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介绍了我国钢筋研制、生产、使用基本情况，阐述了我国热轧钢筋标准自１９５２年颁布执行以来所经历的８次修订，将热轧钢筋标准的演变与发展划分为四个阶段。
The basic situation of research, production and use of steel bar in our country was introduced. Eight revisions that China ’s hot rolled steel bar standard went through since its enactment in 1952 were introduced. The evolution and development of hot rolled steel bar standard were divided into four stages.