EN 10268 Grade HC420LA
EN 10268 Grade HC420LA introduction
This high strength steel is characterised by their low content of both carbon and micro-alloying elements. This gives HSLA steels outstanding functional properties, such as weldability and coatability. The hardening achieved by controlled internal purity and fine grain size structure ensures excellent mechanical strength. The grade available is in compliance with EN 10268:2006+A1:2013 and are obtained after either batch or continuous annealing. The grade with yield strength ≥ 460 MPa are only produced by the continuous annealing process.
Equivalent material: EN H400LA
EN 10268 Grade HC420LA chemical
| Property | Value | Comment |
|---|---|---|
| Aluminium | Aluminium of 0.015 % | min. |
| Carbon | Carbon of 0.14 % | max. |
| Manganese | Manganese of 1.6 % | max. |
| Niobium | Niobium of 0.09 % | max. |
| Phosphorus | Phosphorus of 0.03 % | max. |
| Silicon | Silicon of 0.5 % | max. |
| Sulfur | Sulfur of 0.025 % | max. |
| Titanium | Titanium of 0.15 % | max. |
EN 10268 Grade HC420LA mechanical
| Property | Value | Comment |
|---|---|---|
| Elongation | Elongation of 15 % | min. | for thickness 0.5-0.7 mm | A80 | Transverse |
| - | Elongation of 16 % | min. | for thickness 0.5-0.7 mm | A80 |
| - | Elongation of 17 % | min. | for thickness 0.7-3 mm | A80 | Transverse |
| - | Elongation of 18 % | min. | for thickness 0.7-3 mm | A80 |
| Tensile strength | Tensile strength of 460 - 580 MPa | for thickness 0.5-3 mm |
| - | Tensile strength of 470 - 600 MPa | for thickness 0.5-3 mm | Transverse |
| Yield strength | Yield strength of 390 - 500 MPa | for thickness 0.5-3 mm |
| - | Yield strength of 420 - 520 MPa | for thickness 0.5-3 mm | Transverse |
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