电网碳钢、镀锌钢大气腐蚀等级图绘制研究

郝文魁, 陈新, 徐玲铃, 韩钰, 陈云, 黄路遥, 祝志祥, 杨丙坤, 王晓芳, 张强

Drawing of Atmospheric Corrosion Map of Carbon Steel and Galvanized Steel for Power Grid

HAO Wenkui, CHEN Xin, XU Lingling, HAN Yu, CHEN Yun, HUANG Luyao, ZHU Zhixiang, YANG Bingkun, WANG Xiaofang, ZHANG Qiang

表3 大气腐蚀性分类标准

Table 3 Corrosion rate of carbon steel and galvanized steel for the first year of exposure for the different corrosion category

Corrosion category Corrosion rate of metals (rcorr / g·m-2·a-1) Carbon steel Zinc C1 rcorr≤10 rcorr≤0.7 C2 10< rcorr≤200 0.7< rcorr≤5 C3 200< rcorr≤400 5< rcorr≤15 C4 400< rcorr≤650 15< rcorr≤30 C5 650< rcorr≤1500 30< rcorr≤60 CX 1500< rcorr≤5500 60< rcorr≤180