Rio Tinto launches new aluminium alloy for lighter car wheels

Rio Tinto has developed Revolution-Al™, a new aluminium alloy that could reduce the weight of wheels by 7 per cent. Revolution-Al™ is the latest addition to Rio Tinto’s High Strength 3xx Series Alloys.

Rio Tinto Aluminium chief executive Alf Barrios said: “As we partner with customers we’re seeing an increasing demand for specialised alloys and other products to meet their specific needs. Developing these products is at the heart of our business, from research and development, to offering technical expertise and marketing as well as collaborating with OEMs.”

The new aluminium alloy could also be applicable to other market segments (ex. chassis parts such as suspension or braking parts, tools).

Among its benefits include:
- Wheel design improvement provides opportunities to improve visual appearance, tire performance, vehicle handling and manoeuvrability as well as reduce CO2 emissions and tire wear;
- Lighter wheel with a 7% weight reduction versus its standard design—resulting in improved fuel efficiency and reduced CO2 emissions;
- 15 to 20% stronger than traditional wheel alloy A356.2 (which allows the wheel weight reduction); and
- Easy and cost-efficient manufacturing solution:
- Seamless transition with existing casting processes—allowing manufacturers to use their existing tooling.

Rio Tinto vice president of Sales and Marketing Tolga Egrilmezer said: “Revolution-Al™ is a clear example of how we aim to be the partner of choice, in order to deliver responsible solutions to our customers and the whole manufacturing ecosystem. Our new wheel alloy is stronger, allowing designers to make a lighter wheel, which in turn can make cars safer and more appealing to end consumers, in addition to having reduced CO2 emissions.”