Alleima is expanding short lead time availability for its nitric acid alloy in the US

Alleima, is a global manufacturer of products in advanced stainless steels and special alloys. Alleima 2RE10 is an austenitic stainless steel with extremely low carbon and impurity contents. It is characterised by resistance to corrosion in nitric acid, strong resistance to intergranular corrosion, and good weldability. It was developed by Alleima to combat corrosion issues in nitric acid service.

“We now offer Alleima 2RE10 tubes to our customers in the Americas with short lead times. There are many benefits to [the alloy] depending on process conditions. It has a significantly longer equipment life compared to 304L or other 300 series austenitics. The cost is also considerably lower compared to zirconium. [It] has a well-established history of reliability in service for nitric acid producers,” says Tony Bugno, Technical Product Manager, Heat Exchanger and Fertilizer, Tube Americas, at Alleima.

Applications: seamless tube and pipe

The alloy is particularly suited to heat exchanger tubes and pipes in processes that handle nitric acid. For example, the manufacture of nitric acid, acrylic fibres and ammonium nitrate.

Extensive practical experience in such applications has confirmed the superiority of the alloy over standard steels, such as 304L and 310. Thanks to its tightly controlled chemical composition with consistent high chromium and extremely low impurity levels, it demonstrates considerably better performance in nitric acid services.

It is commonly used in tail gas preheaters. Tail gas preheaters operate in harsh conditions with hot and corrosive gases, which can quickly damage materials. When this gas enters the heater, the droplets condensate on the hot tube wall and start boiling. The temperature of the heating medium, usually hot process gas or steam, can be very high. In this type of condition, 304L tends to have a short service life. Tubes and tube sheets manufactured in Alleima 2RE10 are recommended for a long service life.

It is is used in cooler condensers because it has excellent corrosion resistance and can handle the challenging conditions. Cooler condensers often deal with wet, acidic and corrosive gases that can cause other materials to degrade. In cooler condensers, corrosion normally occurs at the inlet, where the first condensate is formed. If reboiling of the first condensate occurs, the corrosive conditions become severe. By upgrading to the alloy, the service life will be substantially longer than, for example, 304L. It can be reliable choice for cooler condensers, as it reduces maintenance needs and improves overall performance.

Read the article online at: https://www.worldfertilizer.com/product-news/25022025/alleima-is-expanding-short-lead-time-availability-for-its-nitric-acid-alloy-in-the-us/