Vedanta Aluminium Secures Patent for Lead- and Tin-Free Bismuth-Aluminium Alloy

Vedanta Aluminium earns its first patent for a lead- and tin-free bismuth-aluminium alloy, boosting sustainable metallurgy and industrial innovation.

Bhubaneswar, Oct 17: In a major step toward sustainable innovation, Vedanta Aluminium, India’s largest aluminium producer, has secured its first patent for a lead- and tin-free bismuth-aluminium alloy, marking a breakthrough in eco-friendly metallurgy and industrial manufacturing.

Developed entirely by the company’s in-house R&D team, the new alloy offers a sustainable alternative to traditional aluminium alloys that use hazardous elements like lead and tin. By replacing them with bismuth, the alloy not only meets stringent global environmental standards but also delivers high machinability, superior mechanical strength, and enhanced performance.

According to the company, the innovation supports critical industrial applications across the automotive, electronics, and textile sectors, where precision machining is essential. The alloy is suitable for manufacturing components such as ABS manifolds, hydraulic manifolds, valve blocks, transmission sleeves, air-conditioning parts, steering yokes, drive shafts, and electrical connectors, as well as electronic components like camera parts, clock mechanisms, and mobile phone housings.

Rajiv Kumar, CEO of Vedanta Aluminium, said, “Our R&D efforts have delivered a world-class breakthrough product. This patent validates our commitment to pushing the boundaries of material science while embedding sustainability into every stage of our value chain.”

He added that the innovation was driven by growing industry demand for sustainable, high-performance alternatives to traditional machinable alloys such as AA6262 and AA6020.

Laboratory trials of the new alloy have demonstrated impressive results — 8% higher tensile strength, 21% higher yield strength, and 17% greater hardness compared to conventional grades, the company said.

The patented alloy underscores Vedanta Aluminium’s commitment to sustainable product development, aligning with national initiatives like ‘Make in India’ and ‘Atmanirbhar Bharat’, while advancing India’s journey toward Net Zero Carbon Emissions by 2050.

Through such innovations, Vedanta Aluminium continues to set new benchmarks in eco-conscious metallurgy, reinforcing its leadership in driving India’s transition toward sustainable industrial growth and advanced manufacturing.