1. CHEN Zai-zhi, MA Dang-shen. Plastic Mould Steel Application Manual [M]. Beijing: The Chemistry Industry Press, 2005 (in Chinese).
2. LUO Yi, WU Xiao-chun. Research Progress of the Work on Prehardened Plastic Mould Steel [J]. Heat Treatment of Metals, 2007, 32(12): 22 (in Chinese).
3. SONG Dong-li, GU Jian-feng, ZHANG Wei-min, et al. Numerical Simulation on Temperature and Microstructure During Quenching Process for Large-Sized AISI P20 Steel Blocks Used as Plastic Die [J]. Transactions of Materials and Heat Treatment, 2004, 25(5): 740.
4. WU Xiao-chun, ZHANG Jie, CUI Kun. The Microstructure and Mechanical Properties of Unquenched and Untempered Die Steel for Plastic Mould [J]. Journal of Huazhong University of Science and Technology, 1995, 23(12): 1 (in Chinese).
5. JIANG Lai-zhu, WANG Jiang-hui. Development of a Non-Quenched Non-Tempered Bainitic Steel for Plastic Mould: Continuous Cooling Transformation Behavior [A]. Jeglitsch F, Ebner R, Leitner H, eds. Proceedings of the 5th International Conference on Tooling [C]. Leoben: 1999. 685.