星期三, 23 7 月, 2025
Home PV News Nissan adopts ultra high tensile steel to make light weigh cars

Nissan adopts ultra high tensile steel to make light weigh cars

Just a day after Mazda announced that its new 2012 Mazda CX 5 would feature ultra high tensile steel in its construction, Nissan has followed suit with an announcement that its cars will as well but only from 2013.


Additionally, Nissan's cars will only use 1,200 mega pascal ultra high tensile steel versus Mazda's 1,800. Nevertheless, the announcement means Nissan's vehicles will be lighter yet stronger, boosting both gas mileage and safety.


Nissan will use the lightweight stuff as steel plates for use in cold pressing structural body parts, saving up to 33 pounds on some models and making it a good alternative to more expensive aluminum. Some of the parts will include center pillar reinforcements, front and side roof rails, and other key structural components.


Developed in collaboration with Nippon Steel Corporation and Kobe Steel, Nissan's ultra high tensile steel overcomes significant obstacles. Until now, high tensile steel involved a critical trade off, increased strength came with increased rigidity and a consequent reduction in press formability.


Development of the new material was realized by a breakthrough in the ability to control its structural formation at the sub micron level in combining hard and soft layers to achieve both strength and the formability.


Once the new material was developed, extensive experimentation was required to develop an optimal spot welding methodology. This has been achieved with a proprietary process that involves careful optimization of welding pressure, current volume and power distribution.


No word yet on which model will be first to adopt the new steel but let's hope it's the 2013 Nissan GT R that we recently spied testing.

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