What are the requirements regarding chlorine content in insulation materials (such as magnesium aluminum silicate, rock wool, glass wool, etc.) for stainless steel pipes and other chromium-containing steel pipes?

2007-12-06View Original

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What are the requirements regarding chlorine content in insulation materials (such as magnesium aluminum silicate, rock wool, glass wool, etc.) for stainless steel pipes and other chromium-containing steel pipes? What is the required chlorine content? What is the standard basis?

Reply #22009-02-01

V. The chemical properties of thermal insulation materials and their products should be stable, and they must not have a corrosive effect on metals. When used in austenitic stainless steel equipment or pipelines, its chloride ion content shall meet the allowable range shown in Figure 2.1.1; it can also be verified using the following formula:

Reply #32009-02-02

I remember it being supposed to be below 25ppm!

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What are the requirements regarding chlorine content in insulation materials (such as magnesium aluminum silicate, rock wool, glass wool, etc.) for stainless steel pipes and other chromium-containing steel pipes?

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