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AISI 440B Stainless Steel vs. EN 1.5521 Steel

Both AISI 440B stainless steel and EN 1.5521 steel are iron alloys. They have 82% 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 AISI 440B stainless steel and the bottom bar is EN 1.5521 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 3.0 to 18
11 to 21
Fatigue Strength, MPa 260 to 850
210 to 310
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 460 to 1110
310 to 360
Tensile Strength: Ultimate (UTS), MPa 740 to 1930
430 to 1390
Tensile Strength: Yield (Proof), MPa 430 to 1860
300 to 490

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 870
400
Melting Completion (Liquidus), °C 1480
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 23
51
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
1.9
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.4
Embodied Energy, MJ/kg 31
19
Embodied Water, L/kg 120
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57 to 110
44 to 230
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27 to 70
15 to 49
Strength to Weight: Bending, points 24 to 45
16 to 35
Thermal Diffusivity, mm2/s 6.1
14
Thermal Shock Resistance, points 27 to 70
13 to 41

Alloy Composition

Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0.75 to 1.0
0.16 to 0.2
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 78.2 to 83.3
98 to 98.9
Manganese (Mn), % 0 to 1.0
0.9 to 1.2
Molybdenum (Mo), % 0 to 0.75
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.3
Sulfur (S), % 0 to 0.015
0 to 0.025

Comparable Variants