Phosphoric acid. Ni-o-nel alloy is one of the most useful materials avail able for equipment in the production and handling of wet process phos phoric acid. It has given from 2 to 6 times the service of other resistant alloys in such items as reactor tanks, heat exchangers, parts of defluorina tion systems, and evaporator baffle plates, cylinder and dip pipes. Nitric acid mixtures. Ni-o-nel alloy is resistant to nitric acid solutions of practically all temperatures and concentrations and shows promise for handling such mixtures as nitricsulfuric, nitric-phosphoric and some nitric-hydrofluoric acid solutions.
Pressure-tested Ni-o-nel alloy Platecoil® are now being produced in all standard forms and dimensions. See text below for details.
How to heat up destructive corrosives fast... with Platecoil® units made of Inco's new Ni-o-nel* alloy... ... high heat transfer with field-proven resistance to certain hot acids and oxidizing chemicals Now, from Tranter Manufacturing, Inc., comes word t h a t Platecoil® m a d e of N i - o - n e l * n i c k e l - i r o n chromium alloy can be obtained from them in all sizes. These Ni-o-nel alloy units provide all the known heat transfer advan tages of Tranter Platecoil® construc tion . .. plus highly useful resistance to many hot, strong acids and oxidiz ing chemicals and to stress-corrosion cracking. Heat treatment is not re quired after welding.
What corrosives are handled by N i - o - n e l ?
Sulfuric acid. Ni-o-nel alloy has been found highly useful for handling hot sulfuric acid solutions, up to about 70% concentration at 176° F and up to about 40% concentration at boil ing temperatures. Tranter Platecoil® used for heating a 12% (by wt) sul furic acid pickling bath maintained at 170°F have lasted considerably longer than the previously used alloy.
Organic acids. The alloy is resistant to most organic acids and has excel lent resistance to boiling concen trated acetic acid, acetic-formic mix tures, maleic and phthalic acid and a number of others. Sea water and chlorides. This alloy not only resists a wide range of chemical corrosives but also certain troublesome salt cooling w a t e r s , making it particularly adaptable for heat exchanger equipment. It resists pitting in salt water and has excel lent resistance to stress-corrosion cracking. For more i n f o r m a t i o n . . .
If you would like engineering speci fications on Platecoil® made of Ni-o-nel alloy, write Tranter Manu facturing, Inc., Lansing 9, Michigan. To learn more about the properties of Ni-o-nel alloy, write Inco for "En gineering Properties of Ni-o-nel." *Inco trademark
What Platecoil® are
Tranter Platecoil® are two 14- or 16-gauge metal sheets (one or both embossed) which are seam or spot welded together to form channels for heating or cooling media. They provide a low-weight, large heat-transfer surface in small space. HUNTINGTON ALLOY PRODUCTS DIVISION The I n t e r n a t i o n a l Nickel C o m p a n y , Inc. 6 7 W a l l Street N e w York 5, N . Y .
NI-O-NEL® V O U 5 1 , NO. Π
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NOVEMBER 1959
35 A
