Carbon Steel A105 Flanges Delivered to Thailand for Industrial Piping Projects

Haihao Group has successfully completed the shipment of a wide range of carbon steel flanges to a customer in Thailand, covering weld neck (WNRF) and slip-on (SORF) designs. The flanges are manufactured from ASTM A105 forged carbon steel, supplied in multiple pressure classes and international standards to meet diverse piping system requirements.

This delivery supports local industrial projects that require reliable flange connections with consistent dimensional accuracy and surface protection.

Product Range and Types

The shipment includes both commonly used flange types for low- to medium-pressure piping systems:

• Weld Neck Raised Face (WNRF) Flanges
• Slip-On Raised Face (SORF) Flanges

These flanges are widely applied in pipelines where secure welding performance, ease of installation, and long-term sealing reliability are essential.

Sizes, Pressure Ratings, and Standards

Haihao Group supplied flanges in a broad size range to match different pipeline specifications:

Nominal sizes:

• 1/2″, 3/4″, 1″, 1-1/2″, and 2″

Pressure ratings and systems:

• PN16 and PN40 flanges according to EN 1092-1

• JIS 10K flanges according to JIS B2220

Pipe wall compatibility:

• SCH 40

• SCH 80

This combination ensures compatibility with both European and Japanese piping systems commonly used in Southeast Asia.

Material and Surface Treatment

All flanges are forged from ASTM A105 carbon steel, known for its good strength, weldability, and cost efficiency in general industrial service.

To protect the flanges during storage and transportation, the surfaces are treated with black painting, which helps prevent corrosion before installation.

Quality Control and Manufacturing Assurance

Haihao Group follows strict quality control procedures throughout forging, machining, and finishing processes. Each flange is produced in compliance with the specified standard, ensuring proper face finish, dimensional tolerance, and pressure rating accuracy.

Our experience with EN 1092-1 PN flanges and JIS B2220 flanges allows us to support international projects with consistent quality and documentation.

Typical Applications

These A105 WNRF and SORF flanges are commonly used in:

• Water and utility pipelines
• Oil and gas auxiliary systems
• Petrochemical and chemical plants
• Power generation and general industrial piping

Their versatility makes them suitable for both permanent installations and expansion projects.

Trusted Carbon Steel Flange Supplier in Asia

With regular exports to Thailand, Singapore, and other Southeast Asian markets, Haihao Group continues to supply carbon steel flanges, weld neck flanges, and slip-on flanges that meet international standards and project-specific requirements.

We support customers with stable production capacity, flexible standards, and reliable delivery schedules.