Production of hot rolled steel sheet having excellent workability, baking hardenability and room temperature delayed aging property
专利汇可以提供Production of hot rolled steel sheet having excellent workability, baking hardenability and room temperature delayed aging property专利检索，专利查询，专利分析的服务。并且PURPOSE: To produce a hot rolled steel sheet having excellent workability, baking hardenability and room temp. delayed aging property by subjecting a steel having a specific compsn. consisting of C, Si, Mn, S, N, Al, and Fe to heating to a specific temp., then to specific rolling and coiling.
CONSTITUTION: The steel stock which contains 0.0030W0.0150wt.% C, ≤0.30% Si, 0.10W1.00% Mn, ≤0.015% S, 0.0010W0.0050% N, and (Nx27/14)×5W0.050% SolAl, and consists of the balance Fe and unavoidable impurities is heated to 1100W1250°C and is then rolled. The finish rolling is ended in a temp. range of (Ar
3 transformation point -50°C)W970°C. The hot rolled sheet is then coiled in a temp. region of 600W700°C. The easily workable hot rolled steel sheet which is adequate for deep drawing and strict flanging, can be imparted with a high yield strength by a painting baking treatment after working and does not age and deteriorate at room temp. is thereby obtd.
COPYRIGHT: (C)1989,JPO&Japio，下面是Production of hot rolled steel sheet having excellent workability, baking hardenability and room temperature delayed aging property专利的具体信息内容。
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