Effect of Repository Environment on Corrosion of Cold-Rolling Products in Steel Mill

JIANG Renzhi; GAO Jing; CAI Yuncheng; WANG Ling

doi:10.11973/fsyfh-202111008

Corrosion & Protection > 2021 > 42(11): 56-60. > DOI: 10.11973/fsyfh-202111008

JIANG Renzhi, GAO Jing, CAI Yuncheng, WANG Ling. Effect of Repository Environment on Corrosion of Cold-Rolling Products in Steel Mill[J]. Corrosion & Protection, 2021, 42(11): 56-60. DOI: 10.11973/fsyfh-202111008

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Effect of Repository Environment on Corrosion of Cold-Rolling Products in Steel Mill

1. Analytical & Testing Center, Huazhong University of Science & Technology, Wuhan 430074, China;
2. Hubei Provincial Academy of Eco-Environmental Sciences, Wuhan 430074, China

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Received Date: June 17, 2021

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A large area of corrosion was found on the surface of cold-roll products in the repository of a steel mill, and preliminary analysis showed that the atmospheric environment of the repository was corrosive to a certain extent. The corrosion on the surface of cold-rolled steel with ultra-low carbon was investigated in the repository by atmospheric coupon test and scanning electron microscopy. And the atmospheric environmental parameters of the repository were simultaneously monitored. Results show that a warm and moist environment and high content of HCl were the main causes of corrosion. With targeted technical reform, the corrosion of cold-rolled steel in the repository was significantly reduced.
- ultra-low carbon steel,
- corrosion,
- technical reform

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