The Rose Corporation AOD Vessel Repair Project

Posted by Bob Skorupsky on Jul 5, 2017 1:03:35 PM

A local specialty steel mill that makes stainless steel contracted with The Rose Corporation to repair an AOD vessel. We originally manufactured this 50,000-lb. vessel in 1998, along with two other identical vessels. After years of using the AOD Vessel under extreme heat conditions, the center of the main body bulged out of round by as much as 3-inches, making it impossible to fit into the trunnion ring that supports it.

AOD (Argon oxygen decarburization) is a process primarily used in stainless steel making and other high grade alloys with oxidizable elements such as chromium and aluminum. After initial melting the metal is then transferred to an AOD vessel where it will be subjected to three steps of refining; decarburization, reduction, and desulphurization.

The Rose Corporation was contracted to replace the center cylinder section, which is made of 1-1/2” thick steel.  The project was extremely time sensitive — the AOD vessel had to be repaired, stress-relieved, tested and delivered in five weeks. After the success of the repair project, The Rose Corporation has been contracted to build a new AOD vessel identical to the one that we repaired.

The Photos below show the vessel as it was received, while in our facility under repair and then loaded back on the trailer for shipping back to the customer.


Above: The damaged AOD vessel being delivered to The Rose Corporation for repair.




Above: The AOD vessel under repair at The Rose Corporation in Reading, PA.


Above: The AOD vessel repaired and ready to be returned to the customer.

The Rose Corporation, based in Reading, Pennsylvania specializes in the manufacture of custom industrial fabrication, large-scale precision weldments, power generation equipment (including repairs), and more. The Rose Corporation’s most unique strength is our experience with delivery of specialized design expertise, along with an ability to help customers optimize manufacturability, reduce costs, and improve overall product quality.

Click here to learn more about our  industrial fabrication capabilities 


Topics: AOD vessels, custom industrial fabrication, contract industrial fabrication