EN 1.7386 Steel vs. EN 1.7703 Steel
Both EN 1.7386 steel and EN 1.7703 steel are iron alloys. They have a moderately high 93% of their average alloy composition in common.
For each property being compared, the top bar is EN 1.7386 steel and the bottom bar is EN 1.7703 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 170 to 200 | |
| 200 to 210 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 18 to 21 | |
| 20 |
| Fatigue Strength, MPa | 170 to 290 | |
| 320 to 340 |
| Impact Strength: V-Notched Charpy, J | 38 | |
| 46 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 75 | |
| 74 |
| Shear Strength, MPa | 340 to 410 | |
| 420 to 430 |
| Tensile Strength: Ultimate (UTS), MPa | 550 to 670 | |
| 670 to 690 |
| Tensile Strength: Yield (Proof), MPa | 240 to 440 | |
| 460 to 500 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 600 | |
| 460 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1470 |
| Melting Onset (Solidus), °C | 1410 | |
| 1430 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 26 | |
| 39 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 9.0 | |
| 7.6 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 10 | |
| 8.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 6.5 | |
| 4.2 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 2.0 | |
| 2.5 |
| Embodied Energy, MJ/kg | 28 | |
| 35 |
| Embodied Water, L/kg | 88 | |
| 61 |
Common Calculations
| PREN (Pitting Resistance) | 12 | |
| 5.6 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 92 to 110 | |
| 120 to 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 150 to 490 | |
| 570 to 650 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 20 to 24 | |
| 24 |
| Strength to Weight: Bending, points | 19 to 22 | |
| 22 |
| Thermal Diffusivity, mm2/s | 6.9 | |
| 11 |
| Thermal Shock Resistance, points | 15 to 18 | |
| 19 to 20 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.040 | |
| 0 |
| Carbon (C), % | 0.080 to 0.15 | |
| 0.11 to 0.15 |
| Chromium (Cr), % | 8.0 to 10 | |
| 2.0 to 2.5 |
| Copper (Cu), % | 0 to 0.3 | |
| 0 to 0.2 |
| Iron (Fe), % | 86.8 to 90.5 | |
| 94.6 to 96.4 |
| Manganese (Mn), % | 0.3 to 0.6 | |
| 0.3 to 0.6 |
| Molybdenum (Mo), % | 0.9 to 1.1 | |
| 0.9 to 1.1 |
| Nickel (Ni), % | 0 | |
| 0 to 0.25 |
| Niobium (Nb), % | 0 | |
| 0 to 0.070 |
| Nitrogen (N), % | 0 | |
| 0 to 0.012 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.015 |
| Silicon (Si), % | 0.25 to 1.0 | |
| 0 to 0.1 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.0050 |
| Titanium (Ti), % | 0 | |
| 0 to 0.030 |
| Vanadium (V), % | 0 | |
| 0.25 to 0.35 |