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Flanges

Products / Flanges
Product Category

Flanges

Weld-neck, slip-on, blind, threaded and lap-joint flanges to ASME B16.5 and B16.47, sourced to your pressure class and material grade.

Product Overview

Every pipe joint and equipment nozzle, correctly rated.

Flange selection depends on pressure class, facing type and material compatibility with the connecting pipe or equipment. AST sources flanges matched exactly to your piping specification, with full material traceability.

Typical Types

Flange Types

  • Weld-neck & slip-on
  • Blind & threaded
  • Lap-joint flanges
Standards

Standards & Codes

  • ASME B16.5
  • ASME B16.47 (large diameter)
  • ASME B16.20 / B16.21 (gaskets)
Materials

Available Materials

  • Carbon & stainless steel
  • Alloy steel
  • Forged construction
Applications

Typical Applications

  • Pipe joint connections
  • Equipment nozzle connections
  • Valve & fitting terminations

Need flanges to a specific pressure class?

Share your rating (150# to 2500#) and facing type for a qualified quotation.