本文件旨在向腐蚀工程师提供材料和检验指南，指导其在无水氨环境中使用碳钢和低合金钢容器。这也是关于液氨储存操作中这些材料应力腐蚀开裂（SCC）的最新报告。

The purpose of this document is to provide materials and inspection guidelines to the corrosion engineer on the use of carbon and low-alloy steel vessels in anhydrous ammonia service. This also serves as a state-of-the-art report on stress corrosion cracking (SCC) of these materials in liquid ammonia storage operations.