U channels with a web that differs from the legs

An aluminium (aluminum) unequal channel is a U-shaped extrusion whose two legs are the same height, while the base, called the web, is a different width. That lets you match the channel to a panel, glass or sliding part without wasting metal.

Quick answer A 50 x 25 x 3 mm unequal channel (web x leg x wall) weighs about 0.76 kg per metre. Snalco extrudes it in 6063-T5 and 6061-T6.

Size and weight chart

Web x leg x wall (mm)	Weight (kg/m)	Area (mm2)
25 x 15 x 2	0.28	102
40 x 20 x 3	0.60	222
50 x 25 x 3	0.76	282
60 x 30 x 4	1.21	448
80 x 40 x 4	1.64	608
100 x 50 x 5	2.56	950

Weight = (web x wall + 2 x (leg minus wall) x wall) x 0.0027. Corner radii ignored.

Item	What Snalco can supply
Alloys	6063 T5/T6 (general sections), 6061 T4/T6 and 6082 T5/T6 (higher strength), 6005, 6060, 6463; 1XXX series on request
Standards	GB 5237-2008, JIS H, AAMA, BS, EN
Finishes	Mill finish, anodised (anodized), powder coating, wood grain, electrophoresis, PVDF paint, sand blasting, polishing
Further processing	Cutting to length, drilling, punching, bending, welding, machining, fabrication of finished parts

Where unequal channel is used

• Sliding tracks for doors, windows and covers
• Glazing channels and panel edge holders
• Partition frames and signage
• Machine guards and housings
• Cable trays and covers

Equal channel or unequal channel?

If your part is as wide as the legs are tall, the equal channel is simpler. If the part is wider or thinner than that, use an unequal channel and avoid cutting or packing the gap.

Why Snalco

• Own extrusion plant at Kosamba, Surat, built around a 1600 UST four-column hydraulic press that handles 6 inch and 7 inch billets.
• An in-house tool shop, so new dies and die corrections do not wait on an outside vendor.
• A working quality lab: spectrometer for chemistry, UTS machine, Rockwell and Brinell hardness testers, conductivity meter, metallurgical microscope and a profile projector for dimensions.
• Cutting to length, drilling, punching and machining done at the plant, so you can receive parts ready to fit.

How to order

• Section and size: dimensions in mm, wall thickness, and the profile number or drawing.
• Alloy and temper: for example 6063-T5, or 6061-T6 where more strength is needed.
• Finish: mill finish, anodised, powder coated or another finish from the list above.
• Length and quantity: cut lengths in mm or full mill lengths, and the total weight or number of pieces.
• Delivery point: a city in India or an export port, so freight and packing can be quoted.

Get a quote for your section •  Send the size, alloy, finish and quantity through the contact form, or share a drawing. The Snalco team replies with availability, lead time and a price for your quantity. •  Factory: Block No. 604/2, Kosamba, Surat, Gujarat, India.

Aluminium Unequal Channel (U-Shape) Profiles Manufacturer

Snalco’s Aluminium Extrusion unequal channels are (U-shape) extruded profiles with equal lengths of legs but unequal lengths of the bottom. We offer a wide range of aluminium unequal channel profiles with a variety of alloys, sizes and finishes. Moreover, similar to all the other aluminium extrusion sections produced by Snalco, our aluminium unequal channels can also be cut to different sizes if the existing products cannot meet your requirements.

Features and Specifications of Aluminium Unequal Channel – U Channel Profiles

Alloy	Standard	Surface Treatment	Further Process
6005 T5/T6, 6060 T5/T6, 6061 T4/T6, 6063 T5/T6, 6463 T5/T6, 6082 T5/T6, etc.	GB 5237-2008, JISH, AAMA, GB, BS, En	Mill finish, Powder Coating, Anodizing, Wooden grain, Electrophoresis, PVDF Painting, Sanding blasting, Polishing, etc.	Drilling, Bending, Welding, Precise cutting, Punching, Fabrication of finished products, etc.

Frequently asked questions

What is an unequal aluminium channel?

It is a U channel with equal legs and a web that is a different width from the leg height.

How do I find aluminium channel weight per metre?

Cross-section area in mm2 times 0.0027. Area = web x wall + 2 x (leg minus wall) x wall.

What is aluminium channel price per kg?

It follows the metal rate, alloy and finish. Send your list and quantity for a quote.

Is a C channel the same as a U channel?

No. A C channel has inward lips at the leg ends. Send a sketch if you need lips.

Is aluminum channel available anodised?

Yes. Anodised, powder coated and mill finish are available.

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