EN10025-6 S550Q steel is hot rolled products of structural steels - Part 6: Technical delivery conditions for flat products of high yield strength structural steels in the quenched and tempered condition.
EN10025-6 S550Q material chemical composition
| Grade | C % max | Si % max | Mn % max | P % max | S % max | Cr % max | Cu % max |
| No marks | 0.22 | 0.86 | 1.80 | 0.030 | 0.017 | 1.60 | 0.55 |
| L | 0.025 | 0.012 | |||||
| L1 | 0.025 | 0.012 |
EN10025-6 S550Q structural steels mechanical properties
| Grade | Yield strength,ReH mpa | Tensile strength,Rm,mpa | Elongation,% | ||||
| ≥3≤50 | >50≤100 | >100≤150 | ≥3≤50 | >50≤100 | >100≤150 | ||
| S550Q | 550 | 530 | 490 | 640-820 | 590-770 | 16 | |
EN10025-6 standard steel dimension specification:
Grades S460,S500,S550,S620 and S690, minimum nominal thickness of 3mm a maximum nominal thickness ≤150mm
Grade S890---maximum nominal thickness ≤100 mm.
Grade S960---maximum nominal thickness ≤50mm.
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