Line Pipes, also known as Line Pipes, API Line Pipes, Seamless Line Pipes, Carbon Steel Line Pipes.Line pipe is a tube made of high strength carbon steel. It is typically manufactured according to the API 5L metallurgical specification developed by the American Petroleum Institute (API). This product can be used to build pipelines that transport a variety of resources including natural gas, oil, petroleum, and water.
Standard | API/ASTM/DIN/JIS/GB Standard |
Outside Diameter | 70-630mm |
Wall Thickness | 6-35mm |
Length | 6-12m |
Parameter of Line Pipes
Standard | API 5L; ASTM A53/A36; DIN1629; JIS G3454, JIS3466 |
Steel Grade | A, B, X42, X46, X52, X56, X60, X65, X70, St37, St52 |
Size | Length: 6-12m Wall Thickness: 6-35mm Outside Diameter: 70-630mm |
End | Square Ends/Plain Ends (straight cut, saw cut, torch cut),Beveled/Threaded Ends |
Surface | Black Painting/Oil Painting/Anti-Rust oil/Anti-Corrosive Coating |
Packing | Bundled,Plastic Caps Plugged,Waterproof Paper/Bag Wrapped |
Features of Line Pipes
Seamless structure endows seamless line pipes with the absence of welds and excellent structural integrity. This characteristic ensures a more homogeneous stress distribution when the pipes are subjected to pressure, thereby enhancing their reliability and durability in service.
These pipes exhibit relatively high precision in terms of outer diameter and wall thickness. Such dimensional accuracy facilitates a more seamless integration and compatibility with other pipe fittings during the installation phase of the pipeline system, contributing to the overall integrity and functionality of the pipeline network.
They possess the capacity to endure relatively elevated pressures. The yield strength and tensile strength, which are determined by the specific material composition and manufacturing techniques employed, enable them to fulfill the stringent requirements for the conveyance of high-pressure media such as petroleum and natural gas, ensuring the safety and efficiency of the transportation process.
Depending on the distinct materials selected, seamless line pipes can manifest favorable corrosion resistance properties. This adaptability allows them to be effectively utilized in a variety of corrosive environments, safeguarding the integrity of the pipeline and the quality of the transported substances.
The interior surfaces of these pipes are relatively smooth. This smoothness not only promotes the unimpeded flow of fluids but also minimizes frictional resistance during fluid passage and mitigates the deposition of impurities present in the fluids onto the pipe walls. Consequently, it helps maintain the cleanliness and optimal performance of the pipeline over an extended period.
Industries Using Steel