Haihao Group Completes Delivery of A234 WPB ASME B16.9 Fittings for UAE Energy Project
Haihao Group has successfully delivered a full range of carbon steel butt-weld fittings to a valued client in the United Arab Emirates, supporting an important oil and gas infrastructure project. The products were manufactured in accordance with ASME B16.9, ASME B36.10M, and NACE MR0175 requirements to ensure reliable performance under sour service conditions.
High-Quality Materials and Standards
This shipment includes several types of A234 WPB pipe fittings, produced through both seamless and submerged arc welding (SAW) processes:
- Equal Tee, 42″ BE, SAW — A234 GR WPB NACE MR0175, thickness 19.1 mm × 25.4 mm
- 90° Long Radius Elbow, 42″ and 36″ — A234 GR WPB / WPHY X65 NACE MR0175, wall up to 26.97 mm
- Reducing Tee, 36″ × 24″ — A234 WPB NACE MR0175, SCH 60
- Seamless Elbow, 90° LR, 24″ SCH 60 — A234 GR WPB NACE MR0175
- Eccentric Reducer, 24″ × 16″ SCH 60 — A234 WPB NACE MR0175
- Equal and Reducing Tees, 24″ – 24 × 18″ SCH 60 — A234 GR WPB NACE MR0175
Every fitting is designed to meet ASME B16.9 dimensional standards, ensuring precision alignment and ease of installation in demanding piping systems.
Reliable Manufacturing for Sour Service
To meet the NACE MR0175 standard, Haihao Group strictly controlled the sulfur content (S < 0.01%) and maintained the back bend deviation below 12.5%. All fittings underwent heat treatment, non-destructive testing, and dimensional verification to ensure consistency and mechanical integrity.
These fittings are engineered for sour gas environments, where hydrogen sulfide exposure can lead to cracking or corrosion in standard materials. The use of A234 WPB and WPHY X65 grades ensures superior strength, toughness, and long-term durability even under severe conditions.
Commitment to Quality and Certification
Each product was supplied with a Type 3.1 material certificate in accordance with EN 10204:2004, providing complete traceability from raw material to finished component. The order demonstrates Haihao Group’s capability to supply NACE-compliant ASME B16.9 fittings that meet international project specifications.
Our manufacturing facilities follow a comprehensive ISO 9001 quality management system, supported by in-house testing and third-party inspection to ensure the highest level of reliability.
Supporting UAE’s Energy Development
The UAE continues to expand its oil, gas, and petrochemical infrastructure. Haihao Group is proud to contribute to this development with ASME B16.9 carbon steel elbows, tees, and reducers designed for critical service applications.
By combining advanced manufacturing technology with strict material control, Haihao Group continues to serve global customers with high-performance A234 WPB fittings that meet international standards and project requirements.

