In the process of oil and gas production, there are sometimes conditions of lower temperatures. Low temperatures increase the risk of brittle failure of metal materials such as carbon steel, leading to damage to pipelines or other process facilities. Especially when pipelines or process facilities are at a higher stress level, or there are some initial defects, the metal embrittlement caused by low temperatures may cause destructive accidents. In engineering history, accidents caused by low temperatures are very rare, but once they occur, they often cause huge losses and harm.