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N08366 Stainless Steel vs. SAE-AISI A9 Steel

Both N08366 stainless steel and SAE-AISI A9 steel are iron alloys. They have 55% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is N08366 stainless steel and the bottom bar is SAE-AISI A9 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
74
Tensile Strength: Ultimate (UTS), MPa 590
770 to 2030

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 13
35
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
9.2

Otherwise Unclassified Properties

Base Metal Price, % relative 33
7.0
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 6.2
4.7
Embodied Energy, MJ/kg 84
70
Embodied Water, L/kg 200
82

Common Calculations

PREN (Pitting Resistance) 42
10
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
28 to 73
Strength to Weight: Bending, points 19
24 to 46
Thermal Diffusivity, mm2/s 3.4
9.6
Thermal Shock Resistance, points 13
25 to 66

Alloy Composition

Carbon (C), % 0 to 0.035
0.45 to 0.55
Chromium (Cr), % 20 to 22
4.8 to 5.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 42.4 to 50.5
87 to 90.5
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 6.0 to 7.0
1.3 to 1.8
Nickel (Ni), % 23.5 to 25.5
1.3 to 1.8
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
1.0 to 1.2
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0
0.8 to 1.4