Uncoated steel flat products
Hot rolled products
Hot rolled structural steels – Part 2:Non-alloy structural steels
these products are characterised by guaranteed minimum yield, tensile, elongation and resilience limits.
The quality grades that provide the guaranteed minimum resilience (SnnnJN steels) are supplied with CE marking.
This category of products is suitable for the construction of items, such as welded structural steelworks that do not require significant deformations of the individual components. As it bears the CE marking, it is suitable for use in civil structures and, with SnnnJ0 and J2 grades, even at low temperatures with unaltered guaranteed minimum resilience values at 0 and -20 ° C, respectively.
These products are surface treated by hot dip coating or painting prior to use.
The tables below show only the main characteristics of the products listed and not all the technical supply conditions. For further details, please refer to the full contents of the standards mentioned on this page.
Condizioni tecniche di fornitura: EN 10025-2:2019
Tolleranze dimensionali e di forma: EN 10051:2011
CARATTERISTICHE MECCANICHE (Ved. note (*))
| QUALITA’ | CARATTERISTICHE MECCANICHE (Ved. Note (*)) | ||||||||
| ReH min (Mpa) |
Rm (Mpa) |
A% min. L0=80 mm |
A% min. L0=80 mm |
A% min. L0=80 mm |
A% min. L0=80 mm |
A% min. L0=5,65√S0 |
KV min. (J) |
||
| Spessore (S) | S<=16,0 | S<3 | 3 <=S<=100 | 1 <S<=1,5 | 1,5<S<=2,0 | 2,0<S<=2,5 | 2,5<S<3 | 3<=S<=40 | S<=150 |
| S235JR
S235J0 S235J2 |
235 | 360 – 510 | 360 – 510 | 18 (L)
16 (T) |
19 (L)
17 (T) |
20 (L)
18 (T) |
21 (L)
19 (T) |
26 (L)
24 (T) |
27 (+20°C)
27 ( 0°C) 27 (-20°C) |
| S275JR
S275J0 S275J2 |
275 | 430 – 580 | 410 – 560 | 16 (L)
14 (T) |
17 (L)
15 (T) |
18 (L)
16 (T) |
19 (L)
17 (T) |
23 (L)
21 (T) |
27 (+20°C)
27 ( 0°C) 27 (-20°C) |
| S355JR
S355J0 S355J2 S355K2 |
355 | 510 – 680 | 470 – 630 | 15 (L)
13 (T) |
16 (L)
14 (T) |
17 (L)
15 (T) |
18 (L)
16 (T) |
22 (L)
20 (T) |
27 (+20°C)
27 ( 0°C) 27 (-20°C) 40 (-20°C) |
(*) Per La>=600 mm si applica il provino (T) trasversale alla direzione di laminazione; per La<600 il (L) parallelo alla direzione di laminazione
ANALISI CHIMICA COLATA (Valori % max.)
| QUALITA’ | ANALISI CHIMICA COLATA (Valori % max.) | ||||||||||||
| C | Mn | Si | P | S | N | Cu | Al | Nb | V | Ti | Mo | B | |
| S235JR
S235J0 S235J2 |
0,170 | 1,400 | – | 0,035
0,030 0,025 |
0,035
0,030 0,025 |
0,012
0,012 – |
0,550 | – | – | – | – | – | – |
| S275JR
S275J0 S275J2 |
0,21
0,18 0,18 |
1,500 | – | 0,035
0,030 0,025 |
0,035
0,030 0,025 |
0,012
0,012 – |
0,550 | – | – | – | – | – | – |
| S355JR
S355J0 S355J2 S355K2 |
0,24
0,20 0,20 0,20 |
1,600 | – | 0,035
0,030 0,025 0,025 |
0,035
0,030 0,025 0,025 |
0,012
0,012 – – |
0,550 | – | – | – | – | – | – |