S355J2W belongs to fine grain steel. S355J2W steel plate is an improved atmospheric corrosion resistant structural steel. S355J2W steel plate is widely used in high-speed railway bogies, welding, bolting and riveting parts. S355J2W enhances the atmospheric corrosion resistance ability applied at ambient temperature. Some specific alloy elements, such as P, Cu, Cr, Ni, Mo, are added to achieve corrosion resistance, forming a protective oxide layer on the metal surface under various climatic conditions.
Chemical composition % of the Product analysis of grade S355J2W
|
C |
P |
S |
N |
||||
|
0.19 |
0.55 |
0.45-1.60 |
0.20-0.60 |
0.035 |
0.035 |
0.35-0.85 |
0.010 |
Mechanical properties of grade S355J2W
|
-20 |
-10 |
0 |
20 |
|
|
Notch impact test. Min. absorbed energy J |
27 |
|
to 16 |
16 - 40 |
40 - 63 |
63 - 80 |
80 - 100 |
100 - 150 |
|
|
ReH - Minimum yield strength (MPa) |
355 |
345 |
335 |
325 |
315 |
295 |
|
to 3 |
3 - 100 |
100-150 |
|
|
Rm -Tensile strength (MPa) |
510-680 |
470-630 |
450-600 |
|
>=1.5＜2 |
>=2﹤2.5 |
>=2.5＜3 |
>=3＜40 |
>=40﹤63 |
>=6﹤100 |
>=100﹤150 |
|
|
A - Minimum elongation Lo=5,65 √ So (%) Longitudinal |
16 |
17 |
18 |
22 |
21 |
20 |
18 |
