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AISI 440B Stainless Steel vs. EN 1.4615 Stainless Steel

Both AISI 440B stainless steel and EN 1.4615 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 1.4615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 3.0 to 18
50
Fatigue Strength, MPa 260 to 850
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 460 to 1110
360
Tensile Strength: Ultimate (UTS), MPa 740 to 1930
500
Tensile Strength: Yield (Proof), MPa 430 to 1860
200

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 390
400
Maximum Temperature: Mechanical, °C 870
840
Melting Completion (Liquidus), °C 1480
1400
Melting Onset (Solidus), °C 1370
1360
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 23
15
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
13
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.2
2.8
Embodied Energy, MJ/kg 31
40
Embodied Water, L/kg 120
140

Common Calculations

PREN (Pitting Resistance) 18
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 57 to 110
200
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 70
18
Strength to Weight: Bending, points 24 to 45
18
Thermal Diffusivity, mm2/s 6.1
4.1
Thermal Shock Resistance, points 27 to 70
11

Alloy Composition

Carbon (C), % 0.75 to 1.0
0 to 0.030
Chromium (Cr), % 16 to 18
14 to 16
Copper (Cu), % 0
2.0 to 4.0
Iron (Fe), % 78.2 to 83.3
63.1 to 72.5
Manganese (Mn), % 0 to 1.0
7.0 to 9.0
Molybdenum (Mo), % 0 to 0.75
0 to 0.8
Nickel (Ni), % 0
4.5 to 6.0
Nitrogen (N), % 0
0.020 to 0.060
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.010