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AISI 440B Stainless Steel vs. EN 1.4477 Stainless Steel

Both AISI 440B stainless steel and EN 1.4477 stainless steel are iron alloys. They have 78% 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 1.4477 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 3.0 to 18
22 to 23
Fatigue Strength, MPa 260 to 850
420 to 490
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
81
Shear Strength, MPa 460 to 1110
550 to 580
Tensile Strength: Ultimate (UTS), MPa 740 to 1930
880 to 930
Tensile Strength: Yield (Proof), MPa 430 to 1860
620 to 730

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
460
Maximum Temperature: Mechanical, °C 870
1100
Melting Completion (Liquidus), °C 1480
1430
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 23
13
Thermal Expansion, µm/m-K 10
13

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
7.7
Embodied Carbon, kg CO2/kg material 2.2
3.7
Embodied Energy, MJ/kg 31
52
Embodied Water, L/kg 120
190

Common Calculations

PREN (Pitting Resistance) 18
41
Resilience: Ultimate (Unit Rupture Work), MJ/m3 57 to 110
180 to 190
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 70
31 to 33
Strength to Weight: Bending, points 24 to 45
26 to 27
Thermal Diffusivity, mm2/s 6.1
3.5
Thermal Shock Resistance, points 27 to 70
23 to 25

Alloy Composition

Carbon (C), % 0.75 to 1.0
0 to 0.030
Chromium (Cr), % 16 to 18
28 to 30
Copper (Cu), % 0
0 to 0.8
Iron (Fe), % 78.2 to 83.3
56.6 to 63.6
Manganese (Mn), % 0 to 1.0
0.8 to 1.5
Molybdenum (Mo), % 0 to 0.75
1.5 to 2.6
Nickel (Ni), % 0
5.8 to 7.5
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.015