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通过研制开发 46 0MPa及 5 0 0MPa级热轧带肋钢筋的生产实践 ,认为适当提高Mn含量并采用微合金化工艺生产 46 0MPa及 5 0 0MPa级高强热轧带肋钢筋 ,是目前提高建筑用钢筋强度较为经济的生产工艺
Through the research and development of 46 0MPa and 500MPa hot-rolled ribbed bar production practice, it is considered that increasing the Mn content and producing high-strength hot-rolled ribbed steel bar of 46 0MPa and 500MPa by micro-alloying are the key technologies to improve the construction Steel strength more economical production process