Why Stainless Steel Can Also Rust in Storage

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False corrosion caused by surface contamination, chloride environments, and improper isolation, and its prevention.

Stainless steel is not absolutely rust-free. Common causes:

1) Iron powder adhering to the surface: mixed storage with carbon steel, shared lifting gear or grinding wheels; iron powder contamination leads to localized rust.
2) Chloride environment: high humidity and salt-laden air in coastal areas can destroy the passive film.
3) Water accumulation inside packaging: wooden crates or paper packaging absorb moisture, and long-term enclosure leads to pitting corrosion.
4) Incomplete pickling: residual oxidation color on welds becomes the starting point for corrosion.

Prevention: store by zone, use dedicated lifting gear, dry dunnage, ensure ventilation, and cover with rainproof tarpaulins when necessary but do not seal.

本文由 SteelWe 编辑与行业专家整理，内容仅供行业交流参考，不构成交易或投资建议。引用请注明来源。

Why Stainless Steel Can Also Rust in Storage

False corrosion caused by surface contamination, chloride environments, and improper isolation, and its prevention.

Stainless steel is not absolutely rust-free. Common causes:

1) Iron powder adhering to the surface: mixed storage with carbon steel, shared lifting gear or grinding wheels; iron powder contamination leads to localized rust.
2) Chloride environment: high humidity and salt-laden air in coastal areas can destroy the passive film.
3) Water accumulation inside packaging: wooden crates or paper packaging absorb moisture, and long-term enclosure leads to pitting corrosion.
4) Incomplete pickling: residual oxidation color on welds becomes the starting point for corrosion.

Prevention: store by zone, use dedicated lifting gear, dry dunnage, ensure ventilation, and cover with rainproof tarpaulins when necessary but do not seal.

本文由 SteelWe 编辑与行业专家整理，内容仅供行业交流参考，不构成交易或投资建议。引用请注明来源。