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Use of a steel with excellent fracture splittability and fatigue strength in connecting rods
Use of a steel with excellent fracture splittability and fatigue strength in connecting rods
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机译:在连杆中使用断裂断裂性和疲劳强度优异的钢
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摘要
A steel for machine structural use which realizes excellent fracture splitability and fatigue strength in its as-hot forged formed articles, and which comprises, based on weight, 0.2 to less than 0.35% of C, 0.1 to 1.1% of Si, 0.1 to less than 0.3% of Mn, 0.01 to 0.2% of P, 0.01 to 0.2% of S, greater than 0.2 to 0.5% of V, 0.01 to 0.1% of Ti, 0.005 to 0.02% of N and the balance of Fe and unavoidable impurities. The steel further comprises, if necessary, one or at least two of the following elements in the following amount or amounts: 0.005 to 0.05% of Al and/or 0.05 to 0.5% of Nb, 0.1 to 0.5% of Cr and 0.1 to 0.5% of Mo.
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