Cost Reduction for Concrete Reinforcing Steel Bar Production for Wire Rod,Bar and Spooler Line According to the Requirements of International Standards

【摘要】：正During recent years,the cost of production for concrete reinforcement steel bars has increased due to many factors. These include energy costs and labour costs,but a significant factor is the cost of alloys and micro alloys such as Vanadium, which have traditionally been required to meet the mechanical properties.An increasing number of customers world-wide, who are currently using the micro alloying method for increasing the mechanical properties of the concrete reinforcement,are demanding alternative methods which to reduce or eliminate the cost for micro alloys.This paper will analyse the requirements of the latest US and international standards,and discuss in detail the process advantages and limitations of techniques that can be used to reduce the production cost.