Solution Annealed ASTM B540 vs. EN 1.4020 +AT Steel
Solution annealed ASTM B540 belongs to the otherwise unclassified metals classification, while EN 1.4020 +AT steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is solution annealed ASTM B540 and the bottom bar is EN 1.4020 +AT steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 200 |
| Elongation at Break, % | 14 | |
| 34 |
| Fatigue Strength, MPa | 350 | |
| 340 |
| Poisson's Ratio | 0.38 | |
| 0.28 |
| Shear Modulus, GPa | 39 | |
| 77 |
| Shear Strength, MPa | 500 | |
| 510 |
| Tensile Strength: Ultimate (UTS), MPa | 830 | |
| 770 |
| Tensile Strength: Yield (Proof), MPa | 620 | |
| 430 |
Thermal Properties
| Latent Heat of Fusion, J/g | 140 | |
| 280 |
| Melting Completion (Liquidus), °C | 1220 | |
| 1390 |
| Melting Onset (Solidus), °C | 1020 | |
| 1350 |
| Specific Heat Capacity, J/kg-K | 240 | |
| 480 |
| Thermal Expansion, µm/m-K | 14 | |
| 17 |
Otherwise Unclassified Properties
| Density, g/cm3 | 13 | |
| 7.6 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 | |
| 220 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1790 | |
| 460 |
| Stiffness to Weight: Axial, points | 4.7 | |
| 14 |
| Stiffness to Weight: Bending, points | 12 | |
| 25 |
| Strength to Weight: Axial, points | 18 | |
| 28 |
| Strength to Weight: Bending, points | 15 | |
| 25 |
| Thermal Shock Resistance, points | 41 | |
| 16 |
Alloy Composition
| Carbon (C), % | 0 | |
| 0 to 0.15 |
| Chromium (Cr), % | 0 | |
| 16.5 to 19 |
| Copper (Cu), % | 13.5 to 14.5 | |
| 0 |
| Gold (Au), % | 9.5 to 10.5 | |
| 0 |
| Iron (Fe), % | 0 | |
| 62.8 to 71.8 |
| Manganese (Mn), % | 0 | |
| 11 to 14 |
| Nickel (Ni), % | 0 | |
| 0.5 to 2.5 |
| Nitrogen (N), % | 0 | |
| 0.2 to 0.45 |
| Palladium (Pd), % | 34 to 36 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.045 |
| Platinum (Pt), % | 9.5 to 10.5 | |
| 0 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Silver (Ag), % | 29 to 31 | |
| 0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Zinc (Zn), % | 0.8 to 1.2 | |
| 0 |
| Residuals, % | 0 to 0.3 | |
| 0 |