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


All Product Categories
Browse the full AST product range.
Need flanges to a specific pressure class?
Share your rating (150# to 2500#) and facing type for a qualified quotation.
