Unclad Aluminium Fin Stock & Sheet, Made in India
Flat-rolled unclad aluminium fin stock for radiators, condensers, intercoolers and other heat exchangers. Jointly developed by Varun Radiators and Vishal Aluminium, it is a reliable Indian alternative to imported fin stock, tested in real production before launch.
Typical specifications
| Parameter | Value |
|---|---|
| Product | Unclad aluminium fin stock and sheet, in coils |
| Alloy | 3003 series (other alloys on request) |
| Temper | H0, H14, H16 (custom tempers on request) |
| Width | 16 mm and above, tolerance ±0.25 mm |
| Thickness | 0.06 mm and above, tolerance ±0.005 mm |
| Flatness and edge quality | Consistent across coils |
| Suitable fin types | Louvered, wave, dimple and plain fins |
Why Indian heat exchanger makers switch to us
Heat exchanger manufacturers need allocated capacity, reliable supply, a full product range and quick responses. Indian fin stock has historically fallen short on all four. We built this product to close that gap.
- Allocated capacity and dependable supply: a scalable rolling facility, with 70% of its space reserved for expansion.
- Consistent quality batch to batch: dimensional consistency, formability and process stability checked on every lot.
- Proven formability: validated on louvered, wave, dimple and plain fins in production conditions.
- Quick, sensible response: application support from a heat exchanger manufacturer that uses this fin stock itself.
- Reduce import dependency: Made in India, with shorter lead times and no import exposure.
Tested in real applications
We did not launch from a lab sample. Development took three years, with multiple iterations on material selection, process optimisation and trials. Varun Radiators then used the fin stock internally for one full year across all its heat exchanger lines, with continuous monitoring and field trials, before offering it to other manufacturers.
Who makes it
| Partner | Role |
|---|---|
| Vishal Aluminium Pvt. Ltd. | Fully integrated flat-rolled manufacturing: smelter, continuous caster, reversible cold rolling mills, foil rolling mill, annealing, slitting, roll grinding and tool room. Full laboratory for physical and mechanical testing. Owns product specifications, manufacturing control and the quality management system. |
| Varun Radiators Pvt. Ltd. | 25 years of brazed aluminium heat exchanger manufacturing. Owns product development, application validation, performance evaluation and business development. |
The two companies have worked together for over 15 years.
Customisation
Because manufacturing is fully integrated from smelting to slitting, alloy, temper, width and thickness can be adjusted to your heat exchanger design. Send your current fin stock specification and we will confirm a match.
Frequently asked questions
Is this clad or unclad fin stock?
Unclad.
Can I trial it before switching?
Yes. We supply sample coils for trial runs on your fin mill.
Do you also supply sheet?
Yes, unclad aluminium sheet in the same alloys and tempers.
Contact
Business development: Utkarsh Kumar
Phone: +91 7600 045 730
Email: utkarsh.kumar@varunradiators.com
Technical: Kalil Mehta
Phone: +91 76000 45727
Email: kalil@varunradiators.com
Send your specification and required volume to request samples or a quote.