Carbon steel plate a36 steel plate low alloy steel plate

What is carbon steel plate ?

The steel plate is a flat-like steel cast with molten steel and pressed after cooling 

It is flat, rectangular and can be rolled directly or cut from a wide steel strip.

The steel plate is generally divided into thin steel plate 0.2-4 mm, medium thick steel plate 4~60 mm, and extra thick steel plate 60~115 mm.

The steel plate is divided into hot rolling and cold rolling according to rolling.

The width of the sheet is generally divided into 500~1500 mm; The width of the thickness is 600~3000 mm. The sheet is divided into ordinary steel, high quality steel, alloy steel, etc. According to professional use, there are oil drum board, enamel board, bulletproof board, etc.; According to the surface coating, there are galvanized sheet, tin-plated sheet, lead-plated sheet, plastic composite steel plate and so on.

Henghui steel product production process

The production process of steel plates begins with raw material preparation. The raw material is usually billet, which is a large piece of steel that is melted in a steelmaking furnace. In the raw material preparation stage, we need to conduct quality inspection and screening of the billet to ensure that it meets the manufacturing requirements.

Heat treatment process. Heat treatment is to change the structure and properties of steel by heating and cooling. Common heat treatment processes include annealing, normalizing, quenching and tempering. Annealing process is used to eliminate the internal stress and defects of steel, improve its plasticity and toughness; Normalizing process is used to improve the hardness and strength of steel. The quenching process is used to cool the steel quickly and form a hard and brittle structure; The tempering process is used to reduce the brittleness of the steel after quenching and improve its toughness.

Rolling is the process of plastic deformation of a billet through a rolling mill so that it becomes a steel plate with a certain shape and size. The rolling process is divided into hot rolling and cold rolling. Hot rolling is carried out at high temperature, which can make the steel more prone to plastic deformation, but the surface quality is poor; Cold rolling is carried out at room temperature, which can improve the surface quality and dimensional accuracy of the steel.

Cutting is the process of cutting the steel plate to the required size. Common cutting methods include shear, flame cutting, plasma cutting and laser cutting. Cutting is cutting the steel plate to the required size through the shear machine; Flame cutting is the use of oxygen gas and acetylene gas combustion of high temperature to cut the steel plate; Plasma cutting and laser cutting use plasma arc and laser beam to cut steel plates.

Molding is the process of processing steel plates in accordance with the desired shape. Common forming methods include stamping, bending, drawing and pressure forming. Stamping is the use of punching machine to press the steel plate into the desired shape; Bending is the bending of the steel plate into the required Angle through the bending machine; Drawing is the use of a drawing machine to stretch the steel plate into the desired shape; Pressure forming is the use of a press to press steel plates into the desired shape.

The surface treatment is to improve the corrosion resistance and beauty of the steel plate. Common surface treatment methods include galvanizing, spraying and polishing. Galvanizing is to immerse the steel plate in molten zinc to form a protective layer of zinc; Spraying is the steel plate sprayed on a layer of anti-corrosion paint or paint; Polishing is to polish the surface of the steel plate by mechanical or chemical methods to make it smooth and bright.

In summary, the main process steps of steel plate production include raw material preparation, heat treatment, rolling, cutting, molding and surface treatment. Each process step plays a key role, and through the organic combination of these steps, steel plate products with excellent performance and high quality can be manufactured. Our company adheres to strict control, operation and quality inspection process to ensure the quality and reliability of products.

Advantage of our company

1, More types:  There are many types of steel with different carbon content.  

2, High strength:  The tensile, compressive, flexural and shear strength are very high.  It can be used as various components and components in construction.  In reinforced concrete, it can make up for the shortcomings of low tensile, flexural, shear and crack resistance of concrete.  

3. Good plasticity and toughness:  Construction steel can withstand large plastic deformation at room temperature, and can be cold bending, cold drawing, cold rolling, cold stamping and other cold processing.  The toughness of steel is high and can withstand the impact;  Can be welded or riveted, convenient assembly;  Capable of cutting, hot rolling and forging;  By heat treatment, the properties of steel can be changed or controlled to a considerable extent. 

Application scenarios of steel plates

1. Construction field: Steel plate is one of the main materials in the construction industry.  In building structures, steel plates are commonly used in the manufacture of beams, columns, Bridges, steel structure roofing and other components.  Because the steel plate has high strength, stiffness and weather resistance, it can withstand various forms of load, so it is widely used in high-rise buildings, long-span structures and Bridges.  

2. Manufacturing: Steel plate has a wide range of applications in manufacturing.  For example, car manufacturers use steel plates to make body and car parts such as doors, engine covers and chassis.  Other industries in the manufacturing industry, such as mechanical manufacturing, electronic manufacturing, home appliance manufacturing, etc., will also use steel plates to make structural parts and shells of products. 

3. Automotive industry: Steel plate is widely used in the automotive industry.  It is used in the body, chassis and interior of the car.  The main advantage of steel plates in the automotive industry is that they have excellent strength and stiffness while being able to maintain a low weight.  This makes the car more stable, safer, and has better fuel efficiency. 

4. Shipbuilding: Steel plate is also one of the main materials for shipbuilding.  Because the steel plate has good plasticity and corrosion resistance, it can be easily made according to different needs of different shapes and sizes of ship structural parts and hulls.  In addition, the safety performance of the steel plate on the ship is also very high, and it can withstand the harsh conditions of the Marine environment and large-scale loads.  

5. Energy industry: Steel plates have important applications in the energy industry.  For example, steel plates are used in the manufacture of oil and gas pipelines, which need to have high strength and corrosion resistance in order to safely transport energy resources.  Steel plates are also used to make oil drilling equipment, components for nuclear power plants, and renewable energy equipment such as wind turbines.

6. Metallurgical industry: Steel plates are widely used in the metallurgical industry.  The metallurgical industry mainly involves various links in the steel production process, such as blast furnace, converter, continuous casting and so on.  In these processes, steel plates are used as components of various equipment and facilities, such as furnace bodies, tanks, pipes, etc.  The metallurgical industry has high requirements for steel plates, which need to have high temperature strength, corrosion resistance and high durability. 

How to choose the right black annealed steel strip

When choosing a steel plate , the following points need to be considered: 

Specifications and models: When selecting steel, it is necessary to choose the appropriate specifications and models according to the design and needs of the building.  Generally speaking, the smaller the specification, the more uniform the material, and the higher the strength.  

Material: The material of steel is also one of the important factors in the selection.  The strength and toughness of alloy steel are high, but the price is more expensive;  The strength of ordinary carbon steel is low, but the price is more economical.  

Surface quality: The surface quality of steel has a great impact on its service life and aesthetics.  High-quality steel surface should be smooth, no cracks, no pitting and other defects.