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SAE-AISI P5 Steel vs. AISI 422 Stainless Steel

Both SAE-AISI P5 steel and AISI 422 stainless steel are iron alloys. They have 87% of their average alloy composition in common. There are 24 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 P5 steel and the bottom bar is AISI 422 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 370 to 1980
910 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1420
1470
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 45
24
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
4.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
5.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
11
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
3.1
Embodied Energy, MJ/kg 20
44
Embodied Water, L/kg 56
100

Common Calculations

PREN (Pitting Resistance) 2.3
17
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 13 to 70
32 to 38
Strength to Weight: Bending, points 15 to 45
26 to 30
Thermal Diffusivity, mm2/s 12
6.4
Thermal Shock Resistance, points 12 to 65
33 to 39

Alloy Composition

Carbon (C), % 0 to 0.1
0.2 to 0.25
Chromium (Cr), % 2.0 to 2.5
11 to 12.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 95.7 to 97.8
81.9 to 85.8
Manganese (Mn), % 0.2 to 0.6
0.5 to 1.0
Molybdenum (Mo), % 0
0.9 to 1.3
Nickel (Ni), % 0 to 0.35
0.5 to 1.0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 0
0.9 to 1.3
Vanadium (V), % 0
0.2 to 0.3

Comparable Variants