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Aluminium Angles and Channels: L, C, and U Profiles in Standard and Custom Sizes

Aluminium angles and channels in 6063 alloy. Equal leg, unequal leg, C-channel, and U-channel. BIS/ISI certified. Available from ready stock in Bangalore.

+91 80 2670 9928
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500+ Profiles
In Standard Stock
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6063
BIS/ISI Certified Alloy
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ISO 9001 & 14001
TUV Certified
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50+ Years
In Aluminium Since 1974
Aluminium angles and channels in standard sizes by Karnataka Metal Company

Aluminium angles are L-section profiles, and channels are U/C-section profiles, used as framing, trim, and support members across construction, fabrication, and interiors. Karnataka Metal Company supplies both types of profiles in 6063 alloy.

See aluminium sections for the full standard profile range.

Types of Aluminium Angles and Channels

Karnataka Metal Company stocks and extrudes aluminium angles and channels in the following types, all available in 6063 alloy.

The stocked cut length is 12 ft. If another size is required it can be manufactured as per MOQ. In addition to the tables below, more sizes are available in our catalogue and can be manufactured on order.

Aluminium angle profiles in equal and unequal leg L-section cross-sections

Aluminium Angles (Equal and Unequal Leg)

L-section aluminium angles in equal leg (12x12 to 75x75 mm) and unequal leg (15x25 to 20x130 mm) sizes. Used for window frames, corner protection, stair nosings, edge trims, racking, and cladding support. 6063-T5/T6 as standard.

Aluminium U/C-channel profile cross-sections

U/C-Channel

Standard channels (U and C profiles, used interchangeably) in 10 to 100 mm widths. Used for glazing beads, track rails, partition framing, and panel mounting. 6063-T5/T6 as standard.

Anodised and powder coated aluminium angle and channel profiles in various colours

Anodised and Powder Coated Angles and Channels

Finished aluminium angles and channels with anodised coating (8 colours, lifelong durability) or powder coating (Jotun and Interpon, 10-30 year warranty). For architectural trim, shopfronts, furniture, and display units.

Aluminium Angle and Channel Sizes, Weight Chart and Specifications

Standard Aluminium Angle Sizes and Weight Chart

Below are the aluminium angle sizes currently stocked by Karnataka Metal Company in 6063 alloy, with section numbers and weights from our standard profile catalogue. There are more sizes available in the catalogue. For the full range of profiles, download the standard profile catalogue below.

Equal Angles
Section No.Size (A x B)Wall ThicknessWeight (kg/m)Alloy
105512 x 12 mm1.10 mm0.0686063
105819 x 19 mm2.00 mm0.2056063
106125 x 25 mm1.10 mm0.1456063
106225 x 25 mm1.50 mm0.1966063
106325 x 25 mm1.70 mm0.2226063
106525 x 25 mm3.00 mm0.4056063
106638 x 38 mm2.00 mm0.3956063
106838 x 38 mm3.00 mm0.5936063
107050 x 50 mm2.00 mm0.5336063
107150 x 50 mm3.00 mm0.8006063
Close-up of aluminium angle and channel profiles showing L, U, and C cross-sections in multiple sizes
Unequal Angles
Section No.Size (A x B)Wall ThicknessWeight (kg/m)Alloy
105238 x 25 mm2.00 mm0.3066063
105438 x 25 mm2.75 mm0.4496063
104150 x 25 mm1.50 mm0.2976063
Standard Aluminium Channel Sizes and Weight Chart

Below are the aluminium U-channel sizes currently stocked by Karnataka Metal Company in 6063 alloy, with section numbers and weights from our standard profile catalogue. There are more sizes available in the catalogue. For the full range of profiles, download the standard profile catalogue below.

Section No.Size (A x B)Wall ThicknessWeight (kg/m)Alloy
10829 x 9 mm1.25 mm0.0796063
108412 x 12 mm0.85 mm0.0826063
108725 x 19 mm1.40 mm0.2406063

The sizes above are a guide, not a fixed list. Our stock shifts with market demand and keeps growing, so reach out to confirm what is currently available. If a size is not in stock, we can run a fresh lot from an existing design or cut a custom die.

Standard Lengths: 3.66 m (12 ft). Custom cut lengths are available on request.

Alloy and Mechanical Properties
Property6063-T56063-T66061-T6
Ultimate tensile strength (min)150 MPa205 MPa260 MPa
Yield strength (min)110 MPa170 MPa240 MPa
Elongation (min)8%8%8%
Density2.71 g/cm32.71 g/cm32.71 g/cm3
Typical useStandard architectural angles and channelsHigher-strength architectural profilesStructural, industrial, transport
ExtrudabilityExcellentExcellentGood
Corrosion resistanceExcellentExcellentGood

6063 is the standard alloy for architectural aluminium angles and channels. 6061 should be specified where structural load-bearing capacity is the primary requirement. For a detailed comparison, read the guide on 6063 vs 6061 aluminium.

Surface Finishes Available

All surface finishing is coordinated through Karnataka Metal Company as your single supplier.

FinishExecutionKey SpecsNotes
Mill finishAs extrudedNatural aluminium surfaceCost-effective, suitable for concealed applications
AnodisedQuality-tested providers8 colours, glossy and matt finishes, lifelong durabilityElectrochemical oxide layer for corrosion resistance
Powder coatedApproved partners (Jotun, Interpon)60 to 80 microns film thickness, 10 to 30-year warrantyWide colour range, weather-resistant

For applications requiring surface preparation before finishing, Karnataka Metal Company offers in-house shot blasting (SS316 shots, 8 tonnes/day capacity, profiles any length). We also offer mechanical finishes, including hairline brush finish and matte buffing.

For details on temper options, see the guide on aluminium tempers.

Fabrication and Machining

Fabrication can be done in-house. Where angles are used as cleats, we fabricate them into finished components to the customer's specification, and decorative patterns or shapes can be punched for customers using angles and channels as decorative trims.

Aluminium Angle and Channel Price Guide

Aluminium angle and channel pricing depends on the profile type, size, wall thickness, alloy, temper, surface finish, and order quantity. All angles and channels are sold on a per-kilogram basis, for both bulk and retail orders.

FactorEffect on Price
Profile type (angle vs channel)Channels are typically priced slightly higher than equal-leg angles of similar size due to the additional material, although the price/kg will be the same.
Larger size and thicker wallHigher total price (more material, so more weight per unit length)
Higher-strength alloyPremium over standard alloy
Surface finish (anodised or powder coated)Premium over mill finish
Retail (single piece) vs bulk orderRetail pricing higher per kg than bulk

Aluminium is a traded commodity, so raw material prices keep moving with the market and pricing is never fixed. Extrusion pricing is benchmarked to the current NALCO (National Aluminium Company, the Government of India's primary aluminium producer) ingot (grade IE07) or billet (grade CH10) price, with a conversion charge of typically 15 to 20% added on top for the extrusion work.

Availability and Ordering

Standard aluminium angles and channels are available from ready stock at the Bangalore retail outlet on A.M Road for immediate pickup, with single-piece quantities available to walk-in buyers and no minimum order. Orders for Kerala and other South Indian states are dispatched from Bangalore. Non-standard sizes and bulk or project quantities are made to order and MOQs apply.

For current pricing, stock availability, or to place an order, contact Karnataka Metal Company at +91 80 2670 9928 or email sales@karnatakametal.com.

Aluminium Angle and Channel Applications

Aluminium angle and channel profiles used in window and door frame construction

Window and Door Framing

Angles for corner joints and reinforcement in window and door systems. Channels for glazing beads and glass retention in window and door glazing, with purpose-made profiles used for curtain wall systems. Karnataka Metal Company also supplies toughened glass for integrated facade projects.

Aluminium angle and channel profiles used as wall corner guards, tile trims, and floor transition strips

Edge Protection, Trims, and Transitions

Angles as wall and column corner guards, tile edge trims, and stair nosings. Channels as floor transition strips, threshold profiles, and edge protection for counters and panels. Mill finish, anodised, or powder coated to match the interior.

Aluminium angle profiles used in shelving and display unit frames

Furniture, Racking, and Display

Angles for shelving brackets, modular racking, server racks, and table frames. Channels for sliding systems and panel mounting. Anodised and powder coated finishes for exposed furniture and retail display applications.

Aluminium channel profiles used for glass partition framing in an office

Partitions and Interior Fit-out

Channels for office partitions, glass cabin dividers, and demountable wall systems. Angles for corner framing and reinforcement. For complete framing solutions, see aluminium sections.

Aluminium angle profiles used in industrial frameworks and structural assemblies

Industrial and Structural

Aluminium angles and channels for machine guards, conveyor supports, and structural assemblies. For complete assemblies, see machining services. For custom profiles, see aluminium profiles.

Industries We Supply

Building and Construction

Window frame angles, glazing channels, corner protection, cladding support

Fabrication and Engineering

Frames, brackets, supports, gratings, gates and grilles

Industrial and Manufacturing

Machine guards, equipment frames, conveyor supports, work platforms

Furniture and Interior

Shelving brackets, partition channels, display framing, edge trims

Our Clients

Pan-India
Delivery Across India
50+ Clients
Across India
Own Plant
Extruded at Dabaspet & Trusted Partners
In-House Quality Lab
Every Batch Tested Before Dispatch

Why Choose Karnataka Metal Company for Aluminium Angles and Channels

Transparent, Weight-Accurate Billing

You are billed only for the actual net metal weight of your angles and channels, based on standard section weights. We never inflate weights or add the weight of powder coating, anodising, or packaging to your invoice.

Own Extrusion Plant and Trusted Partners

Angles and channels extruded at our own 50,000 sq ft plant at Dabaspet, Bangalore (4,800 TPA capacity), for consistent quality and shorter lead times.

BIS/ISI and ISO 9001 & 14001 Certified

Every aluminium angle and channel carries the BIS Standard Mark as required under the Quality Control Order effective April 2025. Extrusion processes audited by TUV under ISO 9001:2015 and ISO 14001:2015.

Integrated Glass and Aluminium Supplier

The only integrated glass and aluminium company in South India. Source aluminium channels for glazing systems alongside toughened glass and DGU from a single supplier.

Surface Finishing Under One Roof

Anodising (8 colours), powder coating (Jotun and Interpon, 10-30 year warranty), and shot blasting (any length) coordinated as your single supplier. Mill finish to fully finished profiles from one source.

Custom Angles and Channels on Demand

Non-standard aluminium angle and channel sizes extruded to your drawing. Custom die design handled in-house. For complex cross-sections beyond standard L and U shapes, see aluminium profiles.

Get in Touch

We supply aluminium angles and channels to fabricators, contractors, furniture manufacturers, and OEM buyers across South India.

Karnataka Metal Company aluminium retail outlet at A.M Road, Bangalore
Retail Outlet16 and 17, A.M Road, Kalasipalya Extension, Bangalore 560002
Extrusion PlantDabaspet (Sompura Industrial Area), Bangalore
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Common Questions

Frequently Asked Questions

What sizes of aluminium angles are available? +
Equal-leg aluminium angles from 12 x 12 mm to 75 x 75 mm and unequal-leg angles from 15 x 25 mm to 20 x 130 mm are stocked in 6063-T5/T6. Wall thickness ranges from 1.0 to 10.0 mm, depending on size. Standard length is 3.66 m (12 ft). For non-standard sizes, see aluminium profiles.
What is the difference between a C-channel and a U-channel in aluminium? +
In aluminium, the terms C-channel and U-channel are commonly used interchangeably for the same U-shaped section. What matters is the size, not the label, so just share the base width, flange height, and wall thickness you need.
What is the price of aluminium angles and channels per kg? +
Pricing depends on profile type, size, wall thickness, surface finish, and order quantity. All pricing is on a per-kilogram basis, for both retail and bulk orders. Contact Karnataka Metal Company at +91 80 2670 9928 or email sales@karnatakametal.com for current pricing.
What is the difference between 6063 and 6061 aluminium angles and channels? +
6063-T6 (205 MPa tensile strength) is the standard alloy for architectural and general-purpose angles and channels. 6061-T6 (260 MPa tensile strength) is specified where higher structural strength is required, such as machine frames and heavy-duty racking. For a detailed comparison, read the guide on 6063 vs 6061 aluminium.
Can aluminium angles and channels be powder coated or anodised? +
Yes. Anodising is available in 8 colours (glossy and matt, lifelong durability). Powder coating uses Jotun and Interpon approved powders with 60-80 micron film thickness and 10-30 year warranty. Both services are coordinated through Karnataka Metal Company as your single supplier.
What are aluminium angles and channels used for? +
Aluminium angles are used for window frames, corner joints, racking, and structural framing. Aluminium channels are used for glazing beads, partition framing, track rails, and panel mounting. Both are used across construction, fabrication, furniture, and industrial applications.
What is the weight of aluminium angle and channel per metre? +
Weight varies by size and wall thickness. For example, a 25 x 25 mm angle (2 mm wall) weighs approximately 0.25 kg/m, while a 25 x 25 mm U-channel (2 mm wall) weighs approximately 0.38 kg/m. See the weight charts in the specifications section above for all standard sizes.