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EN 1.8509 Steel vs. SAE-AISI P5 Steel

Both EN 1.8509 steel and SAE-AISI P5 steel are iron alloys. They have a very high 99% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.8509 steel and the bottom bar is SAE-AISI P5 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 1130
370 to 1980

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 39
45
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
2.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.5
Embodied Energy, MJ/kg 22
20
Embodied Water, L/kg 65
56

Common Calculations

PREN (Pitting Resistance) 2.6
2.3
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 40
13 to 70
Strength to Weight: Bending, points 31
15 to 45
Thermal Diffusivity, mm2/s 10
12
Thermal Shock Resistance, points 33
12 to 65

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.38 to 0.45
0 to 0.1
Chromium (Cr), % 1.5 to 1.8
2.0 to 2.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 95.5 to 97.1
95.7 to 97.8
Manganese (Mn), % 0.4 to 0.7
0.2 to 0.6
Molybdenum (Mo), % 0.2 to 0.35
0
Nickel (Ni), % 0
0 to 0.35
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.035
0 to 0.030