This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Steel in Control

  • Magazine Feature Article
  • 13AEID0702_03
Published July 02, 2013 by SAE International in United States
Sector:
Language:
  • English

Hyundai Steel develops a new 780-MPa grade of hot-rolled high-strength steel for application in a one-piece front lower control arm, displaying the potential for an 8% mass reduction.

In response to environmental and safety concerns, automakers are aggressively trying to increase the application of high-strength lightweight materials such as aluminum, magnesium alloys, and advanced high-strength steel (AHSS) to body and structural components. AHSS sheet materials have a tensile stress range from 500- to 800-MPa grade and are considered an alternative material for structural chassis components due to their relatively low cost when compared with other lightweight materials including aluminum and magnesium alloys.

Some major automakers use AHSS with tensile strength higher than 590-MPa grade in body-in-white and chassis components, for more than 60% of the total steel products.