1985-02-01

Development of TS 980MPa Grade Cold-Rolled, High-Strength Steel Sheet with High Ductility 850117

In response to an increasing demand of high strength steel sheets for automobiles, study was carried out to develop TS 980MPa (100kgf/mm2) grade cold rolled dual phase steel sheet which can be used for the manufacturing of, for instance, bumper reinforcement and door impact beams.First, the process conditions of water-quenching-type continuous annealing were investigated to establish the concepts on the optimum dual phase microstructure which guarantees high strength and good ductility.Secondly, solution hardening by typical chemical elements: carbon, silicon, manganese and phosphorus, was discussed to find the most beneficial way to maintain good ductility in the strengthening of the steel sheet.Mill production of the TS 980MPa grade steel sheet proved to have good ductility which now can replace the conventional TS 784MPa grade steel sheet.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 43% off list price.
Login to see discount.
Special Offer: Purchase more aerospace standards and aerospace material specifications and save! AeroPaks off a customized subscription plan that lets you pay for just the documents that you need, when you need them.
X