Haihao Group Supplies ASTM A350 LF2 RTJ Weld Neck Flanges to Indonesia for Low Temperature Service
Haihao Group has successfully completed the production and shipment of a batch of ASTM A350 LF2 RTJ weld neck flanges for a customer in Indonesia. These flanges are designed for high-pressure and low-temperature pipeline systems, ensuring reliable sealing performance and structural strength in demanding industrial environments.
The order includes 10-inch and 14-inch Class 1500 RTJ weld neck flanges, manufactured according to ASME B16.5 standards. The flanges are produced from ASTM A350 LF2 Class 1 carbon steel, a material specifically developed for low-temperature applications.
To meet the project’s strict technical requirements, the sealing surfaces were machined with a surface roughness of 1.6 μm, ensuring precise contact with ring-type joint gaskets. In addition, the material passed low-temperature impact testing at −46°C, achieving impact energy values of 27J / 20J, confirming the reliability of the ASTM A350 LF2 RTJ weld neck flanges in cold-service conditions.
ASME B16.5 ASTM A350 LF2 RTJ weld neck flanges Class 1500 ready for shipment
Product Specifications of RTJ Weld Neck Flanges
The supplied ASTM A350 LF2 RTJ weld neck flanges were manufactured with strict quality control and dimensional accuracy.
Key Product Details
10″ RTJ Weld Neck Flange
- Product Type: RTJ Weld Neck Flange
- Size: 10 inches
- Pressure Rating: Class 1500
- Pipe Schedule: SCH120
- Material: ASTM A350 LF2 Class 1
- Standard: ASME B16.5
- Sealing Surface Roughness: 1.6 μm
- Low Temperature Impact Test: −46°C, 27J / 20J
14″ RTJ Weld Neck Flange
- Product Type: RTJ Weld Neck Flange
- Size: 14 inches
- Pressure Rating: Class 1500
- Pipe Schedule: SCH120
- Material: ASTM A350 LF2 Class 1
- Standard: ASME B16.5
- Sealing Surface Roughness: 1.6 μm
- Low Temperature Impact Test: −46°C, 27J / 20J
These ASTM A350 LF2 RTJ weld neck flanges are widely used in critical pipeline systems where high pressure, temperature fluctuations, and sealing reliability are essential.
Why Choose ASTM A350 LF2 RTJ Weld Neck Flanges?
The ASTM A350 LF2 RTJ weld neck flange is widely used in energy and industrial pipelines due to its superior mechanical properties and sealing capability.
Excellent Low Temperature Performance
ASTM A350 LF2 material is specifically designed for low-temperature service, providing reliable toughness even at −46°C.
High Pressure Resistance
With a Class 1500 pressure rating, these flanges are suitable for demanding pipeline systems in oil, gas, and petrochemical industries.
Superior Sealing Performance
The RTJ (Ring Type Joint) sealing surface ensures strong metal-to-metal sealing, reducing the risk of leakage under extreme pressure.
Strong Structural Design
The weld neck flange structure helps distribute stress evenly along the pipe and flange connection, improving pipeline safety.
Applications of ASTM A350 LF2 RTJ Weld Neck Flanges
The ASTM A350 LF2 RTJ weld neck flanges supplied to Indonesia are commonly used in industries requiring high reliability and low-temperature performance.
Typical applications include:
- Oil and gas pipeline systems
- LNG and cryogenic facilities
- Petrochemical plants
- Offshore pipeline engineering
- High-pressure industrial piping systems
Because of their durability and excellent sealing performance, ASTM A350 LF2 RTJ weld neck flanges are considered an ideal solution for critical pipeline installations.
Haihao Group – Trusted Manufacturer of Industrial Flanges
Haihao Group is a professional manufacturer and exporter of industrial flanges, pipe fittings, and steel pipes. Our products are manufactured according to international standards including ASME, ASTM, EN, and API, ensuring compatibility with global pipeline projects.
With advanced production facilities and strict quality control procedures, Haihao Group continues to supply high-quality ASTM A350 LF2 RTJ weld neck flanges to customers worldwide.
If you are looking for a reliable supplier of low-temperature pipeline flanges, Haihao Group can provide customized solutions and professional support for your engineering projects.