Thread and size
Provide the required thread designation and nominal pipe size from the drawing, specification or existing component. Do not rely on size alone to identify the connection.
Aluminum pipe flanges
Aluminum Threaded Pipe Flanges
Specify the thread, nominal pipe size, alloy, pressure class, facing, bore and quantity for a practical quote review.
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Specified for the joint
Threaded flanges that keep the pipe connection defined.
A threaded aluminum pipe flange is a specific connection choice, not simply a flange with a matching nominal size. The thread form, pipe size, alloy, pressure class, facing, bore, drilling, mating component and quantity all need to agree before the joint can be reviewed.
Aluminum Pipe Fittings lists threaded flanges within its aluminum flange range, alongside 5083, 5086 and 6061-T6 material options. Start with the drawing, material list or markings on the existing component so the connection can be evaluated as a complete assembly.
Flange styleThreaded connection
Aluminum options5083, 5086 and 6061-T6
Review detailsThread, class and facing
Confirm the threaded connection before choosing the flange.
The pipe thread is part of the connection, so it needs to be identified with the same care as the flange face or bolt pattern. A nominal pipe size does not by itself establish the thread designation, thread condition or mating requirement. Use the project documents or the markings on the existing part to identify the thread information that governs the joint.
Threaded flanges are one of several flange styles listed by Aluminum Pipe Fittings. They serve a different connection approach than weld neck, slip-on, socket weld, lap joint or blind flanges. The right choice comes from the system design and the parts already at the joint. Do not substitute a flange style because the outside diameter or nominal pipe size appears close.
Mating-component review
Match the face, class and drilling to the other side.
A threaded pipe connection does not remove the need to confirm the flange features that control the bolted joint. Check the pressure class, facing, bore, bolt-hole pattern and any dimensions shown on the drawing against the mating flange, valve, vessel nozzle or fabricated component.
For replacement work, photos, markings, measured dimensions and information from the mating part are more useful than an incomplete item description. For new work, use the piping isometric, flange schedule or bill of materials to keep the thread and flange details tied to the same specified connection.
Keep alloy and service requirements with the full description.
The listed aluminum flange material options are 5083, 5086 and 6061-T6. State the required alloy in the request rather than assuming it from a previous order or the visible appearance of the part. The drawing, material list and applicable job requirements should establish the final selection.
Include any documentation, traceability or certification requirements with the initial request. If the threaded flange needs to join an existing aluminum piping system, share the known details of the existing material and the mating component. That gives the team a clearer basis for determining whether the proposed connection matches the actual joint.
For a new assembly, identify the thread designation, nominal pipe size, alloy, pressure class, facing, bore and drilling as a set. For a replacement, add the old flange's markings, bolt count, outside diameter, bolt-circle details and photographs where available. The complete record is safer than trying to fill in missing details after a part has been quoted.
Use the drawing when a threaded flange must fit existing work.
Threaded flanges can connect to pipe, a valve, a vessel nozzle or a fabricated section. The neighboring components affect the practical fit, so the most useful request shows the whole connection rather than only the flange. Include the relevant line or detail from the drawing, or provide clear photographs and measured information for an existing installation.
If the connection needs a nonstandard bore, face, drilling pattern, hub detail or other special feature, identify that in the request. Aluminum Pipe Fittings lists standard and custom flange configurations, and clear project information helps distinguish a standard review from a custom requirement.
When several components must work together, submit the related flanges, fittings and pipe details in one package. That gives the sales team the context to review the threaded flange against the full assembly and respond with a more useful quote path.
Quote checklist
Send the connection details that matter.
- Thread designation and nominal pipe size
- 5083, 5086 or 6061-T6 alloy requirement
- Pressure class, facing, bore and drilling details
- Mating-component details, drawings or replacement photos
- Quantity, delivery location and needed-by date
Frequently asked questions
Aluminum threaded pipe flanges
What should I include in an aluminum threaded pipe flange request?
Include the thread designation, nominal pipe size, required alloy, pressure class, facing, bore, drilling details, quantity and the relevant drawing or mating-component information.
Which aluminum alloys are available for threaded pipe flanges?
The aluminum flange range lists 5083, 5086 and 6061-T6 material options. State the required alloy in the request so it can be reviewed with the complete connection requirement.
Why is the thread designation important for a threaded flange?
The thread is part of the pipe connection. The drawing, specification or existing component markings should identify the required thread information alongside the flange size and other joint details.
Can a threaded flange be reviewed for a replacement connection?
Yes. Provide photos, markings, nominal pipe size, thread information, measured dimensions and details of the mating component so the requested flange can be reviewed against the existing joint.
Ready to quote aluminum threaded pipe flanges?
Send the thread, flange and mating-component details for a practical review.