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由中国建筑科学研究院、唐山钢铁公司等十余个科研、高等院校和施工单位合作,采用唐山钢铁公司研制生产的低碳微合金(B20MnSi)Φ6.5热轧盘条拔制而成的Φ5中强度钢丝,强度不低于800N/mm~2,延伸率(δ_(100))不少于4％,松驰损失(1000小时)不超过7％,反复弯曲(180°)不低于4次,是一种强度和塑性指标较好的新钢材。用它来代替目前采用
More than ten scientific research institutes, universities and construction units such as the Chinese Academy of Building Research and Tangshan Iron and Steel Co., Ltd. cooperated to use the low-carbon microalloyed (B20MnSi) Φ6.5 hot rolling coils developed and produced by Tangshan Iron and Steel Company. Φ5 medium strength steel wire, strength not less than 800N/mm~2, elongation (δ_(100)) of no less than 4%, relaxation loss (1000 hours) no more than 7%, repeated bending (180°) no less than Four times, it is a new steel with good strength and plasticity index. Use it instead of the current one