Haihao Group Supplies ASTM A350 LF2 Weldolet Fittings for Kazakhstan Pipeline Project
Haihao Group has successfully completed the shipment of butt weld Weldolet branch fittings to a customer in Kazakhstan. The supplied products were manufactured in accordance with international standards and tailored to meet the structural and low-temperature performance requirements of pipeline systems operating in demanding environments.
These Weldolet fittings are designed for reliable branch connections on high-pressure pipelines, ensuring smooth stress distribution, excellent weld integrity, and long-term service stability.

ASTM A350 LF2 butt weld Weldolet fitting manufactured by Haihao Group for Kazakhstan pipeline project
Weldolet Specifications and Technical Details
The shipment includes BW (butt weld) Weldolet fittings in two main configurations, covering different branch and run pipe combinations:
- 16″ SCH STD Weldolet
- Outside diameter: 406.4 mm
- Wall thickness: 9.53 mm
- Height: 93.7 mm
- Run pipe size: 36” SCH XS
- 8″ SCH XS Weldolet
- Outside diameter: 219.1 mm
- Wall thickness: 12.70 mm
- Height: 98.4 mm
- Run pipe size: 20” SCH 40
These fittings provide a reinforced branch outlet design, reducing stress concentration at the junction and improving overall pipeline safety.
Material Grade and Applicable Standards
All Weldolet fittings were manufactured from ASTM A350 LF2 Class 1 carbon steel, a material widely specified for low-temperature and cold-region pipeline applications.
- Material: ASTM A350 LF2 Cl.1
- Standard: MSS-SP 97-2006
- Connection Type: Butt Weld (BW)
ASTM A350 LF2 Class 1 offers excellent impact toughness, making it suitable for pipelines operating in cold climates such as Central Asia.
Manufacturing Quality and Inspection
Each Weldolet fitting supplied by Haihao Group undergoes strict quality control, including:
- Dimensional inspection
- Visual and surface quality checks
- Material traceability verification
- Compliance review against MSS-SP 97 tolerances
The products were clearly marked and securely packed to ensure safe transportation and easy identification upon arrival at the project site in Kazakhstan.
Reliable Weldolet Supplier for International Pipeline Projects
With extensive experience supplying Weldolet and branch outlet fittings for overseas oil and gas projects, Haihao Group continues to support customers with stable quality, flexible specifications, and professional export services.
Our butt weld Weldolet fittings are widely used in oil and gas transmission pipelines, petrochemical facilities, and industrial piping systems, particularly in projects requiring enhanced strength and low-temperature performance.
