weight: Bending, points 18
20 to 26
Thermal Diffusivity, mm2/s 5.4
4.0
Thermal Shock Resistance, points 17
13 to 20

Alloy Composition

Carbon (C), % 0 to 0.025
0 to 0.080
Chromium (Cr), % 16 to 18
16.5 to 18.5
Iron (Fe), % 80.1 to 83.9
61.7 to 71
Manganese (Mn), % 0 to 0.5
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 2.5
Nickel (Ni), % 0
10.5 to 13.5
Nitrogen (N), % 0 to 0.015
0
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0.15 to 0.8
0 to 0.7