SAE-AISI P2 Steel vs. EN 1.7221 Steel
Both SAE-AISI P2 steel and EN 1.7221 steel are iron alloys. Their average alloy composition is basically identical. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI P2 steel and the bottom bar is EN 1.7221 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 | 330 to 1980 | |
650 to 780 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
250 |
Melting Completion (Liquidus), °C | 1460 | |
1460 |
Melting Onset (Solidus), °C | 1420 | |
1420 |
Specific Heat Capacity, J/kg-K | 470 | |
470 |
Thermal Conductivity, W/m-K | 46 | |
44 |
Thermal Expansion, µm/m-K | 12 | |
13 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
7.3 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 | |
8.4 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 2.7 | |
2.4 |
Density, g/cm3 | 7.9 | |
7.8 |
Embodied Carbon, kg CO2/kg material | 1.5 | |
1.5 |
Embodied Energy, MJ/kg | 20 | |
20 |
Embodied Water, L/kg | 51 | |
51 |
Common Calculations
Stiffness to Weight: Axial, points | 13 | |
13 |
Stiffness to Weight: Bending, points | 24 | |
24 |
Strength to Weight: Axial, points | 12 to 70 | |
23 to 27 |
Strength to Weight: Bending, points | 14 to 45 | |
21 to 24 |
Thermal Diffusivity, mm2/s | 12 | |
12 |
Thermal Shock Resistance, points | 11 to 65 | |
19 to 23 |
Alloy Composition
Carbon (C), % | 0 to 0.1 | |
0.22 to 0.29 |
Chromium (Cr), % | 0.75 to 1.3 | |
0.8 to 1.2 |
Copper (Cu), % | 0 to 0.25 | |
0 |
Iron (Fe), % | 96.6 to 98.8 | |
96.8 to 98.3 |
Manganese (Mn), % | 0.1 to 0.4 | |
0.5 to 0.8 |
Molybdenum (Mo), % | 0.15 to 0.4 | |
0.15 to 0.3 |
Nickel (Ni), % | 0.1 to 0.5 | |
0 |
Phosphorus (P), % | 0 to 0.030 | |
0 to 0.025 |
Silicon (Si), % | 0.1 to 0.4 | |
0 to 0.6 |
Sulfur (S), % | 0 to 0.030 | |
0 to 0.030 |