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