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AISI 317L Stainless Steel vs. SAE-AISI P4 Steel

Both AISI 317L stainless steel and SAE-AISI P4 steel are iron alloys. They have 69% 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 AISI 317L stainless steel and the bottom bar is SAE-AISI P4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 82
74
Tensile Strength: Ultimate (UTS), MPa 550
390 to 1980

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 14
41
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 21
4.4
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.3
1.8
Embodied Energy, MJ/kg 59
23
Embodied Water, L/kg 160
68

Common Calculations

PREN (Pitting Resistance) 31
7.0
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
14 to 70
Strength to Weight: Bending, points 19
15 to 45
Thermal Diffusivity, mm2/s 3.8
11
Thermal Shock Resistance, points 12
13 to 64

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.12
Chromium (Cr), % 18 to 20
4.0 to 5.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 58 to 68
92.3 to 95.3
Manganese (Mn), % 0 to 2.0
0.2 to 0.6
Molybdenum (Mo), % 3.0 to 4.0
0.4 to 1.0
Nickel (Ni), % 11 to 15
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.75
0.1 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030