Customized Carbon Steel A105 Weld Neck Flange

Customized Carbon Steel A105 / Q235 Weld Neck Flange | SSM

SSM specializes in the production of Customized Carbon Steel Weld Neck Flanges made from ASTM A105 and Q235 materials. Our weld neck flanges are designed to provide strong, reliable, and leak-proof connections for high-pressure and high-temperature piping systems across a wide range of industries.

🔹 What is a Weld Neck Flange?

A Weld Neck Flange (WN Flange) is a type of flange featuring a long tapered hub that is welded to a pipe.
This design ensures smooth stress distribution between the flange and the pipe, minimizing turbulence and reducing erosion at the weld area.
It is the preferred choice for critical applications involving high pressure, high temperature, or cyclic loading.

🔹 Material Options

SSM provides Weld Neck Flanges in two main carbon steel grades:

ASTM A105 – Suitable for high-temperature and high-pressure service; commonly used in oil, gas, and chemical plants.

Q235 (Equivalent to ASTM A36) – A general-purpose structural carbon steel offering good weldability and mechanical strength, ideal for low- and medium-pressure systems.

Both materials can be supplied with custom coatings, such as:

Anti-rust black paint

Zinc or galvanization

PTFE (Teflon) coating

Custom color coatings upon request

🔹 Key Features

Manufactured according to ASME / ANSI B16.5 or EN / DIN standards

Available pressure classes: 150#, 300#, 600#, 900#

Sizes: ½" to 48" (DN15–DN1200)

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

Smooth surface finish and precise bolt hole alignment

Optional custom logo marking, machining tolerance, and heat treatment

🔹 Applications

SSM's Customized Carbon Steel A105 / Q235 Weld Neck Flanges are widely used in:

Oil and gas transmission pipelines

Petrochemical plants

Power generation systems

Water supply and treatment

Heavy machinery and structural engineering

🔹 Why Choose SSM

30+ years of manufacturing experience

Advanced CNC machining and forging equipment

ISO, PED, and TS certified production

Full material traceability and test reports (MTC EN10204 3.1)

Fast global delivery and flexible customization

Conclusion

If you are looking for Customized Carbon Steel A105 or Q235 Weld Neck Flanges, SSM provides high-quality, precisely engineered solutions tailored to your specific project needs.
Our products ensure excellent performance, durability, and full compliance with international standards.

📞 Contact SSM today for quotations, drawings, or technical support for your customized flange requirements.

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