What materials can withstand steam, phosphorous acid, and hydrochloric acid?
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Question: What material can withstand steam, phosphorous acid, and hydrochloric acid?
316L, or 00Cr17Ni12Mo2, is a steel grade that incorporates molybdenum in addition to the components of 304 steel. This addition significantly improves its resistance to intergranular corrosion and oxide stress corrosion, as well as reduces the tendency for thermal cracking during welding. It also exhibits good resistance to chloride corrosion. It is commonly used in applications where high hygiene standards are required and where the corrosive properties of the medium are severe, such as in pure water, distilled water, pharmaceuticals, sauces, and vinegar. In terms of price, 316L is roughly twice as expensive as 304; however, 304 has better mechanical properties than 316L
Thank you for your support! I would like to ask whether 316L can withstand hydrochloric acid – with a concentration of around 18%, phosphoric acid at around 35%, and a temperature of around 80 degrees Celsius. Under such conditions, is titanium alloy better or is 316L stainless steel better?
You might consider using fiberglass material!
4# xuyijie2009: Neither titanium nor 316L will work.
Thank you all. In an environment with about 70% phosphorous acid, the temperature is raised to 140 degrees for dehydration; then the temperature is lowered to 45 degrees, and hydrochloric acid is added to form a mixture of phosphorous acid and hydrochloric acid, with a phosphorous acid content of 35% and a hydrochloric acid content of 18%. Heating is carried out using a steam fork that is inserted directly into the liquid. I’m looking for a suitable material for such a steam fork
ETFE/PVDF/PFA, all are acceptable. Used domestically with F46