ASME B16.5 Forged A105 RF 5" DN125 Long Welding Neck Flange

ASME B16.5 Forged A105 RF 5" DN125 Long Welding Neck Flange – SSM

SSM supplies high-quality forged A105 carbon steel flanges, including 5" DN125 Long Welding Neck Flanges, manufactured according to ASME B16.5 standards. These flanges are designed for high-pressure, high-temperature, and industrial piping systems, providing reliable, leak-proof connections for critical applications.

What is a Long Welding Neck Flange?

A Long Welding Neck (LWN) Flange features a long tapered hub that is welded to a pipe, which allows:

Smooth stress distribution at the weld joint

Reduced turbulence and erosion in the pipeline

Enhanced fatigue resistance in high-pressure or high-temperature systems

The RF (Raised Face) design improves sealing performance with gaskets and ensures tight, leak-free connections.

Material and Specifications

Material: ASTM A105 Carbon Steel

Size: 5" (DN125)

Face Type: Raised Face (RF)

Standard: ASME B16.5

Pressure Classes: 150#, 300#, 600#, 900#, 1500#

Manufacturing Process: Forged for superior strength and durability

Applications

SSM's Long Welding Neck Flanges are widely used in:

Oil and gas pipelines

Petrochemical and chemical plants

Power plants and water treatment systems

Offshore and marine pipelines

High-pressure or high-temperature industrial applications

Why Choose SSM?

Over 30 years of expertise in flange manufacturing

Advanced forging and CNC machining for precision flanges

Certified by ISO, PED, and TS for quality assurance

Custom sizes, pressure ratings, and surface finishes available

Fast global delivery and competitive pricing

Conclusion

For ASME B16.5 Forged A105 RF 5" DN125 Long Welding Neck Flanges, SSM provides high-quality, durable, and precise solutions for industrial piping systems.

📩 Contact SSM today for quotations or technical support for your flange requirements.

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