Haihao Group Supplies Inconel 625 Socket Weld Flanges to Singapore

Haihao Group has successfully completed the supply of nickel alloy socket weld flanges for a customer in Singapore. The shipment included Inconel 625 (UNS N06625) socket weld flanges with raised face (RF), designed for high-pressure and corrosive service conditions.

All products were manufactured in strict compliance with ASME B16.5 dimensional standards and ASTM B564 material requirements, and fully met NACE MR-01-75 specifications.

Socket Weld Flange Specifications

The supplied flanges covered two pressure classes:

1/2” Socket Weld Flange

• Type: Socket Weld Flange (SWE)

• Facing: RF (Raised Face)

• Size: 1/2”

• Pipe Schedule: SCH 40S

• Pressure Rating: Class 300

• Material: Nickel Alloy Inconel 625 (UNS N06625)

• Standard: ASME B16.5 / ASTM B564

• Service: NACE MR-01-75 compliant

3/4” Socket Weld Flange

• Type: Socket Weld Flange (SWE)

• Facing: RF (Raised Face)

• Size: 3/4”

• Pipe Schedule: SCH 40S

• Pressure Rating: Class 600

• Material: Nickel Alloy Inconel 625 (UNS N06625)

• Standard: ASME B16.5 / ASTM B564

• Service: NACE MR-01-75 compliant

Why Inconel 625 Socket Weld Flanges

Inconel 625 is a nickel-chromium-molybdenum alloy widely used in aggressive environments due to its excellent corrosion resistance and mechanical strength.

Key advantages include:

• Outstanding resistance to pitting and crevice corrosion
• Excellent performance in chloride and sulfur-containing environments
• High strength without heat treatment
• Proven suitability for high-pressure socket weld flange applications

The socket weld design is particularly suitable for small-diameter, high-pressure piping systems, providing reliable strength and leak-tight performance.

Typical Applications

Inconel 625 socket weld flanges are commonly used in:

• Offshore and onshore oil & gas piping
• Chemical processing plants
• Marine and seawater systems
• High-pressure instrumentation lines

Quality Control and Documentation

To ensure consistent quality, Haihao Group applies strict inspection procedures, including:

• Chemical composition testing for UNS N06625
• Dimensional inspection per ASME B16.5
• Pressure rating verification
• Surface and facing inspection (RF)
• Full traceability with inspection and test documentation

Haihao Group – Trusted Nickel Alloy Flange Manufacturer

Haihao Group supplies a full range of nickel alloy flanges, including socket weld, weld neck, slip-on, and blind flanges, covering materials such as Inconel, Incoloy, Monel, Duplex, and Super Duplex stainless steel.

With extensive export experience to Singapore and Southeast Asia, we provide stable quality, flexible customization, and reliable delivery for critical piping projects.