S355J0W steel is a weather resistant steel which could more accurately be termed as an "Atmospheric Corrosion Resistant Steel" and often referred to as Corten-B steel. Weathering means that due to S355J0W steel chemical compositions, S355J0W steel chemical composition can increase resistance to atmospheric corrosion compared to other steels. This is because it forms a protective layer on S355J0W steel surface under the influence of the weather.
Chemical composition % of the Product analysis of grade S355J0W
|
C |
Si |
Mn |
Cu |
P |
S |
Cr |
N |
|
0.19 |
0.55 |
0.45-1.60 |
0.20-0.60 |
0.040 |
0.040 |
0.35-0.85 |
0.010 |
Mechanical properties of grade S355J0W
|
Temperature |
-20 |
-10 |
0 |
20 |
|
Notch impact test. Min. absorbed energy J |
|
|
27 |
|
|
Nominal thickness (mm) |
to 16 |
16 - 40 |
40 - 63 |
63 - 80 |
80 - 100 |
100 - 150 |
|
ReH - Minimum yield strength (MPa) |
355 |
345 |
335 |
325 |
315 |
295 |
|
Nominal thickness (mm) |
to 3 |
3 - 100
|
100-150 |
|
Rm -Tensile strength (MPa) |
510-680 |
470-630 |
450-600 |
|
Nominal thickness (mm) |
≥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 |
