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通过疲旁试验证明,20MnSi钢筋母材及焊接试件的疲劳强度与16Mn钢筋基本一致,用20MnSi钢筋代替16Mn钢筋是可行的。
Through the fatigue test, it is proved that the fatigue strength of 20MnSi steel bar and welded specimen is basically the same as that of 16Mn steel bar. It is feasible to use 20MnSi steel instead of 16Mn steel bar.