The results shows that the existence of a certain amount of abnormal granular bainite in the structure of HRB335 hot rolled steel bar is the main reason for no yield strength and brirrle fracture.

• 结果表明，HRB335热轧带肋钢筋出现一定量异常组织粒状贝氏体是拉伸脆断和无屈服强度现象的主要原因。