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                                                                      EXHIBIT 21
                         SUBSIDIARIES OF THE REGISTRANT
                            CHAPARRAL STEEL COMPANY






                                                                Jurisdiction
                       Subsidiary                             of Incorporation
                       ----------                             ----------------
                                                               
Wholly-Owned:                                              
                                                           
Ferrco Dallas, Inc. ..........................                     Texas
                                                           
TA Joist, Inc. ...............................                    Delaware
                                                           
                                                           
80% Owned:                                                 
                                                           
America Steel Transport, Inc. ................                     Texas