Custom aluminium extrusion profiles in 7 alloys across the 6000 series. Two press lines, 4,800 TPA capacity. BIS/ISI and ISO 9001 & 14001 certified. Extruded at Dabaspet, Bangalore.
Custom and standard extrusion profiles from our own plant at Dabaspet, Bangalore. 7 alloys across the 6000 series, 4 tempers. Solid, semi-hollow, and hollow cross-sections from 0.7 mm wall thickness. How extrusion works | Standard profiles from ready stock
Casement, sliding, and fixed window profiles. 6063 for architectural use. See aluminium profile for window sections.
Structural glazing, curtain wall, shopfront, and glass partition profiles. Extruded to project dimensions. Double glazed glass rebate channels up to 50 mm.
Channels, T-profiles, L-profiles, and corner profiles, standard from stock or custom dimensions. Aluminium angles and channels in 6063 from ready stock.
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Skirting profiles, edge trims, cover strips, and decorative mouldings. Tight tolerances and smooth finishes for anodising or powder coating.
Solar mounts, heat sinks, bus bars (6101B), automotive, and OEM profiles. 6005, 6061, 6082, and 6351 for higher-strength applications. Aluminium machining available for assembled components.
| Alloy | Strength Class | Key Characteristics | Primary Applications |
|---|---|---|---|
| 6063 | Medium-low | Excellent extrudability, smooth finish, good corrosion resistance. The standard architectural alloy. | Windows, doors, curtain walls, furniture, railings |
| 6060 | Medium-low | Similar to 6063 with even better extrudability. Suited to complex thin-walled shapes. | Complex architectural profiles, intricate cross-sections |
| 6061 | Medium | Higher strength than 6063, good weldability. Structural alloy. | Structural components, automotive, transport |
| 6005 | Medium | Better extrudability than 6061 at comparable strength. | Railway and bus body structures, ladders, utility poles |
| 6082 | Medium-high | Highest strength among common 6000 series alloys. Good machinability. | Heavy-duty structural, bridges, trusses, transport |
| 6351 | Medium-high | High strength with good formability. | Heavy structural profiles, transport, high-load applications |
| 6101B | Medium-low | Optimised for electrical conductivity. | Electrical bus bars, conductors, power distribution |
| Temper | Process | Typical Use |
|---|---|---|
| T4 | As-extruded, naturally aged | Applications requiring maximum formability before further ageing |
| T5 | Air-cooled from extrusion, artificially aged | Architectural, structural, and high-strength applications; preferred where tolerances are tighter, as a slower quench rate minimises distortion. |
| T6 | Air-cooled, artificially aged | Standard temper for architectural, structural, and high-strength applications |
| T66 | Higher strength with corrosion resistance, used sparsely | Typically 6063 where both strength and corrosion resistance are needed |
| Finish | Key Specs |
|---|---|
| Mill finish | As extruded, natural aluminium surface |
| Anodised | 8 colours, glossy and matt, lifelong durability |
| Powder coated | Jotun and Interpon, 60 to 80 microns, 10 to 30 year warranty |
In-house shot blasting is available for surface preparation before coating or anodising. Mechanical finishes including hair line brush finish and matte buffing are also available. For full finishing specifications, see aluminium sections. For applications that require bending or forming after extrusion, discuss alloy and temper selection with the technical team before ordering.
Need help selecting the right alloy, temper, or finish for a specific application? Contact us at +91 80 2670 9928 or email sales@karnatakametal.com for technical guidance.
| Parameter | Specification |
|---|---|
| Plant area | 50,000 sq ft |
| Location | Dabaspet (Sompura Industrial Area), Bangalore |
| Casting furnace | 6-tonne capacity |
| Extrusion presses | Two hydraulic press lines (4-inch and 6/7-inch) |
| Ageing furnace | In-house artificial ageing for T5, T6, and T66 tempers |
| Combined capacity | 4,800 tonnes per annum (450 tonnes/month maximum) |
| Die shop | In-house die design and manufacturing centre |
| Alloy range | 7 alloys: 6063, 6060, 6061, 6005, 6082, 6351, 6101B |
| Tempers | T4, T5, T6, T66 |
| Minimum wall thickness | 0.7 mm (thin-walled and complex shapes) |
| Quality lab | In-house German spectrometer and Japanese measurement instruments |
| Packing and dispatch | Dedicated packing area with a weighbridge |
| Certifications | ISO 9001 & 14001 (TUV audited), BIS/ISI certified |
We extrude in 7 alloys (6063, 6060, 6061, 6005, 6082, 6351, 6101B) with 4 temper options (T4, T5, T6, T66). Whether the application is architectural, structural, electrical, or transport, the right alloy is available from one source.
Karnataka Metal Company is not a trader or reseller of extruded profiles. Profiles are manufactured at our own 50,000 sq ft plant at Dabaspet, Bangalore, with two press lines and a combined capacity of 4,800 tonnes per annum.
Complex hollow, semi-hollow, and solid cross-sections with a minimum wall thickness of 0.7 mm. Custom profiles account for a significant share of extrusion production. Contact us for die design timelines and costing.
Every extrusion batch is tested for alloy composition and dimensional accuracy at our in-house laboratory before dispatch. Profiles are manufactured to IS 733 and BIS/ISI standards. Equipment details are listed in the infrastructure section above.
From raw extrusion to finished, surface-treated, machined product under one management. Karnataka Metal Company offers aluminium machining (cutting, drilling, punching, tapping, assembly) and in-house shot blasting, with anodising and powder coating outsourced but fully managed, at the same Bangalore campus.
Extrusion processes are audited by TUV under ISO 9001:2015 and ISO 14001:2015. Profiles carry the BIS Standard Mark as required under the BIS Quality Control Order effective April 2025. With mandatory BIS certification now in force, every profile from this plant meets the national quality standard.
Whether the requirement is a custom extrusion profile to a new die design or a standard aluminium profile for an ongoing project, contact us for technical guidance, alloy recommendations, and pricing.
For architects and specifiers: share your profile drawing or cross-section requirements and we will advise on alloy selection, temper, finish, and lead time. Walk-in consultations are available at our retail outlet on A.M Road, Bangalore.