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SAE-AISI P3 Steel vs. N08330 Stainless Steel

Both SAE-AISI P3 steel and N08330 stainless steel are iron alloys. They have 46% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI P3 steel and the bottom bar is N08330 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 410 to 1980
550

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1420
1340
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 46
12
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
32
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 1.5
5.4
Embodied Energy, MJ/kg 20
77
Embodied Water, L/kg 50
190

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 15 to 70
19
Strength to Weight: Bending, points 16 to 44
18
Thermal Diffusivity, mm2/s 12
3.1
Thermal Shock Resistance, points 14 to 65
13

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.080
Chromium (Cr), % 0.4 to 0.75
17 to 20
Copper (Cu), % 0 to 0.25
0 to 1.0
Iron (Fe), % 96.3 to 98.4
38.3 to 48.3
Lead (Pb), % 0
0 to 0.0050
Manganese (Mn), % 0.2 to 0.6
0 to 2.0
Nickel (Ni), % 1.0 to 1.5
34 to 37
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.4
0.75 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tin (Sn), % 0
0 to 0.025