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AISI 440B Stainless Steel vs. EN 1.4305 Stainless Steel

Both AISI 440B stainless steel and EN 1.4305 stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 1.4305 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 3.0 to 18
14 to 40
Fatigue Strength, MPa 260 to 850
190 to 330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 460 to 1110
420 to 550
Tensile Strength: Ultimate (UTS), MPa 740 to 1930
610 to 900
Tensile Strength: Yield (Proof), MPa 430 to 1860
220 to 570

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 870
930
Melting Completion (Liquidus), °C 1480
1420
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 23
15
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
15
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.2
3.0
Embodied Energy, MJ/kg 31
42
Embodied Water, L/kg 120
140

Common Calculations

PREN (Pitting Resistance) 18
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 57 to 110
110 to 190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 70
22 to 32
Strength to Weight: Bending, points 24 to 45
20 to 27
Thermal Diffusivity, mm2/s 6.1
4.0
Thermal Shock Resistance, points 27 to 70
14 to 20

Alloy Composition

Carbon (C), % 0.75 to 1.0
0 to 0.1
Chromium (Cr), % 16 to 18
17 to 19
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 78.2 to 83.3
66.4 to 74.9
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 0
8.0 to 10
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0.15 to 0.35

Comparable Variants