Research predicts: the application of advanced high-strength steel in the automotive industry will increase significantly

A recent study by the American Iron and Steel Association and industry market research firm Ducker Worldwide estimates that from 2007 to 2009, the use of advanced high-strength steel (AHSS) in light-duty vehicles will increase to more than 4% of the weight of the entire car; During this period, the average weight of each car was reduced by 163 pounds.

More than half of the cars produced worldwide use a certain proportion of AHSS materials. The most used is the new BMW X6, which is made of AHSS with 32% of the body structure and partitions.

The study predicts that by 2020, as automakers must work to achieve fuel economy standards of 35 miles per gallon of gasoline, the annual growth rate of AHSS will reach 10%. Ducker's researchers estimate that in order to achieve this goal It is necessary to replace approximately 650 pounds of low carbon steel, high strength steel and iron with 350 pounds of duplex stainless steel, martensitic steel, boron steel and other AHSS, and a small amount of aluminum, magnesium and polymeric materials.

Studies have shown that in order to achieve the required fuel economy improvement, the weight reduction of the car body will play at least 25%, and the remaining gaps need to be improved through the automotive power system and other technologies (such as drag reduction technology, low rolling resistance tires and 42 Volt electrical system) to make up.

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