Haihao Group Supplies Hot-Dip Galvanized Threaded Flanges to Singapore

Haihao Group has successfully delivered a batch of hot-dip galvanized threaded flanges to a customer in Singapore, supporting a small-diameter piping system for industrial use. The supplied flanges are RF threaded flanges with NPT threads, manufactured in strict accordance with ASME B16.5 and produced from ASTM A105N carbon steel, followed by hot-dip galvanizing for enhanced corrosion resistance.

Threaded Flange Specification

The galvanized threaded flanges supplied for this project meet the following specifications:

• Product: Threaded Flange RF × NPT

• Nominal Size: 0.5 inch

• Pressure Rating: Class 150

• Standard: ASME B16.5

• Material: ASTM A105N carbon steel

• Surface Treatment: Hot-dip galvanized

All dimensions, threads, and surface finishes were inspected before shipment to ensure compliance with customer and standard requirements.

Hot-Dip Galvanized ASTM A105N Threaded Flanges

ASTM A105N threaded flanges are widely used in low- to medium-pressure piping systems where welding is not preferred. The NPT threaded connection allows easy installation and maintenance, especially in compact or retrofit applications.

For this order, hot-dip galvanizing was applied to improve resistance to corrosion and moisture, making the 0.5 inch Class 150 galvanized threaded flange suitable for outdoor installations and humid operating environments commonly found in Singapore.

Manufacturing and Quality Assurance

Each ASME B16.5 Class 150 threaded flange supplied by Haihao Group undergoes strict quality control procedures, including:

• Raw material chemical and mechanical verification

• Thread accuracy inspection (NPT thread)

• Dimensional checks according to ASME B16.5

• Galvanizing thickness and surface uniformity inspection

Only flanges that fully meet technical and visual requirements are approved for delivery.

Reliable Galvanized Flange Supplier

With extensive experience supplying galvanized threaded flanges to Singapore, Haihao Group continues to support industrial piping, utility systems, and general engineering projects across Southeast Asia.

From carbon steel threaded flanges to customized surface-treated flange solutions, Haihao Group provides reliable products, stable delivery schedules, and consistent quality assurance.