Generalis notitia
EN 10025 S355 ferrum est vexillum Europaeum sistens gradus chalybis, secundum EN 10025-2: 2004, materia S355 dividitur in 4 praecipuas qualitates gradus:
S355JR (1.0045)
S355J0 (1.0553)
S355J2 (1.0577)
S355K2 (1.0596)
Proprietates ferri structuralis S355 melius est quam ferrum S235 et S275 in viribus et distrahendis viribus cedere.
Steel Grade S355 Meaning (Designation)
Sequentia litterarum numerorumque gradus S355 ferro explicat significationem.
"S" brevis est pro "ferro structuralis".
"355" ad minimum valorem firmitatis elasticae pro chalybe plano et longo crassitudine ≤ 16mm refertur.
"JR" significat impulsum energiae minimum 27 J ad locus temperatus (20℃).
"J0" potest sustinere impulsum energiae saltem 27 J in 0℃.
"J2" refertur ad valorem energiae minimum impulsum 27 J ad -20℃.
"K2" refertur ad minimum valorem impulsum energiae 40 J ad -20℃.
Chemical compositione & Mechanica res
Compositio chemica
S355 Chemical Compositio % (≤) | ||||||||||
Standard | Steel | Gradus | C | Si | Mn | P | S | Cu | N | Methodus deoxidationis |
EN 10025-2 | S355 | S355JR | 0.24 | 0.55 | 1.60 | 0.035 | 0.035 | 0.55 | 0.012 | Non licet ferro labris |
S355J0 (S355JO) | 0.20 | 0.55 | 1.60 | 0.030 | 0.030 | 0.55 | 0.012 | |||
S355J2 | 0.20 | 0.55 | 1.60 | 0.024 | 0.024 | 0.55 | - | plene occisus est | ||
S355K2 | 0.20 | 0.55 | 1.60 | 0.024 | 0.024 | 0.55 | - | plene occisus est |
Mechanica Properties
cede virtus
S355 Fortitudinem cede (≥ N/mm2); Diae. (d) mm | |||||||||
Steel | Steel Grade (Steel Number) | d≤16 | 16< d ≤40 | 40< d ≤63 | 63< d ≤80 | 80< d ≤100 | 100< d ≤150 | 150< d ≤200 | 200< d ≤250 |
S355 | S355JR (1.0045) | 355 | 345 | 335 | 325 | 315 | 295 | 285 | 275 |
S355J0 (1.0553) | |||||||||
S355J2 (1.0577) | |||||||||
S355K2 (1.0596) |
distrahentes Fortitudo
S355 tensile fortitudo (≥ N/mm2) | ||||
Steel | Steel Gradus | d<3 | 3 ≤ d ≤ 100 | 100 < d ≤ 250 |
S355 | S355JR | 510-680 | 470-630 | 450-600 |
S355J0 (S355JO) | ||||
S355J2 | ||||
S355K2 |
Prolongatio
Prolongatio (≥%); Crassitudo (d) mm | ||||||
Steel | Steel Gradus | 3≤d≤40 | 40< d ≤63 | 63< d ≤100 | 100< d ≤ 150 | 150< d ≤ 250 |
S355 | S355JR | 22 | 21 | 20 | 18 | 17 |
S355J0 (S355JO) | ||||||
S355J2 | ||||||
S355K2 | 20 | 19 | 18 | 18 | 17 |
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