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 Thickness | Weight (kg/m) | Alloy |
|---|
| 1082 | 9 x 9 mm | 1.25 mm | 0.079 | 6063 |
| 1084 | 12 x 12 mm | 0.85 mm | 0.082 | 6063 |
| 1087 | 25 x 19 mm | 1.40 mm | 0.240 | 6063 |
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
| Property | 6063-T5 | 6063-T6 | 6061-T6 |
|---|
| Ultimate tensile strength (min) | 150 MPa | 205 MPa | 260 MPa |
| Yield strength (min) | 110 MPa | 170 MPa | 240 MPa |
| Elongation (min) | 8% | 8% | 8% |
| Density | 2.71 g/cm3 | 2.71 g/cm3 | 2.71 g/cm3 |
| Typical use | Standard architectural angles and channels | Higher-strength architectural profiles | Structural, industrial, transport |
| Extrudability | Excellent | Excellent | Good |
| Corrosion resistance | Excellent | Excellent | Good |
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.
| Finish | Execution | Key Specs | Notes |
|---|
| Mill finish | As extruded | Natural aluminium surface | Cost-effective, suitable for concealed applications |
| Anodised | Quality-tested providers | 8 colours, glossy and matt finishes, lifelong durability | Electrochemical oxide layer for corrosion resistance |
| Powder coated | Approved partners (Jotun, Interpon) | 60 to 80 microns film thickness, 10 to 30-year warranty | Wide 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.
| Factor | Effect 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 wall | Higher total price (more material, so more weight per unit length) |
| Higher-strength alloy | Premium over standard alloy |
| Surface finish (anodised or powder coated) | Premium over mill finish |
| Retail (single piece) vs bulk order | Retail 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.