Weld Neck Flanges

YOUR SOURCE FOR WELD NECK FLANGES

Weld Neck Pipe Flanges

Weld neck flanges delivering the highest joint integrity for demanding piping applications. Long tapered hub, full penetration butt weld, and radiographic inspectability.

About Weld Neck Flanges

We maintain one of the largest inventories of weld neck flanges in the Houston area. Every flange is manufactured to ASME, ANSI, and API standards with full material traceability and certification.

Weld neck flanges delivering the highest joint integrity for demanding piping applications. Long tapered hub, full penetration butt weld, and radiographic inspectability.

Product Specifications

Material Grades

A105, A182 F304/F316/F321, A182 F5/F9/F11/F22/F91, A350 LF2

Size Range

1/2" through 60" and larger custom sizes available

Standards

ASME B16.5, B16.47, API 605, MSS SP-44

Industries Served

High-Pressure Process

High-Temperature Steam

Offshore Platforms

Nuclear Piping

Cryogenic Service

Data Center Infrastructure

We supply flanges for data center cooling systems, fire suppression piping, and critical infrastructure. Hyperscale facilities require precision-manufactured flanges that meet demanding specifications for reliability and performance.

Frequently Asked Questions

Why are weld neck flanges the preferred choice for critical service?+

The long tapered hub provides a gradual transition from pipe to flange, minimizing stress concentration. The butt weld joint allows full radiographic examination per code, and the forged one-piece construction eliminates potential defects found in multi-piece assemblies.

What schedule pipe does a weld neck flange bore match?+

Weld neck flanges are available in standard bore (matching standard weight pipe), heavy bore (matching extra heavy/XH pipe), and special bore sizes. The bore must match the connected pipe ID for proper weld alignment.

Ready to Get Started?

Contact us for competitive pricing, technical specifications, and fast delivery on weld neck flanges.