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EN 1.4404 Stainless Steel vs. EN 1.5501 Steel

Both EN 1.4404 stainless steel and EN 1.5501 steel are iron alloys. They have 68% 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 1.4404 stainless steel and the bottom bar is EN 1.5501 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
120 to 150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 43
12 to 17
Fatigue Strength, MPa 220 to 320
180 to 270
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 420 to 550
270 to 310
Tensile Strength: Ultimate (UTS), MPa 600 to 900
390 to 510
Tensile Strength: Yield (Proof), MPa 240 to 570
260 to 420

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 950
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
52
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 19
1.8
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 3.8
1.4
Embodied Energy, MJ/kg 52
18
Embodied Water, L/kg 150
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 210
40 to 83
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 800
190 to 460
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 32
14 to 18
Strength to Weight: Bending, points 20 to 26
15 to 18
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 13 to 20
11 to 15

Alloy Composition

Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0 to 0.030
0.13 to 0.16
Chromium (Cr), % 16.5 to 18.5
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 62.8 to 71.5
98.4 to 99.269
Manganese (Mn), % 0 to 2.0
0.6 to 0.8
Molybdenum (Mo), % 2.0 to 2.5
0
Nickel (Ni), % 10 to 13
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.3
Sulfur (S), % 0 to 0.015
0 to 0.025