The cooling system of pagoda roof is the most serious corrosion position in oil refinery.The carbon steel and the high-alloy steel are easy to corrode.

• 塔顶冷凝冷却系统是炼油厂腐蚀最严重的部位,寻求新材料代替碳钢、高合金钢等腐蚀比较严重的材料,是工程应用的需求。