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AISI 440B Stainless Steel vs. S34565 Stainless Steel

Both AISI 440B stainless steel and S34565 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AISI 440B stainless steel and the bottom bar is S34565 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 3.0 to 18
39
Fatigue Strength, MPa 260 to 850
400
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
80
Shear Strength, MPa 460 to 1110
610
Tensile Strength: Ultimate (UTS), MPa 740 to 1930
900
Tensile Strength: Yield (Proof), MPa 430 to 1860
470

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 390
450
Maximum Temperature: Mechanical, °C 870
1100
Melting Completion (Liquidus), °C 1480
1420
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 23
12
Thermal Expansion, µm/m-K 10
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
28
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.2
5.3
Embodied Energy, MJ/kg 31
73
Embodied Water, L/kg 120
210

Common Calculations

PREN (Pitting Resistance) 18
47
Resilience: Ultimate (Unit Rupture Work), MJ/m3 57 to 110
300
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 70
32
Strength to Weight: Bending, points 24 to 45
26
Thermal Diffusivity, mm2/s 6.1
3.2
Thermal Shock Resistance, points 27 to 70
22

Alloy Composition

Carbon (C), % 0.75 to 1.0
0 to 0.030
Chromium (Cr), % 16 to 18
23 to 25
Iron (Fe), % 78.2 to 83.3
43.2 to 51.6
Manganese (Mn), % 0 to 1.0
5.0 to 7.0
Molybdenum (Mo), % 0 to 0.75
4.0 to 5.0
Nickel (Ni), % 0
16 to 18
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0
0.4 to 0.6
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.010