20# Steel Carbon Seamless Steel Pipe For Structural ASTM / DIN / GB / EN / JIS Standards

20# Steel Carbon Seamless Steel Pipe For Structural

Product Description: 20# Steel Carbon Seamless Steel Pipes are a type of carbon steel tubing known for their structural integrity and strength. These pipes are manufactured using a seamless process, which involves the creation of a continuous hollow tube from a solid billet of steel. The seamless design ensures a uniform material structure, providing superior performance and reliability compared to welded pipes. The '20#' designation refers to a carbon steel with a moderate carbon content, typically around 0.20%, which contributes to the pipe's tensile strength and ductility.

Key Features:

• Seamless Construction: The seamless structure eliminates the potential for weak points associated with welded seams, making these pipes ideal for applications where structural reliability is critical.
• Carbon Steel Material: Made from carbon steel with a 0.20% carbon content, these pipes offer a balance of strength and weldability.
• Structural Applications: Suited for structural use in construction, bridge building, and other heavy-duty applications where high loads are present.
• Mechanical Properties: Exhibits good tensile and yield strength, as well as sufficient ductility to allow for some degree of deformation without failure.

Product Applications:

1. Construction Industry: Utilized as structural support columns, beams, and other load-bearing elements in building construction.
2. Infrastructure Development: Employed in the creation of bridges, highways, and other large-scale infrastructure projects.
3. Mechanical Equipment: Used in the fabrication of heavy machinery and equipment that requires strong and durable components.
4. Pressure Vessels: Suitable for the construction of pressure vessels and boilers due to their ability to withstand high pressures.
5. Piping Systems: Ideal for use in piping systems that require high-strength tubes, such as those used in oil and gas transportation or water supply systems.
6. Reinforcement: Used for reinforcing concrete structures to enhance their load-bearing capacity.

standards for 20 # seamless steel pipes

(1) GB / t8163-2008 seamless steel pipe for fluid transportation
(2) gb3087-2008 seamless steel tubes for low and medium pressure boilers
(3) seamless steel tubes for petroleum cracking (GB / T 9948-2013)
(4) seamless pipe for high pressure fertilizer equipment (GB / T 6479-2013)
(5) GB / T 5310-2017 seamless steel tubes for high pressure boilers (in the standard, the steel number is 20g; G refers to boiler steel tubes)

 20 # chemical composition
 

It can be seen from table 1 that the content of main elements (such as C, Si, Mn) in the chemical composition of 20 × seamless steel pipe in each material standard is the same. The content of residual elements (such as Ni, CI, Cu, Mo, V) in steel in gb9948-2013 and GB 6479-2013 are the same, but there are slight differences between GB / T 8163-2008 and the above two standards. The main difference of chemical composition lies in the content of P and s.

 Mechanical Properties of 20 # Seamless Steel Pipe