Haihao Group Delivers High-Quality A234 WPB Pipe Fittings to the UAE Oil & Gas Project
Haihao Group has successfully completed a shipment of premium carbon steel pipe fittings for a key oil and gas project in the United Arab Emirates. The order includes a wide range of butt-weld elbows, tees, and reducers, manufactured in accordance with ASME B16.9 and NACE MR0175 standards to ensure outstanding mechanical strength and corrosion resistance in sour service environments.

Haihao Group carbon steel elbows tees and reducers for UAE oil and gas project
Product Overview
The supplied fittings cover various configurations and dimensions:
- Equal Tee, BE, SAW, 42″ — Material: A234 GR WPB NACE MR0175, Weld Type: Longitudinal SAW, Thickness: 19.1 mm × 25.4 mm
- 90° Long Radius Elbow, 42″ and 36″ — Material: A234 GR WPB / WPHY X65 NACE MR0175, Type: Butt-weld, Long Radius, Thickness: up to 26.97 mm
- Reducing Tee, 36″ × 24″ — Material: A234 WPB NACE MR0175, Thickness: 26.97 mm × SCH 60
- Seamless Elbow, 90° LR, 24″ SCH 60 — Material: A234 GR WPB NACE MR0175
- Eccentric Reducer BW SMLS, 24″ × 16″ SCH 60 — Material: A234 WPB NACE MR0175
- Equal and Reducing Tees, BW SMLS, 24″ – 24 × 18″ SCH 60 — Material: A234 GR WPB NACE MR0175
All fittings underwent heat treatment and dimensional inspection, ensuring uniform wall thickness, accurate bevels, and chemical composition control (S < 0.01%) as specified by NACE requirements. The back bend tolerance was kept within 12.5%, guaranteeing dimensional consistency during installation.
Precision Engineering and International Standards
Every product in this order was manufactured under ASME B16.9 design standards and ASME B36.10M dimensional specifications. The materials conform to ASTM A234 WPB and WPHY X65 grades—recognized globally for high-temperature and pressure resistance in energy and petrochemical applications.
The fittings are fully compliant with NACE MR0175, making them suitable for sour gas and offshore environments where hydrogen sulfide exposure demands the highest level of metallurgical control.
Commitment to Quality and Traceability
Haihao Group maintains Type 3.1 certification per EN 10204:2004 for all supplied products, ensuring full traceability from raw material to final inspection. Each fitting is subject to non-destructive testing (NDT), hydrostatic testing, and visual examination to confirm integrity before shipment.
Our rigorous quality assurance system guarantees that every product not only meets but exceeds client expectations in terms of performance, reliability, and durability.
Supporting the UAE Energy Infrastructure
The UAE continues to invest heavily in oil and gas processing, refining, and pipeline development. Haihao Group is proud to support these efforts by supplying A234 WPB pipe fittings that meet international standards and the demanding conditions of sour service pipelines.
With decades of manufacturing expertise, Haihao Group stands as a trusted global partner for ASME B16.9 butt-weld fittings, carbon steel elbows and tees, and NACE MR0175-certified piping components.

