Haihao Group Supplied ASME B16.9 A234 WPB Seamless Pipe Caps for UK Customer
Haihao Group recently completed the production and shipment of a batch of seamless pipe caps for a customer in the UK. The order included various sizes of ASME B16.9 A234 WPB pipe caps, covering common and large diameter specifications from 1-1/4 inch to 18 inch with different wall thickness requirements.
These seamless pipe caps were manufactured according to ASME B16.9 dimensional requirements and produced using ASTM A234 WPB carbon steel, a widely used material grade for pressure piping systems. The products are designed for reliable end closure applications in industries such as oil & gas, petrochemical, power generation, and industrial pipeline construction.
ASME B16.9 A234 WPB seamless pipe caps supplied by Haihao Group
Order Details of ASME B16.9 A234 WPB Pipe Caps
The UK customer’s order included seamless pipe caps in STD and XS wall thickness grades. The detailed supply range is shown below:
| Product | Size | Wall Thickness | Material | Standard |
| Seamless Pipe Cap | 1-1/4″ | STD | A234 WPB | ASME B16.9 |
| Seamless Pipe Cap | 2″ | STD | A234 WPB | ASME B16.9 |
| Seamless Pipe Cap | 3″ | XS | A234 WPB | ASME B16.9 |
| Seamless Pipe Cap | 4″ | STD | A234 WPB | ASME B16.9 |
| Seamless Pipe Cap | 5″ | STD | A234 WPB | ASME B16.9 |
| Seamless Pipe Cap | 6″ | STD | A234 WPB | ASME B16.9 |
| Seamless Pipe Cap | 12″ | STD | A234 WPB | ASME B16.9 |
| Seamless Pipe Cap | 12″ | XS | A234 WPB | ASME B16.9 |
| Seamless Pipe Cap | 14″ | STD | A234 WPB | ASME B16.9 |
| Seamless Pipe Cap | 18″ | STD | A234 WPB | ASME B16.9 |
Reliable Carbon Steel Pipe Caps for Industrial Piping Systems
Pipe caps are essential butt-weld fittings used to close the end of pipelines, pressure vessels, and piping assemblies. Compared with welded alternatives, seamless pipe caps provide a smooth internal surface and consistent mechanical performance, making them suitable for demanding pressure applications.
The supplied ASME B16.9 A234 WPB pipe caps were manufactured with attention to dimensional accuracy, material traceability, and customer-specific requirements. Each product follows the required size and thickness specifications to ensure proper connection with existing piping systems.
Material Advantages of A234 WPB Carbon Steel
ASTM A234 WPB is one of the most commonly specified carbon steel materials for pressure piping fittings. It offers a good balance of strength, weldability, and cost efficiency, making it widely applied in:
- Oil and gas transmission pipelines
- Chemical processing facilities
- Power plants
- Refinery piping systems
- Industrial equipment connections
For this UK shipment, Haihao Group supplied A234 WPB seamless pipe caps in multiple sizes, allowing the customer to use the fittings across different pipeline sections without additional fabrication.
Manufacturing Quality and Inspection
During production, Haihao Group follows strict manufacturing procedures for carbon steel butt weld fittings. The pipe caps are produced according to ASME B16.9 pipe fitting standards, with control of:
- Dimensional tolerance
- Material identification
- Wall thickness accuracy
- Surface condition
- Final inspection before shipment
The combination of standardized production and inspection procedures helps ensure stable performance after installation.
Haihao Group – Your Partner for ASME Standard Pipe Fittings
With decades of experience in manufacturing pipeline components, Haihao Group supplies a wide range of butt weld fittings, including elbows, tees, reducers, caps, and customized piping solutions.
Whether for standard projects or special engineering requirements, Haihao Group can provide ASME B16.9 A234 WPB pipe caps with reliable quality control, flexible production capability, and professional export service.
Contact Haihao Group for your next carbon steel pipe fitting project.