Argon-oxygen decarburization

AOD [Argon oxygen decarburization] A steelmaking process in which a mixture of oxygen and argon is injected into molten iron to reduce the carbon content. Developed by the Union Carbide Corporation in the mid 1970s. By 1989, 90 percent of the stainless steel made in the United States was made with this process. 

C-276 Argon-oxygen decarburization was used in development of the alloy,... 

Standards of Performance for Steel Plants Electric Arc Furnaces and Argon-Oxygen Decarburization Vessels Constructed After August 17, 1983 Standards of Performance for Kraft Pulp Mills Standards of Performance for Glass Manufacturing Plants Standards of Performance for Grain Elevators Standards of Performance for Surface Coating of Metal Furniture (Reserved)... 

Steel Plants Electric Arc Furnaces and Argon-Oxygen Decarburization Vessels Constructed after August 7,1983 Kraft Pulp Mills Glass Manufacturing Plants Grain Elevators... 

Since ferritic stainless steels contain more carbon than other classes, they are relatively harder to weld and shape than other varieties, which have historically limited their applications. However, since the 1960s, processes such as argon oxygen decarburization have resulted in steels with less carbon, allowing for smaller concentrations of chromium to be used. As a result, the price for ferritic stainless steel has dramatically dropped, and a number of applications now employ these materials - more than 2/3 of which include automotive exhaust systems. 

By argon-oxygen decarburization (ADD) the carbon content of commercial heats of 304L can now be reduced consistently to 0.01 %. AOD and vacuum induction melting are used to produce the new high-purity Fe-Cr-Mo ferritic stainless steels in Table 2. 

Great quantities of argon are used in the production of stainless steels with the AOD (argon-oxygen-decarburization) process, treated in Chapter 8 Iron. 

AOD argon-oxygen decarburization CCT critical crevice temperature... 

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