SAE-AISI 4140 Steel vs. EN 1.7383 Steel
Both SAE-AISI 4140 steel and EN 1.7383 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 (2, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI 4140 steel and the bottom bar is EN 1.7383 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 200 to 310 | |
170 to 180 |
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
190 |
Elongation at Break, % | 11 to 26 | |
20 to 23 |
Fatigue Strength, MPa | 360 to 650 | |
210 to 270 |
Poisson's Ratio | 0.29 | |
0.29 |
Shear Modulus, GPa | 73 | |
74 |
Shear Strength, MPa | 410 to 660 | |
350 to 380 |
Tensile Strength: Ultimate (UTS), MPa | 690 to 1080 | |
560 to 610 |
Tensile Strength: Yield (Proof), MPa | 590 to 990 | |
300 to 400 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
260 |
Maximum Temperature: Mechanical, °C | 420 | |
460 |
Melting Completion (Liquidus), °C | 1460 | |
1470 |
Melting Onset (Solidus), °C | 1420 | |
1430 |
Specific Heat Capacity, J/kg-K | 470 | |
470 |
Thermal Conductivity, W/m-K | 43 | |
39 |
Thermal Expansion, µm/m-K | 13 | |
13 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
7.7 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.4 | |
8.8 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 2.4 | |
3.9 |
Density, g/cm3 | 7.8 | |
7.9 |
Embodied Carbon, kg CO2/kg material | 1.5 | |
1.8 |
Embodied Energy, MJ/kg | 20 | |
23 |
Embodied Water, L/kg | 51 | |
59 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 74 to 180 | |
110 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 920 to 2590 | |
240 to 420 |
Stiffness to Weight: Axial, points | 13 | |
13 |
Stiffness to Weight: Bending, points | 24 | |
24 |
Strength to Weight: Axial, points | 25 to 38 | |
20 to 22 |
Strength to Weight: Bending, points | 22 to 30 | |
19 to 20 |
Thermal Diffusivity, mm2/s | 12 | |
11 |
Thermal Shock Resistance, points | 20 to 32 | |
16 to 18 |
Alloy Composition
Aluminum (Al), % | 0 | |
0 to 0.040 |
Carbon (C), % | 0.38 to 0.43 | |
0.080 to 0.15 |
Chromium (Cr), % | 0.8 to 1.1 | |
2.0 to 2.5 |
Copper (Cu), % | 0 | |
0 to 0.3 |
Iron (Fe), % | 96.8 to 97.8 | |
94.3 to 96.6 |
Manganese (Mn), % | 0.75 to 1.0 | |
0.4 to 0.8 |
Molybdenum (Mo), % | 0.15 to 0.25 | |
0.9 to 1.1 |
Nickel (Ni), % | 0 | |
0 to 0.3 |
Phosphorus (P), % | 0 to 0.035 | |
0 to 0.025 |
Silicon (Si), % | 0.15 to 0.35 | |
0 to 0.5 |
Sulfur (S), % | 0 to 0.040 | |
0 to 0.010 |