Research and Development of BWR4 Weather-resistant Hot-rolled Wire Rod
The production technology of BWR4 weather-resistant hot-rolled wire rod by Shougangchanggang is introduced in this study.The key parameters of smelting,refining,billet and 55 ten thousand tons rod-wire compound production line are determined.The mechanical properties of rolled wire rod are stable.The qualified rate of 1/3 cold top forging is 100%,atmospheric corrosion resistance index is larger than 6.54.The quality index of rolled wire rod meets the standard requirements of Hot Rolled Wire Rod and Round Steel for Fasteners of Weathering Steel Structure.At the same time,the quality of wire rod well meets the user's processing 5.8 grade bolts use requirements.