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Annealed AISI 304L vs. Annealed SAE-AISI P5

Both annealed AISI 304L and annealed SAE-AISI P5 are iron alloys. Both are furnished in the annealed condition. They have 73% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is annealed AISI 304L and the bottom bar is annealed SAE-AISI P5.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
110
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 42
22
Fatigue Strength, MPa 170
130
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 370
240
Tensile Strength: Ultimate (UTS), MPa 540
370
Tensile Strength: Yield (Proof), MPa 190
190

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
45
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 16
2.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.1
1.5
Embodied Energy, MJ/kg 44
20
Embodied Water, L/kg 150
56

Common Calculations

PREN (Pitting Resistance) 20
2.3
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
68
Resilience: Unit (Modulus of Resilience), kJ/m3 94
91
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
13
Strength to Weight: Bending, points 19
15
Thermal Diffusivity, mm2/s 4.2
12
Thermal Shock Resistance, points 12
12

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 18 to 20
2.0 to 2.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 65 to 74
95.7 to 97.8
Manganese (Mn), % 0 to 2.0
0.2 to 0.6
Nickel (Ni), % 8.0 to 12
0 to 0.35
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.75
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030