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AssigneeHyundai Steel Company
InventorsByung Gil Yoo, Hyeong Hyeop Do, Chee Woong Song, Do Hak Kim, Young Mun Shin, Soon Geun Jang, Sang Mun Hong
Estimating the term…
In accordance with one aspect of the present disclosure, there is provided a steel material for a tailor-welded blank, including 0.04 to 0.06 wt % of carbon (C), 1.2 to 1.5 wt % of manganese (Mn), 0.01 to 0.10 wt % of titanium (Ti), 0.01 to 0.10 wt % of niobium (Nb), and the balance of iron (Fe) and inevitable impurities; having a tensile strength (TS) of 550 MPa or greater, a yield strength (YS) of 300 MPa or greater, and an elongation (EL) of 20% or greater; and having a dual-phase structure of ferrite and martensite.
A steel material for a tailor-welded blank, comprising 0.04 to 0.06 wt % of carbon, 1.2 to 1.4 wt % of manganese, 0.07 to 0.10 wt % of titanium, 0.01 to 0.10 wt % of niobium, 0 wt % of molybdenum, and the balance of iron and inevitable impurities, and
Dependencies are inferred from the claim text.