new delhi japanese carmaker nissan motor co ltd will build more models using a new type of steel that combines high tensile strength with a previously unachievable degree of formability resulting in lighter vehicles that can help lower emissions while protecting occupants the company said in a press releaseaccording to the company it is the worlds first car maker to use the highformability steel with a tensile strength of 980 megapascals which was jointly developed by nissan and nippon steel sumitomo metal corp the steels combination of stamping formability and strength makes it possible to form parts with complex shapes that are thinner and lighter than those made of conventional high tensile strength steel while maintaining the ability to absorb energy in a collisionthe infiniti qx50 premium midsize suv which went on sale in the us in march front and rear side members is made from 980megapascal ultrahigh tensile strength steel along with other body frame parts nissan plans to expand the use of the material which enhances fuel efficiency as well as driving performance by lowering vehicle weight to other modelsnissan launched a sustainability plan this month that calls for lowering co2 emissions from its new vehicles by 40 per cent by fiscal year 2022 compared with fiscal year 2000the company is aggressively developing technologies to expand the use of ultrahigh tensile strength steel aiming for it to make up 25 per cent of the companys vehicle parts by weight the material makes up 27 per cent of the new qx50the 980megapascal steel developed with nippon steel sumitomo metal can be coldpressed making it suitable for mass production this will help contain increases in vehicle cost