Pipe Fittings Supplied to UAE for Sour Service Oil & Gas Piping Systems
Haihao Group has successfully completed the supply of a comprehensive range of ASME B16.9 butt weld pipe fittings for a customer in the United Arab Emirates. The products are designed for sour service oil and gas piping systems, fully complying with NACE MR0175 / ISO 15156 requirements.
The shipment covers carbon steel fittings, Alloy 825 fittings, super duplex stainless steel S32750 fittings, and SS316 pipe fittings, meeting different corrosion resistance and mechanical strength requirements within the same project.
ASME B16.9 ASTM A234 GR. WPB 90 degree elbows and tees
Carbon Steel Pipe Fittings for Sour Service Applications
Part of the order includes carbon steel long radius elbows and equal tees manufactured from ASTM A234 Grade WPB, suitable for sour service conditions.
Key specifications include:
- 90° Long Radius Elbow, 4″ (100 NB), SCH 80
- Equal Tee, 2″ (50 NB), SCH 80
- Manufacturing Standard: ASME B16.9
- Material: ASTM A234 GR. WPB
- Condition: Wrought, Butt Weld
- Compliance: NACE MR0175 / ISO 15156
These ASTM A234 WPB pipe fittings for sour service are widely used in upstream and midstream oil and gas facilities across the Middle East.
Alloy 825 Pipe Fittings for High Corrosion Resistance
The main portion of the supply consists of Alloy 825 pipe fittings, manufactured in accordance with ASTM B366 GR. WPNICMC. Alloy 825 is well known for its excellent resistance to chloride stress corrosion cracking, acidic environments, and sour gas media.
Supplied Alloy 825 fittings include:
- 90° and 45° long radius elbows (SCH 40 / SCH 10)
- Equal tees and unequal tees
- Concentric reducers
- End caps
Size range covers 1/2″ to 4″, with schedules SCH 40 and SCH 10, all produced as wrought BW fittings to ASME B16.9.
These Alloy 825 butt weld fittings for NACE MR0175 applications are commonly used in offshore platforms, gas treatment units, and corrosive process piping systems.
Super Duplex S32750 Pipe Fittings for High Strength Service
Haihao Group also supplied super duplex stainless steel pipe fittings manufactured from ASTM A815 Grade S32750.
Included items:
- 45° Long Radius Elbow, 3″ SCH 10
- 45° Long Radius Elbow, 8″ SCH 20
- 90° Long Radius Elbow, 2″ SCH 20S
All fittings are seamless (SMLS), wrought, and BW type, offering high mechanical strength, excellent pitting resistance, and reliable performance under low-temperature and high-pressure conditions.
These ASTM A815 S32750 pipe fittings fully meet ASME B16.9 and NACE MR0175 / ISO 15156 requirements.
SS316 Pipe Fittings for Auxiliary Piping
In addition, the shipment includes SS316 unequal tee fittings, size 2″ × 1″ SCH 40, manufactured to ASME B16.9. SS316 fittings are commonly used in auxiliary piping systems where moderate corrosion resistance is required.
Quality Control and Compliance
All pipe fittings were manufactured under strict quality control procedures, including:
- Dimensional inspection
- Visual examination
- Material traceability
- Compliance verification with ASME B16.9 and NACE MR0175
Haihao Group has extensive experience supplying NACE-compliant pipe fittings to UAE oil and gas projects, ensuring stable quality and reliable delivery.