Reliable Flange Solutions for Global Industrial Projects — Haihao Group Supplies A105N Forged Flanges to Singapore

Haihao Group has once again demonstrated its commitment to global project reliability by successfully supplying a new batch of A105N carbon steel flanges to a key industrial pipeline project in Singapore. The shipment includes both Slip-On (SO) RF flanges and Weld Neck (WN) RF flanges, meticulously manufactured in accordance with ASME B16.5 and ASME B16.47-B standards to ensure performance and safety under demanding conditions.

Precision Manufacturing to International Standards

The supplied products consist of:

• 5-inch SO RF flanges, Class 150, produced to ASME B16.5,

• 36-inch WN RF flanges, Class 150, SCH XS, meeting ASME B16.47-B specifications.

Each flange is made from ASTM A105N forged carbon steel, a material widely recognized for its excellent mechanical strength, weldability, and impact resistance. This makes it ideal for pipeline systems in industries such as petrochemical, power generation, and offshore energy.

Surface Protection and Long-Term Durability

To enhance durability and resist corrosion during transport and installation, all flanges were coated with protective black paint. This surface treatment helps reduce oxidation, ensuring reliable sealing and extended service life even in humid or coastal environments – a common challenge in Southeast Asian project sites.

Trusted Industrial Flange Supplier

As a global industrial flange manufacturer and exporter, Haihao Group continuously improves its production process through CNC precision machining, strict dimensional inspection, and non-destructive testing (NDT). These measures guarantee consistent quality across all product batches, meeting both international codes and client-specific project requirements.

Over the years, Haihao has become a trusted supplier for EPC contractors, oil & gas operators, and pipeline fabricators worldwide, offering a complete range of forged flanges, fittings, elbows, reducers, and special alloy components.

Commitment to Excellence

This successful shipment to Singapore further highlights Haihao Group’s ability to provide customized flange solutions that combine engineering precision, material integrity, and on-time delivery. Whether for high-pressure pipeline systems or large-diameter assemblies, Haihao continues to support its global partners with dependable flange products built for performance and reliability.