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SAE-AISI 1090 Steel vs. N08366 Stainless Steel

Both SAE-AISI 1090 steel and N08366 stainless steel are iron alloys. They have 47% 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 SAE-AISI 1090 steel and the bottom bar is N08366 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 280
180
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 11
34
Fatigue Strength, MPa 320 to 380
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
80
Shear Strength, MPa 470 to 570
390
Tensile Strength: Ultimate (UTS), MPa 790 to 950
590
Tensile Strength: Yield (Proof), MPa 520 to 610
240

Thermal Properties

Latent Heat of Fusion, J/g 240
310
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 50
13
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
33
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 1.4
6.2
Embodied Energy, MJ/kg 19
84
Embodied Water, L/kg 46
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 82 to 91
160
Resilience: Unit (Modulus of Resilience), kJ/m3 730 to 1000
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 28 to 34
20
Strength to Weight: Bending, points 24 to 27
19
Thermal Diffusivity, mm2/s 13
3.4
Thermal Shock Resistance, points 25 to 31
13

Alloy Composition

Carbon (C), % 0.85 to 1.0
0 to 0.035
Chromium (Cr), % 0
20 to 22
Iron (Fe), % 98 to 98.6
42.4 to 50.5
Manganese (Mn), % 0.6 to 0.9
0 to 2.0
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 0
23.5 to 25.5
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.030