Haihao Group Ships High-Quality Carbon Steel Flanges to Singapore
Haihao Group has completed another successful shipment of carbon steel flanges for a valued customer in Singapore. The products include weld neck flanges and galvanized blind flanges, both manufactured to ASME B16.5 Class 150 standards. Designed for strength and durability, these flanges meet the high-quality expectations of the international piping industry.
The shipment demonstrates Haihao’s ability to deliver precision-engineered piping components that comply with global standards and meet customized project needs in Southeast Asia.
Product Details
The supplied flanges are manufactured under strict quality control and industry-certified specifications:
- Product Type: Weld Neck Flange (RF) & Blind Flange (FF, Galvanized)
- Standard: ASME B16.5
- Pressure Rating: Class 150
- Size Range: 1.5 inch – 16 inch
- Thickness: SCH 100 (for 16″)
- Material: ASTM A105N & ASTM A105N Galvanized
- Surface Finish: Hot-dip galvanized (for FF flanges)
The weld neck flange ensures strong mechanical connection and excellent fatigue resistance in high-pressure pipelines, while the galvanized blind flange provides superior corrosion protection for sealing pipe ends in harsh environments.
Precision Engineering and Quality Assurance
Haihao Group adheres to ASME, ASTM, and ISO quality systems in every stage of production—from forging and machining to inspection and packaging.
Every flange undergoes:
- Dimensional accuracy and surface flatness testing
- Pressure and sealing performance verification
- Galvanized coating thickness inspection
- Material traceability documentation
This commitment to excellence ensures that all Haihao products meet both engineering and safety standards demanded by industrial clients worldwide.
Applications and Advantages
These ASME B16.5 carbon steel flanges are suitable for applications in:
- Oil and gas processing systems
- Petrochemical plants
- Power generation units
- Marine and offshore projects
- Industrial water and air systems
The hot-dip galvanized coating on blind flanges provides extra corrosion resistance, especially ideal for coastal and humid environments like Singapore.
Global Expertise and Local Support
With decades of manufacturing experience, Haihao Group is a trusted global supplier of forged flanges, fittings, and steel piping systems.
Our products are used in over 80 countries, and we continue to strengthen partnerships by offering technical expertise, timely delivery, and reliable after-sales service.


