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EN 1.4520 Stainless Steel vs. EN 1.4424 Stainless Steel

Both EN 1.4520 stainless steel and EN 1.4424 stainless steel are iron alloys. They have 88% 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 1.4520 stainless steel and the bottom bar is EN 1.4424 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
230
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 26
28
Fatigue Strength, MPa 160
350 to 370
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Shear Strength, MPa 310
520
Tensile Strength: Ultimate (UTS), MPa 480
800
Tensile Strength: Yield (Proof), MPa 220
480 to 500

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 500
420
Maximum Temperature: Mechanical, °C 870
960
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 20
13
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
15
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.2
3.4
Embodied Energy, MJ/kg 32
46
Embodied Water, L/kg 120
140

Common Calculations

PREN (Pitting Resistance) 17
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
190 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 120
580 to 640
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
29
Strength to Weight: Bending, points 18
25
Thermal Diffusivity, mm2/s 5.4
3.5
Thermal Shock Resistance, points 17
23

Alloy Composition

Carbon (C), % 0 to 0.025
0 to 0.030
Chromium (Cr), % 16 to 18
18 to 19
Iron (Fe), % 80.1 to 83.9
68.6 to 72.4
Manganese (Mn), % 0 to 0.5
1.2 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 0
4.5 to 5.2
Nitrogen (N), % 0 to 0.015
0.050 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 0.5
1.4 to 2.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0.15 to 0.8
0