Haihao Group Supplies ASME B16.5 SA105 Forged Flanges for Argentina Pipeline Project
Haihao Group has successfully completed the production and shipment of a large batch of forged flange products for a customer in Argentina. The order includes ASME B16.5 SA105 forged flanges in multiple designs, pressure classes, and connection types, including weld neck flanges, socket weld flanges, slip-on flanges, threaded flanges, and blind flanges.
Manufactured from ASTM A105 carbon steel, these flanges were produced according to customer specifications and ASME B16.5 requirements. The order covers pressure ratings from Class 150 to Class 1500, with sizes ranging from NPS 3/4 to NPS 12, providing reliable connection solutions for industrial piping systems.
The supplied products feature Raised Face (RF) sealing surfaces and various configurations to meet different pipeline installation requirements.
Project Overview of ASME B16.5 SA105 Forged Flanges
For this Argentina project, Haihao Group supplied a comprehensive range of flange types designed for different piping connection methods.
The order mainly includes:
- Weld Neck Flanges (WNRF)
- Socket Weld Flanges (SWRF)
- Slip-On Flanges (SORF)
- Threaded Flanges (ROSC RF)
- Blind Flanges (BLIND RF)
The product details are summarized below:
| Product | Size | Pressure Class | Material |
| Blind Flange (According to Drawing) | 18″ | 2500# | ASTM A694 F65 |
| Blind Flange (According to Drawing) | 20″ | 2500# | ASTM A694 F65 |
| Blind Flange (According to Drawing) | 18″ | 2500# | ASTM A694 F65 |
Manufacturing Features of ASME B16.5 SA105 Forged Flanges
The supplied ASME B16.5 SA105 forged flanges were manufactured from ASTM A105 forged carbon steel, which is widely used in pressure piping systems due to its excellent strength, machinability, and welding performance.
Different flange designs provide different installation advantages:
Weld Neck Flanges
Weld neck flanges are commonly selected for high-pressure and critical service applications. Their tapered hub design helps distribute stress effectively and provides strong welding connections.
In this project, Haihao Group supplied weld neck flanges with various pressure classes, including CL150, CL300, CL600, CL900, and CL1500.
Socket Weld Flanges
Socket weld flanges are suitable for smaller diameter high-pressure piping systems. The pipe is inserted into the flange socket before welding, allowing accurate alignment and reliable connections.
Threaded Flanges
Threaded flanges provide a convenient connection method without welding, making them suitable for applications where welding is difficult or not preferred.
Blind Flanges
Blind flanges are used to close pipeline sections, allowing safe isolation during maintenance, testing, or future pipeline expansion.
ASME B16.5 SA105 forged flanges manufactured by Haihao Group
Quality Control for Argentina Flange Shipment
Before shipment, Haihao Group carried out strict quality inspections to ensure that every flange met customer requirements and international standards.
The inspection process included:
- Raw material verification
- Chemical composition analysis
- Mechanical property testing
- Dimensional inspection
- Sealing surface inspection
- Visual examination
- Manufacturing documentation review
For forged flange products, accurate machining of the RF sealing surface is essential to ensure proper gasket installation and long-term sealing performance.
Applications of ASTM A105 RF Flanges
The delivered ASTM A105 RF flanges are widely used in:
- Oil and gas pipelines
- Petrochemical facilities
- Refineries
- Power plants
- Chemical processing systems
- Industrial pressure piping
The combination of ASTM A105 material and ASME B16.5 dimensions makes these flanges compatible with a wide range of international pipeline systems.
Haihao Group – Professional Flange Manufacturer for Global Projects
Haihao Group specializes in manufacturing forged flanges, pipe fittings, steel pipes, and customized pipeline components for customers worldwide.
With extensive experience in international projects, Haihao Group provides:
- Standard ASME and ASTM flange products
- Customized flange manufacturing
- Various pressure classes and materials
- Complete inspection documentation
The successful shipment of ASME B16.5 SA105 forged flanges to Argentina demonstrates Haihao Group’s capability to supply reliable flange solutions for demanding industrial applications.
Contact Haihao Group for professional flange manufacturing support for your next pipeline project.