| 摘要 |
PROBLEM TO BE SOLVED: To provide a steel sheet having excellent weldability and workability, and also having excellent wear resistance. SOLUTION: The wear resistant steel sheet has a composition comprising 0.20 to 0.50% C, 0.1 to 1.0% Si, 0.1 to 2.0% Mn,≤0.04% P,≤0.04% S, 0.2 to 1.0% Ti, 0.2 to 4.0% W, 0.0003 to 0.01% B and≤0.01% N, and the balance Fe with inevitable impurities, and has a structure comprising Ti carbides and the compound carbides of Ti and W with the average particle diameter of≥0.5μm by≥400 pieces/mm<SP>2</SP>in total. The steel sheet may comprise one or more kinds selected from Cu, Ni and Cr and/or Al. In this way, the wear resistant steel sheet having excellent wear resistance can be obtained without being accompanied by the notable increase of hardness. COPYRIGHT: (C)2007,JPO&INPIT
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