Effect of chemical composition on heat treatment properties of X32 steel for bimetal saw blade

doi:10.13251/j.issn.0254-6051.2023.05.014

Abstract

Abstract: Two X32 steels with different contents of C and N were prepared in order to develop novel X32 steel material with lower alloy content and more economical production cost. The feasibility was discussed through the characterization of properties and microstructure. The static CCT curves of two X32 steels were presented, and microstructure and mechanical properties of the hot rolled intermediate billet of these two steels after heat treatment were studied. The heat treatment experimental result was verified by industrial trial production of the two X32 steel cold strips. The research shows that X32 steel can achieve obvious microstructure refinement, strength and hardness improvement by increasing C and N content by adopting V-C and V-N microalloying technology. Therefore, without affecting quality, it is feasible to reduce the content of Ni, Cr and Mo alloy but increasing the content of C and N by using V-C and V-N microalloying technology, which points out the direction for developing new X32 steel with more economic production cost.

Key words: X32 steel, steel for bimetal saw blade, alloy tool steel, heat treatment

CLC Number:

TG161

Zeng Bin, Wang Jing, Liang Liang, Chen Gang, Su Bin. Effect of chemical composition on heat treatment properties of X32 steel for bimetal saw blade[J]. Heat Treatment of Metals, 2023, 48(5): 83-89.

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