Q235B Carbon Steel Plate

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Q235B Carbon Steel Plate

Q235B carbon steel plate is an excellent choice for a variety of applications. It has high tensile strength, good ductility, and good toughness. It is also very cost-effective.

The shear strengths of the clad plates with pure Fe, Ni, and Nb interlayers decreased compared to those of the original 2205/Q235B clad plate. This was due to the formation of Nb-Mo binary intermetallic compounds on the bonding surface.


The strength of carbon steel plate varies depending on its composition. It is typically divided into three categories based on the carbon content: low, medium and high carbon. Low carbon steel, which is also known as mild steel, has a low carbon concentration that allows for outstanding weldability and formability without becoming brittle during fabrication. This makes it ideal for structural applications. Medium carbon steel has a mid-range strength that can be enhanced with heat treatments such as quenching and tempering, which increases its hardness and toughness. This type of carbon steel can be used for a wide range of applications and is often more cost-effective than higher quality materials.

Q235B is a standardized low carbon steel grade, with equivalent properties to ASTM A36 (United States) and S235JR (Europe). Its high availability and affordability make it an excellent choice for metal construction projects that do not require much steel strength. It is ideally suited for welding and bolt Q235B carbon steel plate connection structures. However, if a higher tensile strength is required, you should consider SS400 or A36 steel.


Q235B carbon steel plate has a moderate hardness, which contributes to its good machinability and weldability. This makes it suitable for a wide range of construction and manufacturing projects. It is also cost-effective and readily available.

It can be welded using different techniques, such as arc welding and resistance welding. Its weldability makes it an ideal material for structural components like beams and columns. It is commonly used in the construction industry to build structures, machinery, and vehicle parts.

The durability of Q235B carbon steel plate depends on its yield strength, which is a measure of how much stress or pressure it can withstand before deforming permanently. Higher yield strength is better, which is why it is often preferred for structures that are exposed to high amounts of stress or heavy loads.

If necessary, a symbol indicating the quality grade and deoxidation method can be added at the end of the steel number. For example, AF means boiling steel, while Z and TZ mean killed steel or special killed steel. This allows users to easily identify the type of steel they are purchasing.

Corrosion Resistance

Q235B is a type of carbon steel that contains iron, silicon, manganese and trace amounts of other elements. It is a low-alloy steel that is used in construction applications, such as bridges and buildings. It has a lower yield strength than other types of steel, but it has good weldability and moderate cold bending properties.

Its high ductility allows it to undergo significant plastic deformation without breaking, which is useful for manufacturing and engineering processes. In addition, it can be easily welded using common methods, which is important for building structures and other construction projects.

This study was conducted to determine the corrosion behavior of Q235B carbon steel plate by cyclic salt spray accelerated corrosion testing. The corroded samples were subjected to dry and wet salt spray cycles, and the corrosion product micromorphology was characterized by SEM and energy-dispersive X-ray spectroscopy. The results showed that the passivation film ruptured at the crack, allowing chloride ions to enter the steel. The ruptured passivation layer was also rich in needle-like morphology and crystal clusters. This result suggests that the cyclic salt spray test is an effective method for investigating corrosion of low-carbon steels.


Q235B carbon steel is highly weldable, allowing it to be joined together easily using a variety of welding methods. This characteristic makes it a popular choice for use in applications that require strength and load-bearing capacity. It also has good ductility, meaning that it can undergo significant plastic deformation without fracturing.

Because of its strong tensile strength, Q235 carbon steel is a popular option for structural components such as beams and columns in buildings and bridges. It is also cost-effective compared to other types of steel, making it an ideal choice for projects with budget constraints.

While these properties are desirable, it is important to note that the specific traits and characteristics of Q235 steel can vary based on heat treatment, manufacturing processes, and material variances. galvanized steel coil suppliers As such, it is crucial to consult the necessary specifications and standards for precise information about this type of steel. These properties can then be used to determine which product is right for your application. Q235 is a standardized grade in China and has equivalent counterparts in international standards such as ASTM A36 (United States) and EN S235JR (Europe). The Q235 steel number consists of the letter “Q” followed by the yield strength value, quality grade symbol, and deoxidation method symbol.


Q235B carbon steel plate is relatively cheap and readily available, making it a popular choice for various projects and applications. It is also easy to fabricate, allowing it to be cut, drilled, and machined without difficulty. Its machinability also helps to reduce costs by enabling efficient manufacturing processes.

The strength of Q235B carbon steel plate is comparable to that of A36 and SS400, although it has lower tensile strengths than those of more advanced grades. The material is also highly durable, preventing it from rusting or losing its structural integrity over time. This durability makes it ideal for a variety of applications, including construction and manufacturing.

However, it is important to note that the specific properties of Q235B carbon steel plate can vary based on heat treatment and processing procedures. It is therefore advisable to consult relevant specifications and standards for precise information. This will help ensure that you choose the right type of steel for your project. In addition, it is important to consider the type of finish you need for your application.

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