The heat-exchanger tubesheet cracked from chloride stress-corrosion — what material to switch to?｜Foshan Huili Metal Technology Co., Ltd.（佛山市惠利金属科技有限公司）

Conclusion：2507 resists chloride SCC and allows downgauging; 904L resists reducing acids. Grade by medium — can't simply swap to a pricier grade.

This conclusion is compiled from our technical article: 2507超级双相钢和904L差在哪？PREN值决定适用边界 (2507和904L一文（PREN与介质分档）). Verify against your actual duty; call us to discuss.

Selection notes

2507 resists chloride SCC & downgauge; 904L resists reducing acids; grade by medium.

Industry & scenario

Failure cases

You may also ask

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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.