Carbon steel present in the European standard EN 10025-2 as S355, it has a very high resilience even at low temperatures. Widely used for the production of flanges and fittings and for construction in general. Not suitable for hardening heat treatments.
Standard Reference: EN 10025-2: 2004 (Hot-rolled products) | EN 10277: 2018 (Bright products)
| EUROPE | ITALY | GERMANY | FRANCE | UK | USA | ||
|---|---|---|---|---|---|---|---|
| EN 10025-2: 2004 EN 10277-2: 2008 |
(UNI 7070 - 72) | (DIN 17100-80) | (NF A 35-501-83) | (BS 4360 - 90) | ASTM A 29 | ||
| Grade | N° | Werkstoff | N° | ||||
| S355J2 | 1.0577 | Fe510D | St 52 - 3 | 1.0570 | E 36 - 4 | 50 D | 1019 |
| S355J2C | 1.0579 | ||||||
| C/max | Si/max | Mn/max | P/max | S | Cu/max | Al |
|---|---|---|---|---|---|---|
| 0,20 | 0,55 | 1,60 | 0,035 | 0,020÷0,035 | 0,55 | 0,020÷0,060 |
| Size mm) |
Rm (MPa) |
Rp0,2 (MPa) min |
A5 (%) min |
KV (J) -20°C (J) min |
|---|---|---|---|---|
| d≤16 | 470 - 630 | 355 | 22 | 27 |
| 16<d≤40 | 470 - 630 | 345 | 22 | 27 |
| 40<d≤63 | 470 - 630 | 335 | 21 | 27 |
| 63<d≤80 | 470 - 630 | 325 | 21 | 27 |
| 80<d≤100 | 470 - 630 | 315 | 18 | 27 |
| 100<d≤150 | 450 - 600 | 295 | 17 | 27 |
| Size (mm) |
as Rolled + Turned (+SH) |
Cold Drawn (+C) |
|||
|---|---|---|---|---|---|
| Hardness HB |
Rm (MPa) | Rp0,2 (MPa) min |
Rm (MPa) | A5 (%) min | |
| 5≤d≤10 | - | - | 520 | 630÷950 | 6 |
| 10<d≤16 | - | - | 450 | 580÷880 | 7 |
| 16<d≤40 | 140÷187 | 470÷630 | 350 | 530÷850 | 8 |
| 40<d≤63 | 140÷187 | 470÷630 | 335 | 500÷770 | 9 |
| 63<d≤100 | 140÷187 | 470÷630 | 315 | 470÷740 | 9 |
| Operation | °C |
|---|---|
| Hot forgings deformation | 900÷1150 |
| Soft annealing | 650÷700 |
