ASTM A234 WPB Pipe Caps Supplied to South Korea
Haihao Group has successfully completed the shipment of ASTM A234 WPB carbon steel pipe caps to a customer in South Korea, supporting a pipeline system designed for reliable pressure containment and long-term service.
The supplied pipe caps were manufactured in strict accordance with project specifications and underwent impact testing and chemical composition analysis, ensuring dependable mechanical performance and material consistency.
Pipe Cap Specifications
This shipment included the following butt weld pipe caps:
- 4″ SCH 40 pipe cap, ASTM A234 WPB
- 4″ SCH 80 pipe cap, ASTM A234 WPB
All products were produced with precise dimensional tolerances to ensure proper fit-up with corresponding carbon steel pipes and fittings.
Material Advantages: ASTM A234 WPB
ASTM A234 WPB is a widely used material for carbon steel pipe fittings, especially in oil & gas, power generation, and industrial piping systems.
Key benefits include:
- Stable chemical composition suitable for welding
- Good toughness and strength for pressure service
- Reliable performance in low- and medium-temperature applications
- Compatibility with ASTM A106 and API carbon steel pipes
These characteristics make ASTM A234 WPB pipe caps a practical and cost-effective solution for pipeline end closures.
Quality Inspection and Testing
To meet the customer’s quality requirements, Haihao Group provided comprehensive inspection services, including:
- Impact testing to verify toughness performance
- Chemical composition analysis to confirm compliance with ASTM standards
- Visual inspection of weld bevels and surface condition
Each pipe cap was supplied with clear quality documentation, ensuring traceability and confidence during installation and operation.
Reliable Pipe Cap Supplier for the Korean Market
With extensive experience exporting to South Korea, Haihao Group supplies a full range of carbon steel pipe fittings, including pipe caps, elbows, tees, and reducers.
Our products are widely used in industrial pipelines, refineries, power plants, and EPC projects, supported by stable quality control and professional technical service.

