At Haihao Group, we specialize in manufacturing high-quality API 5L GR. B SAW pipes for global oil, gas, and infrastructure projects. Our latest delivery to a key client in Iraq demonstrates our capability to supply large-diameter carbon steel pipes with strict quality control and on-time delivery.
API 5L GR. B SAW pipes with beveled ends supplied by Haihao Group
API 5L GR. B SAW Pipes Tailored for Project Requirements
For this project, we delivered two specifications of API 5L GR. B SAW pipes, manufactured using the Submerged Arc Welding (SAW) straight seam process. These welded pipes offer excellent strength, dimensional precision, and welding reliability—essential for industrial piping systems and critical infrastructure projects.
42″ SAW Pipe
- Outside Diameter: 1066 mm
- Wall Thickness: 8.74 mm
- Ends: Beveled for on-site welding
- Material: Carbon Steel, API 5L Grade B
- Welded SAW Straight Seam, Non-Sour Service
36″ SAW Pipe
- Outside Diameter: 914 mm
- Wall Thickness: 6.35 mm
- Ends: Beveled for welding
- Material: Carbon Steel, API 5L Grade B
- Welded SAW Straight Seam, Non-Sour Service
All pipes feature precision beveled ends for secure welding connections on-site. Manufactured from certified carbon steel, these API 5L GR. B SAW pipes meet strict international standards for non-sour service applications.
Quality Manufacturing and Welding Standards
Our SAW pipes are produced under rigorous quality control, ensuring weld seam integrity and dimensional accuracy. The straight seam welding process enhances structural strength, making these welded pipes suitable for high-volume transport lines, oil & gas pipelines, and infrastructure piping systems.
Every batch of API 5L GR. B SAW pipes undergoes comprehensive inspections, including dimensional checks, weld testing, and material certification, guaranteeing product consistency from production to delivery.
Why Choose Haihao Group for API 5L GR. B SAW Pipes?
- Compliance with API 5L Standards and Welding Codes
- Submerged Arc Welded Straight Seam Pipes for Industrial Use
- Beveled Ends for Seamless On-Site Installation
- Trusted Performance in Oil & Gas Pipelines and Infrastructure Piping
- Proven Experience in Global Piping Solutions
With decades of expertise in supplying piping solutions to complex projects, Haihao Group stands as a trusted supplier for large-diameter SAW pipes worldwide.
API 5L GR. B SAW pipes supplied by Haihao Group are ready for shipment
Frequently Asked Questions (FAQ) about API 5L GR. B SAW Pipes
Q1: What is the main advantage of SAW straight seam pipes?
A: SAW straight seam pipes offer superior weld strength, excellent dimensional accuracy, and are highly reliable for large-diameter applications. The Submerged Arc Welding (SAW) process allows deep weld penetration, making these pipes ideal for high-pressure and critical service environments.
Q2: Are API 5L GR. B SAW pipes suitable for oil & gas pipelines?
A: Yes, API 5L GR. B SAW pipes are widely used in oil & gas pipelines, particularly in non-sour service applications. Their mechanical strength, weld reliability, and compliance with API standards make them a trusted choice for both onshore and offshore projects.
Q3: How does Haihao Group ensure quality in SAW pipe manufacturing?
A: We follow a strict quality management system at every production stage. This includes raw material inspection, welding process control, dimensional checks, hydrostatic testing, non-destructive examination (NDE), and final product verification to ensure consistent quality.
Q4: What are the differences between SAW pipes and ERW pipes?
A: The main differences are in welding method and typical applications:
- SAW (Submerged Arc Welding) Pipes: Welded using an automatic submerged arc process, suitable for large-diameter pipes and high-pressure applications. Commonly used in oil & gas pipelines and infrastructure projects.
- ERW (Electric Resistance Welding) Pipes: Welded using electric resistance, typically for smaller-diameter pipes, often used in structural and low-pressure applications. ERW pipes are generally more cost-effective for standard-sized piping needs.
Q5: Can Haihao Group provide custom sizes or wall thicknesses?
A: Yes, we offer customized production for API 5L GR. B SAW pipes, including special diameters, wall thicknesses, and beveling, according to client project requirements.
Q6:What are the differences between API 5L PSL1 pipes and API 5L PSL2 pipes?
A: The differences relate to quality requirements and application scope:
- PSL1 (Product Specification Level 1): Basic level with standard mechanical properties, chemical composition, and testing. Suitable for standard applications where enhanced performance is not critical.
- PSL2 (Product Specification Level 2): Higher level with stricter chemical composition limits, improved mechanical properties, tougher testing requirements (including notch toughness and non-destructive testing), and stricter quality control. Commonly used in critical applications like sour service, deepwater pipelines, or environments with higher safety requirements.
Supporting Global Projects with Certified Carbon Steel Piping
The successful delivery of API 5L GR. B SAW pipes to Iraq reflects Haihao Group’s commitment to engineering excellence, quality assurance, and customer-focused service. Our ability to meet diverse project needs—from oil & gas pipelines to major infrastructure projects—makes us a dependable partner in the global piping systems market.
Contact Haihao Group for Reliable API 5L GR. B SAW Pipes
Looking for high-quality API 5L GR. B SAW pipes with proven performance and guaranteed quality?
Contact Haihao Group today to discuss your project requirements, request a technical consultation, or get a competitive quote.
We don’t just supply pipes — we deliver confidence in every connection.
