SA-420 WPL6 ASME B16.9 Pipe Fittings Shipped to Indonesia for Low-Temperature Pipeline Service
Haihao Group has successfully completed the production and shipment of a batch of SA-420 WPL6 pipe fittings for an industrial pipeline project in Indonesia. The order includes a variety of elbows and tees manufactured in accordance with ASME B16.9, covering sizes from 2 inches to 16 inches with heavy wall schedules including SCH80, SCH160, and SCH XS.
Designed for low-temperature applications, every fitting underwent controlled heat treatment and mechanical testing to ensure excellent toughness and reliable performance in demanding operating conditions. The finished products were coated with black paint to provide temporary corrosion protection during transportation and storage.
Shipment Details
| Product | Size | Wall Thickness | Material | Standard | Finish |
| 90° Short Radius Elbow | 16″ | SCH XS | SA-420 WPL6 | ASME B16.9 | Black Paint |
| 90° Long Radius Elbow | 3″ | SCH160 | SA-420 WPL6 | ASME B16.9 | Black Paint |
| Straight Tee | 3″ | SCH160 | SA-420 WPL6 | ASME B16.9 | Black Paint |
| 90° Short Radius Elbow | 14″ | SCH XS | SA-420 WPL6 | ASME B16.9 | Black Paint |
| 90° Long Radius Elbow | 6″ | SCH80 | SA-420 WPL6 | ASME B16.9 | Black Paint |
| Reducing Tee | 6″ × 3″ | SCH80 × SCH160 | SA-420 WPL6 | ASME B16.9 | Black Paint |
| 90° Long Radius Elbow | 2″ | SCH160 | SA-420 WPL6 | ASME B16.9 | Black Paint |
| Straight Tee | 2″ | SCH160 | SA-420 WPL6 | ASME B16.9 | Black Paint |
| 90° Long Radius Elbow | 4″ | SCH160 | SA-420 WPL6 | ASME B16.9 | Black Paint |
| Reducing Tee | 4″ × 2″ | SCH160 | SA-420 WPL6 | ASME B16.9 | Black Paint |
SA-420 WPL6 Pipe Fittings for Low-Temperature Applications
The core of this shipment is a complete range of SA-420 WPL6 pipe fittings, specifically selected for pipelines operating in low-temperature environments.
Manufactured from low-temperature carbon steel, SA-420 WPL6 pipe fittings combine excellent weldability with high impact toughness. They are widely used in LNG facilities, natural gas transmission systems, petrochemical plants, refrigeration units, and other services where resistance to brittle fracture is essential.
This shipment includes both long-radius and short-radius elbows as well as straight and reducing tees, enabling customers to complete complex pipeline layouts while maintaining consistent material properties throughout the system.
ASME B16.9 WPL6 elbows and tees manufactured by Haihao Group
Heat Treatment and Low-Temperature Impact Testing
To comply with the customer’s technical specifications, Haihao Group carried out controlled heat treatment on every SA-420 WPL6 pipe fitting before final inspection.
Mechanical properties were verified through low-temperature impact testing with the following acceptance criteria:
| Inspection Item | Requirement |
| Heat Treatment | Completed for all fittings |
| Mechanical Properties | Fully Verified |
| Impact Test Temperature | -46°C |
| Average Impact Energy | ≥27 Joules |
| Minimum Individual Value | ≥20 Joules |
| Surface Finish | Black Protective Paint |
Meeting these impact requirements ensures that every SA-420 WPL6 pipe fitting maintains excellent toughness even under sub-zero operating conditions, helping improve pipeline safety and long-term reliability.
Reliable Manufacturing for International Energy Projects
Haihao Group maintains strict dimensional control throughout production to ensure every fitting complies with ASME B16.9 tolerances. The combination of precision forming, controlled heat treatment, and comprehensive inspection allows the fittings to perform reliably in critical piping systems.
Before shipment, all products received a uniform black protective coating and were securely packed for ocean transportation to Indonesia.
Supporting Global Low-Temperature Pipeline Projects
With more than four decades of manufacturing experience, Haihao Group supplies carbon steel, stainless steel, duplex stainless steel, nickel alloy, and special alloy piping components to customers around the world.
Whether your project requires SA-420 WPL6 pipe fittings, heavy-wall elbows, reducing tees, or customized low-temperature piping solutions, Haihao Group offers complete manufacturing, quality inspection, and export services to meet international engineering standards.
Contact our technical team today for quotations, material recommendations, or customized pipeline component solutions for your next project.