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Tianjin Wanlei Steel Pipe Co.,Ltd
TEL: 86-22-65815991
FAX: 86-22-25343802
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API 5L X70 Seamless Steel Pipe
Tianjin Wanlei Steel Pipe Co., Ltd can supply API 5L PSL1 & PSL2 X70 seamless steel pipe, ERW steel pipe, SAW steel pipe to you. Size: 1/8"-36". And Non-standard sizes can be produced as per your request.
Description
Tianjin Wanlei Steel Pipe Co., Ltd. is one of the leading manufacturers and suppliers of api 5l x70 seamless steel pipe in China, featured by quality products and low price. If you're going to wholesale durable api 5l x70 seamless steel pipe made in China, welcome to get pricelist and free sample from our factory.
API 5L X70 seamless steel pipe
product Introduction
API 5L X70 seamless steel pipe, also designated as L485, is a high-performance pipeline material engineered to withstand the rigorous demands of high-pressure oil and gas transmission. Characterized by a minimum yield strength of 485 MPa (70 ksi) and exceptional low-temperature impact toughness, this high-strength low-alloy (HSLA) steel utilizes microalloying elements to achieve an optimal balance of strength and ductility. The seamless manufacturing process eliminates structural weak points, ensuring superior integrity for critical applications such as deep-water offshore pipelines, sour service environments, and long-distance energy networks. Available in both PSL1 and stringent PSL2 specification levels, it can be delivered in various heat-treated states, including quenched and tempered (X70Q), to guarantee flawless weldability and reliable performance in extreme conditions.
Product feature and application
API 5L X70 Seamless Steel Pipe (L485) is a premium high-strength, low-alloy pipeline tube with a minimum yield strength of 485 MPa, engineered to deliver superior structural integrity, exceptional low-temperature toughness, and reliable weldability. Produced via a seamless process that eliminates structural weak points and enhanced by precise microalloying, this pipe allows for optimized wall thickness and reduced weight without compromising pressure capacity. It serves as the critical backbone for high-pressure, long-distance oil and gas transmission networks, particularly in demanding environments such as deep-water offshore platforms, arctic regions, and sour service conditions where resistance to hydrogen-induced cracking is essential.
Prodect qualification
To ensure the quality of API 5L X70 seamless steel pipes meets rigorous standards, a comprehensive suite of precision testing equipment is employed to monitor key geometric dimensions and surface protection properties throughout the production process. Specifically, the quality control regimen includes thickness testing using ultrasonic gauges, diameter measurement with digital calipers, and length verification, alongside strict calibration of the bevel angle using specialized gauges to facilitate optimal welding. Furthermore, to guarantee corrosion resistance, professional coating thickness gauges are utilized to precisely measure the external and internal zinc coating, thereby ensuring that every pipe delivered achieves high-quality standards in both dimensional accuracy and protective durability.
Deliver,shipping and serving
why choose us
'lt is awesome to work with Creative. amazingy organized,easy to communicate with. responsive with next iterations,and beautiful work.
Advanced Manufacturing
Utilizing state-of-the-art seamless rolling mills to produce API 5L X70 pipes with superior structural integrity and precise dimensional accuracy for high-pressure applications.
Rigorous Quality Control
Every pipe undergoes strict testing-including ultrasonic thickness checks, diameter verification, and zinc coating analysis-to ensure 100% compliance with international standards.
Global Logistics Network
Located in 27 cities with 50 delivery centers, we offer 7x24 hours delivery capacity, serving as the best partner for efficient enterprise globalization and supply chain stability.
Expert Technical Support
Our dedicated engineering team provides comprehensive one-stop solutions, from material selection to welding guidance, ensuring seamless project execution and customer satisfaction.
FAQ
Q: What distinguishes API 5L X70 seamless pipes from welded alternatives?
A: Seamless pipes are manufactured without weld seams, eliminating structural weak points and offering superior burst resistance for high-pressure environments. This makes them ideal for critical applications like deep-water offshore platforms and sour service conditions where integrity is paramount.
Q: How do you ensure the dimensional accuracy and coating quality of the pipes?
A: We employ rigorous quality control using ultrasonic gauges for wall thickness, digital calipers for diameter, and specialized testers for internal/external zinc coatings. Every pipe undergoes strict verification of bevel angles and dimensions to ensure 100% compliance with international standards before shipment.
Q: Can these pipes withstand extreme low-temperature environments?
A: Yes, the X70 (L485) grade is microalloyed with Niobium, Vanadium, and Titanium to achieve exceptional low-temperature impact toughness. This ensures reliable performance and ductility even in arctic regions or sub-zero operating conditions without brittle fracture.
Q: What is your delivery capacity and global reach?
A: We operate a robust logistics network located in 27 cities with 50 delivery centers worldwide. Our system supports 7x24-hour delivery capacity, ensuring efficient supply chain stability and serving as a reliable partner for enterprise globalization projects.
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