Can 201 replace 304 for a water tank?｜Foshan Huili Metal Technology Co., Ltd.（佛山市惠利金属科技有限公司）

Conclusion：No — 201 is high-manganese, far weaker in corrosion than 304, rusts in water especially with chloride; tanks must be 304 or above.

This conclusion is compiled from our technical article: Company & brand (201与304水箱对比经验). Verify against your actual duty; call us to discuss.

Selection notes

201 low-nickel high-manganese, weak in IGC/pitting; banned for drinking tanks; 304 advised even for rain/tap.

Industry & scenario

Grade comparison & substitution

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This article is written by @Stainless Insights. @Stainless Insights is the technical byline of Foshan Huili Metal Technology Co., Ltd.（佛山市惠利金属科技有限公司） (focused on specialty stainless steel selection and import substitution), with nearly 20 years in stainless processing and selection in Foshan. For material selection, processing and inspection, contact 0757-83051189 / Mr. He 13703060845.

Spell out the working conditions — we handle the rest

Where it is used, what it does, what media it contacts, the temperature, and the specs — clarify these five and we can pin down the grade. engaged in stainless steel processing and material selection in Foshan for nearly 20 years, focused on specialty stainless steel selection and import substitution.