As a trusted global supplier of high-quality piping materials, Haihao Group recently completed the production and shipment of a comprehensive piping package for a key client in Iraq. This project highlights our ability to deliver customized and standard components according to international specifications and client drawings.
Project Overview
The order consisted of a wide range of carbon steel pipes, flanges, fittings, and fasteners, tailored for large-diameter industrial pipeline applications. All items were manufactured in strict accordance with relevant international standards such as API 5L, ASME B16.5, and ASME B16.9, ensuring product reliability and long-term service performance in demanding environments.
Products Supplied
The complete supply scope included:

API 5L Grade B SAW Straight Seam Steel Pipes
API 5L Grade B SAW Straight Seam Steel Pipes
Specification: Submerged Arc Welded (SAW)
Diameter range: 30″ to 42″
Application: High-pressure fluid transportation
Custom Fabricated Expansion Joints
Manufactured strictly as per client-provided drawings
Designed to absorb thermal expansion and system vibrations
Lateral Tees & 45° Long Radius Elbows
Conforming to ASME B16.9
For directional changes and branch lines in the pipeline
Concentric Reducers
Seamless transition between pipe sizes
Ideal for maintaining flow characteristics

Flanged Branch Outlets Flange-Olets
Flanges:
RF Plate Flanges
RF Weld Neck Flanges (WN)
Flanged Branch Outlets (Flange-Olets)
All flanges were machined with raised face and ANSI-compliant bolt holes
Hot-Dip Galvanized Double-End Stud Bolts and Hex Nuts
Corrosion-resistant surface treatment
Fully threaded, ready for flange joint installation
Engineering & Quality Control
At Haihao Group, every product goes through strict quality control processes:
Material traceability through full 3.1 certification
Dimensional inspection of all pipe fittings and flanges
Welding quality assurance using ultrasonic and radiographic testing
Galvanization thickness check according to ASTM A153 standards
Custom components, including the expansion joints and lateral tees, were verified against the original engineering drawings provided by the client, with tolerance and structural strength validated through simulation and actual pressure testing.
Serving Global Industrial Projects
This order reflects Haihao Group’s capability to serve complex piping system needs across the Middle East. Whether it’s oil & gas, petrochemical, water transmission, or infrastructure development, our team delivers timely solutions backed by decades of manufacturing expertise.
Looking for a reliable piping supplier for your next project?
Haihao Group offers complete pipeline system solutions – from carbon steel and stainless steel pipes to custom-fabricated fittings and flanges.
Contact us today to discuss your technical requirements or request a quote! Email:sales@haihaogroup.com

