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EN 1.4424 Stainless Steel vs. EN 1.5503 Steel

Both EN 1.4424 stainless steel and EN 1.5503 steel are iron alloys. They have 71% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4424 stainless steel and the bottom bar is EN 1.5503 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
120 to 160
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
12 to 17
Fatigue Strength, MPa 350 to 370
180 to 280
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 520
270 to 320
Tensile Strength: Ultimate (UTS), MPa 800
400 to 520
Tensile Strength: Yield (Proof), MPa 480 to 500
270 to 430

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 960
400
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 13
52
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 15
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.4
1.4
Embodied Energy, MJ/kg 46
18
Embodied Water, L/kg 140
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190 to 200
41 to 81
Resilience: Unit (Modulus of Resilience), kJ/m3 580 to 640
200 to 490
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29
14 to 19
Strength to Weight: Bending, points 25
15 to 18
Thermal Diffusivity, mm2/s 3.5
14
Thermal Shock Resistance, points 23
12 to 15

Alloy Composition

Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0 to 0.030
0.16 to 0.2
Chromium (Cr), % 18 to 19
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 68.6 to 72.4
98.4 to 99.239
Manganese (Mn), % 1.2 to 2.0
0.6 to 0.8
Molybdenum (Mo), % 2.5 to 3.0
0
Nickel (Ni), % 4.5 to 5.2
0
Nitrogen (N), % 0.050 to 0.1
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 1.4 to 2.0
0 to 0.3
Sulfur (S), % 0 to 0.015
0 to 0.025

Comparable Variants