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AISI 440B Stainless Steel vs. EN 1.4910 Stainless Steel

Both AISI 440B stainless steel and EN 1.4910 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 1.4910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 3.0 to 18
41
Fatigue Strength, MPa 260 to 850
250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Shear Strength, MPa 460 to 1110
450
Tensile Strength: Ultimate (UTS), MPa 740 to 1930
650
Tensile Strength: Yield (Proof), MPa 430 to 1860
290

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 870
950
Melting Completion (Liquidus), °C 1480
1440
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 23
16
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
20
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.2
3.9
Embodied Energy, MJ/kg 31
54
Embodied Water, L/kg 120
150

Common Calculations

PREN (Pitting Resistance) 18
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 57 to 110
220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 70
23
Strength to Weight: Bending, points 24 to 45
21
Thermal Diffusivity, mm2/s 6.1
4.3
Thermal Shock Resistance, points 27 to 70
14

Alloy Composition

Boron (B), % 0
0.0015 to 0.0050
Carbon (C), % 0.75 to 1.0
0 to 0.040
Chromium (Cr), % 16 to 18
16 to 18
Iron (Fe), % 78.2 to 83.3
62 to 69.9
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.75
2.0 to 3.0
Nickel (Ni), % 0
12 to 14
Nitrogen (N), % 0
0.1 to 0.18
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.015