GB/T 34201 Hot Rolled Square And Rectangular Seamless Steel Tubes For Structure

GB/T 34201 Seamless Hot-Rolled Square And Rectangular Seamless Steel Tubes For Structure

Subtitle: Material, Specification, Key Features, Chemical Composition, Mechanical Properties, Steel Grade, Application, Possible Alternative Grades

Material

The GB/T 34201 standard specifies the use of seamless hot-rolled square and rectangular steel tubes for structural purposes. These tubes are made from high-quality steel materials that ensure their durability and performance.

Specification

Key Features

The seamless hot-rolled square and rectangular steel tubes for structure offer several key features that make them suitable for various applications. These features include:

• High strength: The steel tubes possess excellent strength, allowing them to withstand heavy loads and pressure.
• Good weldability: The tubes can be easily welded, ensuring easy fabrication and installation.
• Superior dimensional accuracy: The tubes have precise dimensions, ensuring compatibility and seamless integration within structures.
• Smooth surface finish: The smooth surface finish of the tubes enhances their appearance and enables better aesthetics.
• Resistance to corrosion: The tubes are resistant to corrosion, which increases their lifespan and reduces maintenance requirements.

Chemical Composition

The chemical composition of the seamless hot-rolled square and rectangular steel tubes for structure may vary depending on the specific steel grade. However, the general composition can include the following elements:

Mechanical Properties

The mechanical properties of the seamless hot-rolled square and rectangular steel tubes for structure are essential to ensure their performance and integrity. The following table showcases the typical mechanical properties of these tubes:

Steel Grade

The GB/T 34201 standard covers several steel grades suitable for seamless hot-rolled square and rectangular steel tubes for structure. The specific steel grade designation depends on the chemical composition, mechanical properties, and intended application. Some common steel grades include:

• Q195
• Q215
• Q235
• Q345

Application

The seamless hot-rolled square and rectangular steel tubes specified in GB/T 34201 find applications in various structural projects and industries. Some common applications include:

• Construction of buildings, bridges, and stadiums
• Manufacturing of machinery and equipment
• Infrastructure projects
• Oil and gas industry
• Automotive industry

Possible Alternative Grades

While GB/T 34201 standard specifies the usage of specific steel grades, there might be alternative grades available based on regional or commercial preferences. Some possible alternative grades that fulfill similar requirements and specifications may include:

• ASTM A500
• DIN EN 10210-1

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A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.

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