EN 1.4005 +A Steel vs. EN 1.4123 +A Steel
Both EN 1.4005 +A steel and EN 1.4123 +A steel are iron alloys. Both are furnished in the annealed condition. They have a very high 95% of their average alloy composition in common.
For each property being compared, the top bar is EN 1.4005 +A steel and the bottom bar is EN 1.4123 +A steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 | |
| 250 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 21 | |
| 21 |
| Fatigue Strength, MPa | 240 | |
| 300 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 76 | |
| 77 |
| Shear Strength, MPa | 390 | |
| 510 |
| Tensile Strength: Ultimate (UTS), MPa | 630 | |
| 810 |
| Tensile Strength: Yield (Proof), MPa | 370 | |
| 460 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 390 | |
| 390 |
| Maximum Temperature: Mechanical, °C | 760 | |
| 840 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1450 |
| Melting Onset (Solidus), °C | 1400 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 30 | |
| 23 |
| Thermal Expansion, µm/m-K | 10 | |
| 10 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.9 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.3 | |
| 2.8 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 7.0 | |
| 10 |
| Density, g/cm3 | 7.7 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 2.0 | |
| 4.2 |
| Embodied Energy, MJ/kg | 28 | |
| 62 |
| Embodied Water, L/kg | 100 | |
| 120 |
Common Calculations
| PREN (Pitting Resistance) | 14 | |
| 24 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 | |
| 150 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 350 | |
| 540 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 23 | |
| 29 |
| Strength to Weight: Bending, points | 21 | |
| 25 |
| Thermal Diffusivity, mm2/s | 8.1 | |
| 6.3 |
| Thermal Shock Resistance, points | 23 | |
| 29 |
Alloy Composition
| Carbon (C), % | 0.060 to 0.15 | |
| 0.35 to 0.5 |
| Chromium (Cr), % | 12 to 14 | |
| 14 to 16.5 |
| Iron (Fe), % | 82.4 to 87.8 | |
| 76.7 to 84.6 |
| Manganese (Mn), % | 0 to 1.5 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 to 0.6 | |
| 1.0 to 2.5 |
| Nickel (Ni), % | 0 | |
| 0 to 0.5 |
| Nitrogen (N), % | 0 | |
| 0.1 to 0.3 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0.15 to 0.35 | |
| 0 to 0.030 |
| Vanadium (V), % | 0 | |
| 0 to 1.5 |