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EN 1.4020 Stainless Steel vs. EN 1.4424 Stainless Steel

Both EN 1.4020 stainless steel and EN 1.4424 stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4020 stainless steel and the bottom bar is EN 1.4424 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 340
230
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 13 to 34
28
Fatigue Strength, MPa 340 to 540
350 to 370
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Shear Strength, MPa 510 to 680
520
Tensile Strength: Ultimate (UTS), MPa 770 to 1130
800
Tensile Strength: Yield (Proof), MPa 430 to 950
480 to 500

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 890
960
Melting Completion (Liquidus), °C 1390
1430
Melting Onset (Solidus), °C 1350
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 11
15
Density, g/cm3 7.6
7.7
Embodied Carbon, kg CO2/kg material 2.5
3.4
Embodied Energy, MJ/kg 37
46
Embodied Water, L/kg 150
140

Common Calculations

PREN (Pitting Resistance) 23
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 220
190 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 2290
580 to 640
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 41
29
Strength to Weight: Bending, points 25 to 32
25
Thermal Shock Resistance, points 16 to 23
23

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 16.5 to 19
18 to 19
Iron (Fe), % 62.8 to 71.8
68.6 to 72.4
Manganese (Mn), % 11 to 14
1.2 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 0.5 to 2.5
4.5 to 5.2
Nitrogen (N), % 0.2 to 0.45
0.050 to 0.1
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
1.4 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.015