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AISI 405 Stainless Steel vs. S82122 Stainless Steel

Both AISI 405 stainless steel and S82122 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 86% of their average alloy composition in common. There are 33 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 405 stainless steel and the bottom bar is S82122 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
260
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22
34
Fatigue Strength, MPa 130
360
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
78
Shear Strength, MPa 300
460
Tensile Strength: Ultimate (UTS), MPa 470
680
Tensile Strength: Yield (Proof), MPa 200
450

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 390
430
Maximum Temperature: Mechanical, °C 820
990
Melting Completion (Liquidus), °C 1530
1420
Melting Onset (Solidus), °C 1480
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
15
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
12
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.0
2.6
Embodied Energy, MJ/kg 28
37
Embodied Water, L/kg 100
150

Common Calculations

PREN (Pitting Resistance) 13
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 84
210
Resilience: Unit (Modulus of Resilience), kJ/m3 100
510
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
25
Strength to Weight: Bending, points 17
22
Thermal Diffusivity, mm2/s 8.1
4.0
Thermal Shock Resistance, points 16
19

Alloy Composition

Aluminum (Al), % 0.1 to 0.3
0
Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 11.5 to 14.5
20.5 to 21.5
Copper (Cu), % 0
0.5 to 1.5
Iron (Fe), % 82.5 to 88.4
68.9 to 75.4
Manganese (Mn), % 0 to 1.0
2.0 to 4.0
Molybdenum (Mo), % 0
0 to 0.6
Nickel (Ni), % 0 to 0.6
1.5 to 2.5
Nitrogen (N), % 0
0.15 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.020