Products Description
Seamless Line Pipe is a type of pipe made from a solid round billet that is heated and perforated to form a hollow tube.
Product Parameters
|
Product Name |
Seamless Line Pipe |
|
Out Diameter |
60.3-762mm |
|
Wall Thickness |
3.5-120mm |
|
Material Standard |
API 5L |
|
Steel Grade |
Gr.B, X42, X46, X52, X56, X60, X65, X70, X80 |
|
Surface |
Black painting, oil vanish etc. |
|
Packing |
Plastic Film, Plastic Cap, Bundle, Woven bag, Wooden Case, Iron Frame |
|
Delivery |
Within 3 days with stock, 15-50 days based on production |
|
Payment |
T/T, D/P, L/C at sight, Usance L/C etc. |
Chemical Requirements
|
Composition, % for PSL 1 Pipe |
||||
|
Grade |
C |
Mn |
P |
S |
|
|
max |
max |
max |
max |
|
Seamless Pipe |
||||
|
B |
0.28 |
1.20 |
0.030 |
0.030 |
|
X42 |
0.28 |
1.30 |
0.030 |
0.030 |
|
X46 |
0.28 |
1.40 |
0.030 |
0.030 |
|
X52 |
0.28 |
1.40 |
0.030 |
0.030 |
|
X56 |
0.28 |
1.40 |
0.030 |
0.030 |
|
X60 |
0.28 |
1.40 |
0.030 |
0.030 |
|
X65 |
0.28 |
1.40 |
0.030 |
0.030 |
|
X70 |
0.28 |
1.40 |
0.030 |
0.030 |
Mechanical Property
|
Requirements for the Results of Tensile Tests for PSL 1 Pipe |
||
|
Grade |
Tensile strength min Mpa |
Yield strength min Mpa |
|
B |
415 |
245 |
|
X42 |
415 |
290 |
|
X46 |
435 |
320 |
|
X52 |
460 |
360 |
|
X56 |
490 |
390 |
|
X60 |
520 |
415 |
|
X65 |
535 |
450 |
|
X70 |
570 |
485 |
Product Features
Excellent Mechanical Properties
The high-temperature heat treatment process used in manufacturing ensures our pipes possess enhanced strength and toughness. These superior mechanical properties allow them to perform well in complex external environments, making them ideal for applications that require impact and fatigue resistance. Additionally, when tested for tensile strength and yield strength, seamless line pipes generally exhibit mechanical properties that are 10%-15% higher than those of welded pipes.
Outstanding High-Temperature Tolerance
The Seamless Line Pipe is designed to handle high temperatures, making them suitable for extreme high-temperature transportation systems. The material's high melting point and resistance to thermal cracking enable stable operation in environments with temperatures up to 800°C or higher. Compared to other pipe types, our product can tolerate temperature fluctuations exceeding 20% more than standard pipes, which makes it an excellent choice for high-temperature applications such as boilers and hot water pipes.

Product Packing
In order to avoid loss of goods during transportation, according to customer requirements, we provide appropriate packaging methods for each batch of products. If customers have no special requirements, we will do anti-rust treatment on the surface of all products.

FAQ
Q: What is a Seamless Line Pipe?
A: A Seamless Line Pipe is a type of pipe that is manufactured without welding seams, making it stronger and more reliable for transporting fluids and gases under high pressure. It is made from solid billets of steel or alloy materials and is formed through processes like extrusion or rotary piercing, which ensures a continuous, uniform structure throughout the pipe.
Q: What are the advantages of using a Seamless Line Pipe over welded pipes?
A: Seamless Line Pipes offer several advantages, including higher strength and resistance to pressure due to the absence of welds, which can be weak points. They also provide better durability, corrosion resistance, and are ideal for high-pressure and high-temperature environments. Seamless pipes tend to have a longer service life and fewer maintenance requirements than welded pipes.
Q: What industries commonly use Seamless Line Pipes?
A: Seamless Line Pipes are commonly used in industries like oil and gas, petrochemical, power generation, and chemical processing. They are particularly essential for high-pressure applications such as oil and gas transportation, steam systems, and heavy-duty structural applications, where strength, corrosion resistance, and longevity are critical.
Q: How does the manufacturing process of a Seamless Line Pipe contribute to its strength?
A: The manufacturing process of a Seamless Line Pipe, typically involving extrusion or rotary piercing, ensures a homogeneous and uniform structure. The absence of welds eliminates weak points that are prone to cracking or failure. The high-quality materials used, combined with heat treatment processes, result in a pipe with superior mechanical properties, such as higher tensile strength, better fatigue resistance, and enhanced overall durability.
Q: What are the typical dimensions and specifications of Seamless Line Pipes?
A: Seamless Line Pipes come in a variety of dimensions, including a range of wall thicknesses (from 0.5mm to over 50mm) and diameters (from small bore sizes up to large diameters of several meters). Common standards for these pipes include ASTM, API, and ISO certifications, depending on the intended application. The specific dimensions and material grades can be tailored to meet the requirements of different industries and use cases, ensuring compatibility with various systems.
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