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

Conclusion：For long-term chlorinated tap-water plant tanks, prefer high-Cr-Mo ferritic grades like 445J1 over 304.

This conclusion is compiled from our technical article: 自来水厂水箱该用304还是445J1？余氯和温度是关键 (水厂水箱304还是445J1一文). Verify against your actual duty; call us to discuss.

Selection notes

304 pits under chlorinated+heated duty; prefer 445J1 high-Cr-Mo ferritic for storage.

Industry & scenario

Selection not yet decided

You may also ask

View answerWe're building a new device and haven't finalized the material yet — what stainless grade is usually used?View answerThe drawing only says 'stainless steel' with no grade specified — what should I quote?View answerThere's no existing case in our industry for this product — can you help decide the material plan too?View answerIs 304 enough for an outdoor enclosure? Will it rust within two years?View answerCan kitchen equipment use 430? It gets wet and salty every day.View answerI have the budget — if I just pick the most expensive grade, is that problem solved?

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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.