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AISI 418 Stainless Steel vs. S82011 Stainless Steel

Both AISI 418 stainless steel and S82011 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 33 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 418 stainless steel and the bottom bar is S82011 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 330
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
34
Fatigue Strength, MPa 520
410
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
78
Shear Strength, MPa 680
490
Tensile Strength: Ultimate (UTS), MPa 1100
730
Tensile Strength: Yield (Proof), MPa 850
510

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 390
430
Maximum Temperature: Mechanical, °C 770
1010
Melting Completion (Liquidus), °C 1500
1420
Melting Onset (Solidus), °C 1460
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 25
15
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 15
12
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 2.9
2.6
Embodied Energy, MJ/kg 41
37
Embodied Water, L/kg 110
150

Common Calculations

PREN (Pitting Resistance) 19
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
220
Resilience: Unit (Modulus of Resilience), kJ/m3 1830
660
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 38
27
Strength to Weight: Bending, points 29
24
Thermal Diffusivity, mm2/s 6.7
4.0
Thermal Shock Resistance, points 40
20

Alloy Composition

Carbon (C), % 0.15 to 0.2
0 to 0.030
Chromium (Cr), % 12 to 14
20.5 to 23.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 78.5 to 83.6
68.6 to 76.3
Manganese (Mn), % 0 to 0.5
2.0 to 3.0
Molybdenum (Mo), % 0 to 0.5
0.1 to 1.0
Nickel (Ni), % 1.8 to 2.2
1.0 to 2.0
Nitrogen (N), % 0
0.15 to 0.27
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 2.5 to 3.5
0