S355J0W steel and S355J0WP steel plates are under EN 10025-5 flat and long products of hot rolled steels with improved atmoSPHEric corrosion resistance. S355J0WP, S355J0W weathering steel grades are equivalent to Corten B steel .
As the material rusts when exposed to atmospheric elements, the material builds its own protective layer which prevents the steel from further oxidation.
Therefore, S355J0W sheet, like all weathering steels, offers excellent, cost effective protection against atmospheric conditions without the need for painting or external treatment. S355J0WP steel tends to be used for structures which use thinner materials.
There are little differences between S355J0W sheet and S355J0WP sheet in technical requirements.
S355J0W steel and S355J0WP steel chemical composition(%)
EN 10025-5 |
Number |
C max. |
Si max. |
Mn |
P |
S max. |
N max. |
Cr |
Cu |
|
S355J0W |
1.8959 |
0.16 |
0.50 |
0.50 - 1.50 |
max. 0.035 |
0.035 |
0.009 |
0.40 - 0.80 |
0.25-0.55 |
|
S355J0WP |
1.8945 |
0.12 |
0.75 |
max. 1.0 |
0.06 - 0.15 |
0.035 |
0.009 |
0.30 - 1.25 |
0.25-0.55 |
S355J0W steel and S355J0WP steel mechanical properties
EN 10025-5 |
Min. Yield Strength Reh MPa |
Tensile Strength Rm MPa |
|||||||
|
Nominal Thickness (mm) |
Nominal Thickness (mm) |
||||||||
|
≤16 |
>16 ≤40 |
>40 ≤63 |
>63 ≤80 |
>80 ≤100 |
>100 ≤150 |
<3 |
>3 ≤100 |
>100 ≤150 |
|
|
S355J0W |
355 |
345 |
335 |
325 |
315 |
295 |
510-680 |
470-630 |
450-600 |
|
S355J0WP |
355 |
345 |
- |
- |
- |
- |
510-680 |
470-630 |
- |
S355J0W steel is widely used in high-speed rail bogies, welding, bolting and riveting parts. S355J0WP steel plate enhances the ability to resist atmospheric corrosion at ambient temperature.
In order to achieve corrosion resistance, certain alloy elements are added, such as: P, Cu, Cr, Ni, Mo. Under various climatic conditions A protective oxide layer is formed on the metal surface.
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FAQ
Q: What is the equivalent of S355J0W?
A: The equivalent grade of S355J0W under NFA 35-502 standard is E 36 WB 3. And S355J0W equivalent grade of BS4360 standard is WR 50 B. S355J0W equivalent grade of ISO 4952 standard is Fe 355 W.
Q: What is Characteristics of S355J0W steel?
A: Excellent atmospheric corrosion resistance: S355J0W steel adds a small amount of corrosion resistance elements such as copper and nickel on the basis of ordinary steel, which can form a dense protective film on the surface of the steel plate and effectively resist corrosion factors in the atmosphere, such as moisture, oxygen and pollutants. Therefore, the atmospheric corrosion resistance of S355J0W steel is 2 to 8 times that of ordinary carbon steel, and it has a long service life.
