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AISI 440B Stainless Steel vs. EN 1.6511 Steel

Both AISI 440B stainless steel and EN 1.6511 steel are iron alloys. They have 83% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, 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 1.6511 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 3.0 to 18
12
Fatigue Strength, MPa 260 to 850
480
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 460 to 1110
600
Tensile Strength: Ultimate (UTS), MPa 740 to 1930
990
Tensile Strength: Yield (Proof), MPa 430 to 1860
770

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 870
430
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
36
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
3.1
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.6
Embodied Energy, MJ/kg 31
21
Embodied Water, L/kg 120
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57 to 110
110
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27 to 70
35
Strength to Weight: Bending, points 24 to 45
28
Thermal Diffusivity, mm2/s 6.1
9.9
Thermal Shock Resistance, points 27 to 70
29

Alloy Composition

Carbon (C), % 0.75 to 1.0
0.32 to 0.4
Chromium (Cr), % 16 to 18
0.9 to 1.2
Iron (Fe), % 78.2 to 83.3
95.6 to 97.2
Manganese (Mn), % 0 to 1.0
0.5 to 0.8
Molybdenum (Mo), % 0 to 0.75
0.15 to 0.3
Nickel (Ni), % 0
0.9 to 1.2
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.035