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S355J2WP steel plate is a European standard atmospheric corrosion-resistant steel, which belongs to weathering steel plate. It is a low-alloy steel made by adding a certain amount of alloying elements to ordinary steel. The atmospheric corrosion resistance of weathering steel is 2-8 times that of ordinary carbon steel, and it has good mechanical properties, welding properties, etc., and the longer the time, the more obvious the corrosion resistance effect.
1. S355J2WP steel plate grade analysis:
S—symbol S (for structural steel);
355—Description of the specified lower limit yield strength for thickness £ 16mm, expressed in MPa);
J2—the quality name according to the impact energy data;
W—indicates that the steel is improved atmospheric corrosion resistance;
P - if applicable, the letter P is used for the greater phosphorus content classification (only when the steel grade is S355);
2. S355J2WP steel plate implementation standard: EN10025-5:2004 standard.
3. Delivery status of S355J2WP steel plate: delivered in hot rolled, normalized or normalized rolled state.
4. S355J2WP improved atmospheric corrosion resistant steel
A certain amount of alloying elements, such as P, Cu, Cr, Ni, Mo, are added to the steel. In order to increase the resistance to air corrosion, an automatic protective oxide is formed on the base metal under the influence of climatic conditions.
5. Characteristics of S355J2WP weathering steel
S355J2WP weathering steel has a protective rust layer and is resistant to atmospheric corrosion, and can be used to manufacture low-alloy structural steel for steel structures such as vehicles, bridges, towers, and containers. Compared with ordinary carbon steel, weathering steel has better corrosion resistance in the atmosphere. Compared with stainless steel, weathering steel has only a small amount of alloying elements, such as phosphorus, copper, chromium, nickel, molybdenum, niobium, vanadium, titanium, etc., the total amount of alloying elements is only a few percent, unlike stainless steel, which reaches 100%. Tens of tenths, so the price is relatively low.
6. Chemical composition of S355J2WP steel plate (melting analysis):
| C % | Mn % | Cr % | Si % | CEV % | S % |
| Max 0.12 | Max 1 | 0.3-1.25 | Max 0.75 | Max 0.52 | Max 0.03 |
| Cu % | P % | ||||
| 0.25-0.55 | 0.06 - 0.15 |
7. Mechanical properties of S355J2WP steel plate:
| Grade | Min. Yield Strength Mpa | Tensile Strength MPa | Impact | ||||||||
| S355J2WP | Nominal Thickness (mm) | Nominal Thickness (mm) | degree | J | |||||||
| Thick mm | ≤16 | >16 ≤40 |
>40 ≤63 |
>63 ≤80 |
>80 ≤100 |
>100 ≤150 |
≤3 | >3 ≤100 | >100 ≤150 | -20 | 27 |
| S355J2WP | 355 | 345 | …. | …. | …. | …. | 510-680 | 470-630 | …. | ||
If S355J2WP mechanical properties have been significantly
8. Application scope of S355J2WP steel plate
S355J2WP steel plate is mainly used in railways, vehicles, bridges, towers, photovoltaics, high-speed projects and other steel structures exposed to the atmosphere for a long time. It is used to manufacture structural parts such as containers, railway vehicles, oil derricks, seaport buildings, oil production platforms and containers containing hydrogen sulfide corrosive medium in chemical and petroleum equipment.
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Angle steel, commonly known as angle iron, is a long strip of steel whose sides are perpendicular to each other. There are equal angle steels and unequal angle steels. The two sides of equal angle steel are equal in width. The unequal angle steel is also known as L shape profile steel.
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Bulb flat steel for shipbuilding
The bulb flat steel is a kind of medium section material which is mainly used in the field of shipbuilding and bridge building, and the shipbuilding bulb flat steel is an auxiliary medium section material for shipbuilding.
The steel for shipbuilding and oil platform---FH40, is the high tensile strength steel.The shipbuilding steel FH40 is the Hull structural steel.We can provide FH40 shipbuilding steel plate price.
The steel for shipbuilding and oil platform---EH40, is the high tensile strength steel.The shipbuilding steel EH40 is the Hull structural steel.We can provide EH40 shipbuilding steel plate price.
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