Effect of tempering temperature on microstructure and hardness of carburized layer on high carbon H13 steel

doi:10.13251/j.issn.0254-6051.2025.04.043

Abstract

Abstract: In order to improve the surface hardness and wear resistance of high carbon H13 steel, carburizing+quenching and tempering processes were carried out, and the microstructure and hardness were analyzed. The results show that the carburizing+quenching and tempering processes can significantly improve the hardness of the steel. After carburizing at 920 ℃, quenching at 1050 ℃ and tempering at 510 ℃, the hardness of the high carbon H13 steel is the highest. Compared with that treated only by quenching-tempering, the high-carbon H13 steel cutter ring treated by this process can increase the tunneling distance by about 36% under the same wear conditions.

Key words: H13 steel, carburizing, tempering temperature, hardness, tunneling distance

CLC Number:

TG156.5

Guo Hao, Li Zhilong, Wang Biao, Shang Yong, Yang Dongcai, Wang Hua. Effect of tempering temperature on microstructure and hardness of carburized layer on high carbon H13 steel[J]. Heat Treatment of Metals, 2025, 50(4): 277-282.

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