S420

S420/S420N Steel Plate EN 10025 -  3: 2004   1.8902

S420 – offers high yield and tensile strength with a minimum yield strength of 420 N/mm². Structural steels with guaranteed fine grain structure and low carbon equivalent. Because of the yield strength up to 420 MPa and impact energy guaranteed at temperature -20 °C these steels are suitable for more demanding steel structures and their supporting elements. They are suitable for construction of railway, construction of offshore structure and motor vehicles, too.

S420 Structural Steel is a Hot-rolled products in weldable fine grain steels. These grades are supplied in normalized/normalized rolled steels delivery conditions

Chemical composition %   of grade   S420N (1.8902)

Nominal thickness =< 63(mm) CEV max = 0.48

Nominal thickness from 63 to 100 (mm) CEV max = 0.50

For long products the P and S content can be 0.005% higher

For railway application a maximum S content of 0.01% may be agreed at the time of enquiry and order

In sufficient other N-binding elements are present the minimum total Al content does not applay

Cu content above 0.4% may cause hot shortness during hot forming

C
Si
Mn
Ni
P
S
Cr
Mo
V
N
Nb
Ti
Al
Cu
CEV
max 0.2
max 0.6
1 – 1.7
max 0.8
max 0.03
max 0.025
max 0.3
max 0.1
max 0.2
max 0.025
max 0.05
max 0.05
max 0.02
max 0.55
max 0.52


Mechanical properties of grade   S420N (1.8902)

Nominal thickness (mm):
to 100
100 – 200
200 – 250
Tensile strength (MPa)
520-680
500-650
500-650

 

Nominal thk (mm):
to 16
16 – 40
40 – 63
63 – 80
80 – 100
100 – 150
150 – 200
200 – 250
 Minimum yield strength (MPa)
420
400
390
370
360
340
330
320

 

KV – Impact energy (J) longitud., (+N)
+20°
-10°
-20°
55
47
43
40
KV – Impact energy (J) transverse, (+N)
+20°
-10°
-20°
31
27
24
20

 

Nominal thk (mm):
to 16
16 – 40
40 – 63
63 – 80
80 – 200
200 – 250
A – Min. elongation Lo = 5,65 √ So (%)
19
19
19
18
18
18

 

Equivalent grades of grade   S420N (1.8902)

USA
Germany
Japan
France
European old
Italy
Spain
China
Russia
Inter
-
DIN,WNr
JIS
AFNOR
EN
UNI
UNE
GB
GOST
ISO
A255Gr.D
StE420
SM490A
E420R
FeE420KGN
FeE420KGN
AE420KG
Q420D
16G2AF
E420
A633E
SM490C

 

To find out more about Triton Alloys Inc Services and our Range of “ Grade S420/S420N ” which we can supply directly to you, Click Here to Contact Us.