Aluminum Buttweld Elbow

An aluminum buttweld elbow is a pipe fitting that changes the direction of an aluminum pipe or tube. The elbow is welded directly to the pipe at both ends, which gives a strong, permanent joint.

GNEE is a manufacturer and exporter of aluminum pipe fittings. We supply aluminum buttweld elbows in 45° and 90° angles, long radius (LR) and short radius (SR), in common alloys and sizes. Send us your size and quantity for a price.

Specifications of Aluminum Buttweld Elbow

Standards note: ASME B16.9 is a dimension standard for buttwelding fittings. ASTM B361 is the material standard for factory-made wrought aluminum welding fittings. For aluminum elbows, we make to B16.9 dimensions and supply material per B361 requirements.

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90 Degree Aluminum buttweld elbow

45 Degree Aluminum Buttweld Elbow

Long Radius Aluminum Buttweld Elbow

Short Radius Aluminum Buttweld Elbow

Sizes and Dimensions

Common sizes and approximate outside diameters (standard IPS pipe OD):

Standard center-to-end dimensions (A for 90° LR, B for 45°, A for 90° SR), approximate, per ASME B16.9:

These are reference values only. Confirm the final dimensions against the standard and the pipe you use. If your pipe is metric tube or a non-standard OD, tell us the exact OD and wall thickness - do not order by nominal size alone.

Alloys and Tempers

Most general piping jobs use 6061 or 6082. Use 5083 / 5086 for saltwater or marine work. If you are not sure which alloy fits your job, send us the working conditions and we will advise.

Note on welding: for 6061-T6 and other heat-treatable alloys, the weld heat-affected zone is softer than the original T6 material. This is normal for aluminum. For high-pressure or high-temperature lines, have the welded joint design checked by the pipework engineer.

Manufacturing

How an elbow is made depends on size, alloy and quantity:

Formed from aluminum tube or pipe - the most common route for standard sizes.

Rolled and seam-welded from plate - used for larger diameters.

Machined - for custom dimensions, special ends or close tolerances.

Not every alloy and size can be made every way. We confirm the production method before quoting.

Common Applications of Aluminum buttweld elbow

Real-world uses of aluminum buttweld elbows:

Compressed air lines in workshops and factories

Cooling water and process water lines

HVAC and chiller water piping

Fresh water and seawater cooling lines on boats and ships (5083 / 5086)

Handrails and light structural pipework (6063)

Dust and ventilation ducting

Low-pressure process piping where aluminum is suitable

Aluminum is picked for these jobs because it is light, does not rust, and often costs less than stainless steel. For pressure lines, gas lines or high-temperature service, confirm the alloy and the welding procedure with us before ordering.

HVAC Refrigeration

Marine piping

Low-pressure process piping

Compressed air lines

Buttweld vs Threaded Elbow

Buttweld elbows are the usual choice when the piping is designed for welded joints and permanent installation.

Quality and Inspection

Standard checks we can arrange:

Inspection level is agreed before production. Third-party inspection can be arranged if your project requires it.

Price, MOQ and Delivery

Price: depends on alloy, size, wall thickness and quantity. Send the details and we reply with a quote within 1–2 working days.

MOQ: no strict minimum for standard sizes. The unit price is better for larger quantities.

Lead time: about 15–30 days for standard sizes, depending on quantity.

Shipping: sea freight for bulk orders, air or express for small quantities. We export worldwide.

Payment: T/T normally; other terms can be discussed.

How to Order

Send us this list and we will quote you:

Alloy and temper (e.g. 6061-T6, 5083)

Size: NPS / DN or exact outside diameter

Wall thickness

Angle: 45° or 90°

Radius: LR or SR

Quantity

Standard or drawing, if any

Destination country and port

Any documents needed (MTC, inspection report)

FAQ

What is an aluminum buttweld elbow? A pipe fitting that changes the direction of aluminum piping. The elbow is welded to the pipe at both ends.

What is the difference between LR and SR elbows? Long radius (LR) elbows have a larger bend and less flow resistance. Short radius (SR) elbows save space but have more flow resistance. LR is the common default.

Can you supply 6061-T6 aluminum elbows? Yes, 6061-T6 is our most common alloy for general industrial piping. Note that the weld area will be softer than the T6 base material, which is normal for this alloy.

Do you export aluminum fittings? Yes. We export worldwide by sea, air or express. Give us the destination port for a freight quote.

Do you make custom sizes? Yes. If you provide a drawing, or the exact pipe OD, wall thickness and angle, we can confirm whether it can be made and quote you.

Request a Quote

Buy aluminum buttweld elbows direct from GNEE. Send your alloy, size, wall thickness, angle, radius, quantity and destination, and we will reply with price and delivery time within 1–2 working days.

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