EN 10268 Grade HC300LA
EN 10268 Grade HC300LA 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.
EN 10268 Grade HC300LA chemical
| Property | Value | Comment |
|---|---|---|
| Aluminium | Aluminium of 0.015 % | min. |
| Carbon | Carbon of 0.12 % | max. |
| Manganese | Manganese of 1.4 % | 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 HC300LA mechanical
| Property | Value | Comment |
|---|---|---|
| Elongation | Elongation of 21 % | min. | for thickness 0.5-0.7 mm | A80 | Transverse |
| - | Elongation of 22 % | min. | for thickness 0.5-0.7 mm | A80 |
| - | Elongation of 23 % | min. | for thickness 0.7-3 mm | A80 | Transverse |
| - | Elongation of 24 % | min. | for thickness 0.7-3 mm | A80 |
| Tensile strength | Tensile strength of 370 - 470 MPa | for thickness 0.5-3 mm |
| - | Tensile strength of 380 - 480 MPa | for thickness 0.5-3 mm | Transverse |
| Yield strength | Yield strength of 280 - 360 MPa | for thickness 0.5-3 mm |
| - | Yield strength of 300 - 380 MPa | for thickness 0.5-3 mm | Transverse |
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