SAE-AISI 81B45 Steel vs. EN 1.5662 Steel
Both SAE-AISI 81B45 steel and EN 1.5662 steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI 81B45 steel and the bottom bar is EN 1.5662 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 160 to 200 | |
220 to 230 |
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
190 |
Elongation at Break, % | 12 to 24 | |
20 |
Fatigue Strength, MPa | 250 to 350 | |
380 to 450 |
Poisson's Ratio | 0.29 | |
0.29 |
Shear Modulus, GPa | 73 | |
73 |
Shear Strength, MPa | 340 to 400 | |
460 to 470 |
Tensile Strength: Ultimate (UTS), MPa | 540 to 670 | |
740 to 750 |
Tensile Strength: Yield (Proof), MPa | 350 to 560 | |
550 to 660 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
250 |
Maximum Temperature: Mechanical, °C | 410 | |
430 |
Melting Completion (Liquidus), °C | 1460 | |
1460 |
Melting Onset (Solidus), °C | 1420 | |
1410 |
Specific Heat Capacity, J/kg-K | 470 | |
470 |
Thermal Expansion, µm/m-K | 12 | |
13 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 7.2 | |
8.7 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 | |
9.8 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 2.3 | |
7.5 |
Density, g/cm3 | 7.8 | |
8.0 |
Embodied Carbon, kg CO2/kg material | 1.5 | |
2.3 |
Embodied Energy, MJ/kg | 20 | |
31 |
Embodied Water, L/kg | 49 | |
63 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 77 to 110 | |
140 to 150 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 320 to 840 | |
810 to 1150 |
Stiffness to Weight: Axial, points | 13 | |
13 |
Stiffness to Weight: Bending, points | 24 | |
24 |
Strength to Weight: Axial, points | 19 to 24 | |
26 |
Strength to Weight: Bending, points | 19 to 22 | |
23 |
Thermal Shock Resistance, points | 17 to 21 | |
22 |
Alloy Composition
Boron (B), % | 0.00050 to 0.0030 | |
0 |
Carbon (C), % | 0.43 to 0.48 | |
0 to 0.1 |
Chromium (Cr), % | 0.35 to 0.55 | |
0 |
Iron (Fe), % | 97 to 98 | |
88.6 to 91.2 |
Manganese (Mn), % | 0.75 to 1.0 | |
0.3 to 0.8 |
Molybdenum (Mo), % | 0.080 to 0.15 | |
0 to 0.1 |
Nickel (Ni), % | 0.2 to 0.4 | |
8.5 to 10 |
Phosphorus (P), % | 0 to 0.035 | |
0 to 0.020 |
Silicon (Si), % | 0.15 to 0.35 | |
0 to 0.35 |
Sulfur (S), % | 0 to 0.040 | |
0 to 0.0050 |
Vanadium (V), % | 0 | |
0 to 0.050 |