Haihao Group Supplies 28” API 5L X70 Seamless End Cap for ADNOC Project in the UAE

Haihao Group has successfully delivered a 28-inch seamless end cap to a customer in the United Arab Emirates, manufactured specifically for an ADNOC-related pipeline project. The product was produced in full compliance with ASME B16.9 and API 5L Grade X70, meeting stringent material, heat treatment, and chemical composition requirements.

This delivery once again demonstrates Haihao Group’s capability to supply high-specification carbon steel pipe fittings for demanding oil and gas applications in the Middle East.

Product Details

The supplied product specifications are as follows:

• Product: Seamless End Cap
• Size: 28 inch
• Wall Thickness: SCH 20 (12.7 mm)
• Material: API 5L Grade X70
• Standard: ASME B16.9
• Manufacturing Type: Seamless

The API 5L X70 seamless end cap is designed to provide reliable closure for large-diameter pipelines operating under high pressure and demanding service conditions.

28 inch API 5L X70 seamless end cap manufactured by Haihao Group for ADNOC pipeline project in the UAE

Material and Technical Requirements

To meet ADNOC project specifications, strict controls were applied throughout production:

• Guaranteed material grade: API 5L Gr. X70
• Full heat treatment performed as specified
• Low sulfur and phosphorus content, each not exceeding 0.003%
• Compliance with ADNOC material and quality requirements

These controls ensure excellent mechanical strength, weldability, and long-term performance in critical pipeline systems.

Application in Oil and Gas Pipelines

This 28” SCH 20 seamless end cap is suitable for use in:

• Onshore and offshore oil and gas pipelines
• ADNOC-approved pipeline systems
• High-pressure transmission lines
• Energy infrastructure projects in the UAE and Middle East

Large-diameter seamless end caps play a vital role in ensuring pipeline integrity, especially in environments where safety, reliability, and regulatory compliance are essential.

Quality Inspection and Delivery Assurance

Before shipment, the end cap underwent comprehensive inspection, including:

• Dimensional and wall thickness checks
• Chemical composition verification
• Mechanical property testing
• Visual and surface inspection
• Bevel and end preparation inspection

Haihao Group ensures that every ASME B16.9 seamless pipe cap delivered to UAE customers fully complies with project specifications and international standards.

Trusted Supplier for ADNOC and Middle East Projects

With extensive experience supplying API 5L X70 pipe fittings to the Middle East, Haihao Group continues to support ADNOC-related projects with stable quality, technical reliability, and on-time delivery.

From seamless end caps to elbows, reducers, and tees, Haihao Group provides one-stop solutions for carbon steel pipe fittings tailored to oil and gas pipeline applications.