Haihao Group delivers ASTM A234 WPB Pipe Bends to Vietnam
Haihao Group has recently completed the manufacturing and shipment of a batch of ASTM A234 WPB carbon steel pipe bends for a key project in Vietnam. These bends are designed and produced according to ASME B16.49 and meet stringent industrial requirements for pressure piping systems.
The supplied products include 2D, 3D, and 5D pulled bends in multiple schedules, such as SCH40, SCH80, SCH100, SCH120, and STD. Pipe sizes range from 200NB to 750NB, covering a broad spectrum of diameters and wall thicknesses to accommodate various flow and pressure conditions.

Haihao Group pulled bends ready for shipment to Vietnam
Material Excellence and Precision Manufacturing
All bends are made from ASTM A234 WPB, a high-quality carbon steel material with a carbon content below 0.23%, ensuring excellent weldability, toughness, and resistance to high-temperature deformation.
The production process involves hot forming and controlled heat treatment, guaranteeing a uniform microstructure and enhanced mechanical properties.
Each bend was carefully formed with accurate outer diameter (OD), wall thickness (WT), and bend radius (R) to ensure smooth flow transition and minimum turbulence in service. The final products are suitable for oil & gas pipelines, power stations, petrochemical facilities, and offshore structures.

ASME B16.49 3D and 2D Pulled Bends Are Ready For Shipment
Comprehensive Inspection and Quality Assurance
Before delivery, Haihao Group performed a complete inspection procedure, including:
- Dimensional and surface inspection
- Material chemical composition test (carbon ≤ 0.23%)
- Hydrostatic and non-destructive testing (NDT)
- Mechanical property testing (tensile, hardness, and impact tests)
All reports, including MTC EN10204 3.1, were provided to ensure full traceability and compliance with ASME B16.49 and ASTM A234 standards.

ASTM A234 WPB 90 degree 3D pulled bend supplied by Haihao Group
Reliable Partner for Global Piping Projects
With over 40 years of manufacturing expertise, Haihao Group has become a trusted supplier of pipe fittings, flanges, and pipeline components for clients across the globe.
Our products are widely used in high-pressure, high-temperature, and corrosive environments, supporting major international energy and infrastructure projects.
This shipment to Vietnam once again demonstrates Haihao Group’s strong capability in delivering precision-engineered carbon steel pipe bends that meet both international standards and client-specific requirements.