Introduction to Common Special Structural Steel Plates

Special purpose Structure Plate Introduction

Special Purpose Structure Plates, also known as High-strength Structural Plates, are steel plates with high strength, good wear resistance, good weldability and good corrosion resistance, which are used in various industries. Due to the high mechanical properties and good formability, structural plates are widely used in engineering projects such as bridge construction, railway construction and construction of various ships.

The most common special purpose structural steel plates include high strength low alloy steel plate, wear resistant steel plate, weathering resistant steel plate, hydrogen embrittlement resistant steel plate, high strength steel plate, ultra-low carbon bainitic steel plate, bridge steel plate and HSLA/HSLA steel plate. Structural Plate can be divided into hot rolled and cold rolled according to the production process, whereas the hot rolled plate has different types such as normalized steel plate, Hardox Plate and others. Different structural plates are used for different purposes.

The most common types of structural steel plates are grade A and grade B. Both of these grades are carbon steel, with a manganese content ranging between 0.30 - 1.20% and hardness between 180 HB and 620 HB. Grade A is suitable for shipbuilding, bridges, pressure vessels, and other structural applications, while grade B is only suitable for bridges and pressure vessels. In addition, structural steel plates are available in two most popular shapes: flats and angles. The angles are used in construction due to their high strength.

Besides these two most popular grades, there are other types of special purpose structural steel such as high strength low alloy (HSLA) steel plate, wear resistant steel plate, weathering resistant steel plate, hydrogen embrittlement resistant steel plate, ultra-low carbon bainitic steel plate, bridge steel plate and ultra-high strength steel plate.

High strength low alloy steel plate is a form of steel with a lower alloy content than carbon steel. It is suitable for applications which require high strength and relatively high mechanical properties, as well as good formability. This plate has high strength and good wear resistance, making it an effective option for heavy machinery, such as excavator buckets and bulldozers.

Abrasion resistant steel plate is a form of steel with an enhanced level of wear and abrasion resistance due to its high hardness. This steel is used in the bulletproof vests and the armor plates of military vehicles, making it an ideal material for extreme conditions.

Weathering steel plate is a form of steel with a high level of corrosion resistance, making it perfect for outdoor applications. This steel is typically used in bridges, railway wagons, and cranes.

Hydrogen embrittlement resistant steel plate is a form of steel with a high level of corrosion resistance, making it perfect for underwater constructions. This steel can be found in ships and submarines.

Ultra-low carbon bainitic steel plate is a form of steel with excellent cryogenic properties. This steel is used for vehicles, components and equipment operating in low temperature conditions.

Bridge steel plate is a form of steel suitable for bridge construction. This steel closely follows the specifications of the American Association of Railroad Bridges.

Ultra-high strength steel plate is a form of steel with an improved formability, combined with high strength and good weldability. This steel is used in the construction of pressure vessels and boilers.

In summary, special purpose structural steel plates are widely used in the construction of bridges, railway tracks, ships and pressure vessels, due to their high strength, good wear resistance, and good formability. Besides the common grades such as A and B, there are also other types of special purpose structural steels available, which are suitable for a variety of applications.

Special Structural Steel Plate Introduction

Special structural steel plate is a kind of steel material with certain purpose, specifically for pressure vessels, boilers, offshore oil and gas platforms and other pressure components. Compared with ordinary carbon steel, its performance is much higher, so it must be strictly controlled in the production process, which is the basis for ensuring its performance.

In general, special structural steel plates can be divided into low-temperature special structural steel, ordinary boiler steel plates, special boilers and nuclear power steel, high strength low alloy steel, wear-resistant steel and so on.

Low-temperature special structural steel is mainly used to manufacture pressure vessels and components at low temperature, such as icebergs offshore oil and gas projects. The ordinary boiler steel plate is mainly used to manufacture various boilers, thermal power plants and pressure vessels, as well as components such as containers and pipes that transport liquid media.

Special boiler steel plate mainly includes low-quality carbon steel and low-alloy steel, which is used in the manufacture of boiler components such as superheaters and water walls, as well as components used in important equipment such as nitration units, hydrogen units and high-temperature Coke ovens.

High-strength low-alloy steel is mainly used in important welded structures such as bridges, roads and heavy machinery equipments. Wear-resistant steel is used for the manufacturing of abrasion and wear parts for engineering machinery products.

Therefore, different types of special structural steel plates have different application fields and different performance requirements, so it is necessary to select the appropriate steel plate according to the actual application.