Transactions of Materials and Heat Treatment

Title：Microstructure and property of hot rolled and pickled steel STC330R for enameling

Authors： Guo Zifeng Feng Jun Zhang Yan Li Wenyuan Li Yupeng Zhou Na

Unit： Shougang Research Institute of Technology Beijing Key Laboratory of Green Recyclable Process for Iron & Steel Production Technology Shougang Co. Ltd. Qian′an Steel Corp

KeyWords： hot rolled and pickled steel for enameling STC330R metallographic structure mechanical property antisquama burst performance

ClassificationCode：TG335.35

year,vol(issue):pagenumber：2017,42(10):170-173

Abstract：

The production process and composition design of hot rolled and pickled steel STC330R for enameling of Shougang were briefly introduced, and the mechanical properties, metallographic structures and precipitated phase of STC330R were investigated under two different hot rolling schemes. Then, the influences of size and distribution of precipitation phase on hydrogen permeation time of products under different hot rolling processes were analyzed. The result indicates that based on the low carbon and manganese composition system，the micro alloy is strengthened by adding small amounts of Ti, and the matrix microstructure of hot rolled and pickled steel STC330R for enameling is composed of ferrite and pearlite by proper hot rolling process. Thus, the fine TiC particles are uniformly distributed inside grains, and the mechanical properties of STC330R meet the standard requirements. In addition, the hydrogen penetration time is longer than that of other same grade products, which means excellent antisquama burst performance.

Funds：

首钢总公司科技项目（2014科1-5）

作者简介：郭子峰（1984-），男，博士，工程师，E-mail：guozifeng@shougang.com.cn

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