奥氏体不锈钢材料制造及使用过程中常见问题及预防

doi:10.3969/j.issn.1006-8805.2020.04.007

Petro-chemical Equipment Technology ›› 2020, Vol. 41 ›› Issue (4): 32-36.doi: 10.3969/j.issn.1006-8805.2020.04.007

• MATERIAL AND WELDING • Previous Articles Next Articles

Common Problems in Manufacturing and Using Process of Austenitic Stainless Steel and Prevention

Zhang Guoxin¹, Ma Wei²

1. SINOPEC Guangzhou Engineering Company Limited, Guangzhou, Guangdong, 510620;
2. Zhongke (Guangdong) Refinery & Petrochemical Company Limited, Zhanjiang, Guangdong, 524076

Received:2020-03-31 Accepted:2020-06-25 Online:2020-07-13 Published:2020-07-13

Abstract

Abstract: Austenitic stainless steels are the most widely used materials in equipment and pipelines in oil refining and chemical industry, mostly used in corrosion-resistant and high-temperature-resistant workplaces. At high-temperature and high-pressure workplaces in refining and hydrogenation plants, type 321 and 347 stainless steel are often used in manufacturing process pipelines. However, many damage cases have occurred in these two types of austenitic stainless steels during welding, heat treatment and use. Based on the above reasons, this paper expounds the types of hot cracks in austenitic stainless steel, the causes and mechanism of intergranular corrosion and preventive measures, which can provide reference for relevant engineers in this field.

Key words: austenitic stainless steel, heating crack, mechanism, welding, control

Zhang Guoxin, Ma Wei. Common Problems in Manufacturing and Using Process of Austenitic Stainless Steel and Prevention[J].Petro-chemical Equipment Technology, 2020, 41(4): 32-36.

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Common Problems in Manufacturing and Using Process of Austenitic Stainless Steel and Prevention

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