SAE-AISI 8740 Steel vs. EN 1.5510 Steel
Both SAE-AISI 8740 steel and EN 1.5510 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI 8740 steel and the bottom bar is EN 1.5510 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 170 to 200 | |
130 to 190 |
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
190 |
Elongation at Break, % | 11 to 23 | |
11 to 21 |
Fatigue Strength, MPa | 270 to 350 | |
220 to 330 |
Poisson's Ratio | 0.29 | |
0.29 |
Shear Modulus, GPa | 73 | |
73 |
Shear Strength, MPa | 370 to 400 | |
310 to 380 |
Tensile Strength: Ultimate (UTS), MPa | 580 to 670 | |
450 to 1600 |
Tensile Strength: Yield (Proof), MPa | 380 to 570 | |
310 to 520 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
250 |
Maximum Temperature: Mechanical, °C | 410 | |
400 |
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 | 39 | |
51 |
Thermal Expansion, µm/m-K | 13 | |
13 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
7.1 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.4 | |
8.2 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 2.6 | |
1.9 |
Density, g/cm3 | 7.8 | |
7.8 |
Embodied Carbon, kg CO2/kg material | 1.5 | |
1.4 |
Embodied Energy, MJ/kg | 20 | |
19 |
Embodied Water, L/kg | 50 | |
47 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 71 to 120 | |
46 to 260 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 390 to 850 | |
260 to 710 |
Stiffness to Weight: Axial, points | 13 | |
13 |
Stiffness to Weight: Bending, points | 24 | |
24 |
Strength to Weight: Axial, points | 20 to 24 | |
16 to 57 |
Strength to Weight: Bending, points | 20 to 22 | |
17 to 39 |
Thermal Diffusivity, mm2/s | 10 | |
14 |
Thermal Shock Resistance, points | 17 to 20 | |
13 to 47 |
Alloy Composition
Boron (B), % | 0 | |
0.00080 to 0.0050 |
Carbon (C), % | 0.38 to 0.43 | |
0.25 to 0.3 |
Chromium (Cr), % | 0.4 to 0.6 | |
0 to 0.3 |
Copper (Cu), % | 0 | |
0 to 0.25 |
Iron (Fe), % | 96.5 to 97.7 | |
97.9 to 99.149 |
Manganese (Mn), % | 0.75 to 1.0 | |
0.6 to 0.9 |
Molybdenum (Mo), % | 0.2 to 0.3 | |
0 |
Nickel (Ni), % | 0.4 to 0.7 | |
0 |
Phosphorus (P), % | 0 to 0.035 | |
0 to 0.025 |
Silicon (Si), % | 0.15 to 0.35 | |
0 to 0.3 |
Sulfur (S), % | 0 to 0.040 | |
0 to 0.025 |