API 5L X52 Straight Seam Welded Pipe
Trustworthy welded pipe supplier
API 5L X52 range
API 5L X52 is a steel grade of API 5L. It specifies the manufacture of two product grades (PSL1 and PSL2) line pipes. X52 line pipes can be made into seamless or welded and are widely used as pipelines for oil and natural gas transportation. GNEE supplies other grades of pipelines for oil and gas transportation around the world: X42, X46, X52, X56, X60, X65, X70 pipelines.
Manufacturing process
Steel ingots, billets, billets, coils or plates for the manufacture of pipes shall be manufactured by alkaline oxygen, electric or open hearth furnaces in combination with ladle refining processes. For PSL2, the steel should be killed and melted according to fine grain practices. Coils or sheets used for PSL2 piping shall not contain any repair welds.
For welding API 5L x52 line pipe, there are 3 welding types: ERW (Resistance Welding), LSAW (Longitudinal Submerged Arc Welding) and SSAW (Spiral Submerged Arc Welding) welding types.
First-class production technology
Mechanical properties
| Pipe Grade | Tensile Properties – Pipe Body of SMLS and Welded Pipes PSL 1 | Seam of Welded Pipe | ||
|---|---|---|---|---|
| Yield Strength a | Tensile Strength a | Elongation | Tensile Strength b | |
| Rt0,5 PSI Min | Rm PSI Min | (in 2in Af % min) | Rm PSI Min | |
| X52 | 52,200 | 66,700 | c | 66,700 |
Quality assurance and sufficient inventory
Flatten test
The acceptance criteria for the flattening test shall be:
EW Pipe D<12.750 inches:
X60 with T 500-in. There shall be no openings in the weld until the distance between the plates is less than 66% of the original outer diameter. 50% for all grades and walls.
For pipes with D/t>10, the weld shall not have openings until the distance between the plates is less than 30% of the original outer diameter.
For other sizes, see the full API 5L specification.
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Production advantages
Our factory has several advantages in the production of welded pipes, including:
Experienced engineers and technicians
Advanced production equipment
Strict quality control measures
Custom production options
Team Advantage
We have a team of highly skilled professionals dedicated to providing high quality products and services to our customers. Our team has several advantages over our competitors, including:
Technical Expertise:Our team has excellent technical expertise in manufacturing Welded Steel Tubes.
Experience:Our team has years of industry experience and a deep understanding of the market.
Customer Oriented:We are customer oriented and prioritize the needs of our clients.
Responsiveness:Our team is responsive and provides quick solutions to any issues that occur.
Communication:We have excellent communication skills and keep our customers informed throughout the production process.
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