Large Diameter Butt Welded Flanges

Large Diameter Butt Welded Flanges – 24" to 48" Forgings by SSM

SSM is a leading manufacturer of large diameter butt welded flanges, offering forged flanges ranging from 24" to 48" (DN600–DN1200). Our large-diameter flanges are designed for high-pressure and high-temperature piping systems, providing reliable, leak-proof connections for critical industrial applications.

What is a Butt Welded Flange?

A Butt Welded Flange is a type of flange that is welded directly to the pipe, creating a smooth, strong connection with minimal turbulence.
Large diameter flanges are ideal for:

Pipelines with high flow rates

High-pressure systems

Applications where structural integrity is critical

Material and Standards

SSM manufactures large diameter butt welded flanges in a variety of materials:

Carbon Steel: ASTM A105, Q235

Stainless Steel: SS304, SS316L, SS321, SS347

Alloy Steel: ASTM A182 F5, F11, F22

Standards Compliance: ASME B16.5, ASME B16.47, DIN EN1092-1, GOST 12820-80

Key Features

Sizes: 24" – 48" (DN600 – DN1200)

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

Face Types: RF (Raised Face), FF (Flat Face), RTJ (Ring Type Joint)

Forged construction for maximum strength and durability

Precision machining for perfect fit and leak-proof connections

Applications

SSM's large diameter butt welded flanges are widely used in:

Oil and gas pipelines

Petrochemical plants

Power generation systems

Water treatment and desalination plants

Offshore and marine projects

Why Choose SSM?

Over 30 years of experience in flange manufacturing

Advanced forging and CNC machining for precise large-diameter flanges

ISO, PED, and TS certified production facilities

Custom sizes, pressure ratings, and marking available

Reliable global delivery and competitive pricing

Conclusion

For high-quality large diameter butt welded flanges (24"–48"), SSM is your trusted manufacturer. Our forged flanges ensure strength, durability, and precise fit for demanding industrial applications.

📩 Contact SSM today for quotations, drawings, or custom flange solutions.

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