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SAE-AISI 52100 Steel vs. S82122 Stainless Steel

Both SAE-AISI 52100 steel and S82122 stainless steel are iron alloys. They have 74% 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 SAE-AISI 52100 steel and the bottom bar is S82122 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 210
260
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 10 to 20
34
Fatigue Strength, MPa 250 to 340
360
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
78
Shear Strength, MPa 370 to 420
460
Tensile Strength: Ultimate (UTS), MPa 590 to 2010
680
Tensile Strength: Yield (Proof), MPa 360 to 560
450

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 430
990
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 47
15
Thermal Expansion, µm/m-K 12 to 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
12
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.5
2.6
Embodied Energy, MJ/kg 20
37
Embodied Water, L/kg 51
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54 to 310
210
Resilience: Unit (Modulus of Resilience), kJ/m3 350 to 840
510
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21 to 72
25
Strength to Weight: Bending, points 20 to 45
22
Thermal Diffusivity, mm2/s 13
4.0
Thermal Shock Resistance, points 19 to 61
19

Alloy Composition

Carbon (C), % 0.93 to 1.1
0 to 0.030
Chromium (Cr), % 1.4 to 1.6
20.5 to 21.5
Copper (Cu), % 0
0.5 to 1.5
Iron (Fe), % 96.5 to 97.3
68.9 to 75.4
Manganese (Mn), % 0.25 to 0.45
2.0 to 4.0
Molybdenum (Mo), % 0
0 to 0.6
Nickel (Ni), % 0
1.5 to 2.5
Nitrogen (N), % 0
0.15 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.020