**Exhibit 24.1****POWER OF ATTORNEY**     WHEREAS, HYDRIL COMPANY, a Delaware corporation (the“Company”), intends to file with the Securities andExchange Commission (the “Commission”) under theSecurities Exchange Act of 1934, as amended (the“Act”), an Annual Report onForm 10-K for thefiscal year ended December 31, 2005, as prescribed by theCommission pursuant to the Act and the rules and regulations ofthe Commission promulgated thereunder, with such amendments,supplements or appendices thereto as may be necessary orappropriate, together with any and all exhibits and otherdocuments having relation to said Annual Report;     NOW, THEREFORE, the undersigned in his capacity as a director orofficer, or both, as the case may be, of the Company, doeshereby appoint CHRISTOPHER T. SEAVER and CHRIS D. NORTH, andeach of them severally, as his true and lawful attorney orattorneys with power to act with or without the other, and withfull power of substitution and resubstitution, to execute in hisname, place and stead, in his capacity as a director or officer,or both, as the case may be, of the Company, said Annual Reportand any and all amendments, supplements or appendices theretoand all instruments necessary or incidental in connectiontherewith as said attorneys or either of them shall deemnecessary or incidental in connection therewith and to file thesame or cause the same to be filed with the Commission. Each ofsaid attorneys shall have full power and authority to do andperform in the name and on behalf of the undersigned in any andall capacities, every act whatsoever necessary or desirable tobe done to the premises, as fully and to all intents andpurposes as the undersigned might or could do in person, theundersigned hereby ratifying and approving the acts of saidattorneys and each of them.     IN WITNESS WHEREOF, the undersigned has executed this instrumenton this 7th day of March, 2006.     /s/ Kenneth S. McCormick       Kenneth S. McCormick

 
**POWER OF ATTORNEY**     WHEREAS, HYDRIL COMPANY, a Delaware corporation (the“Company”), intends to file with the Securities andExchange Commission (the “Commission”) under theSecurities Exchange Act of 1934, as amended (the“Act”), an Annual Report onForm 10-K for thefiscal year ended December 31, 2005, as prescribed by theCommission pursuant to the Act and the rules and regulations ofthe Commission promulgated thereunder, with such amendments,supplements or appendices thereto as may be necessary orappropriate, together with any and all exhibits and otherdocuments having relation to said Annual Report;     NOW, THEREFORE, the undersigned in his capacity as a director orofficer, or both, as the case may be, of the Company, doeshereby appoint CHRISTOPHER T. SEAVER and CHRIS D. NORTH, andeach of them severally, as his true and lawful attorney orattorneys with power to act with or without the other, and withfull power of substitution and resubstitution, to execute in hisname, place and stead, in his capacity as a director or officer,or both, as the case may be, of the Company, said Annual Reportand any and all amendments, supplements or appendices theretoand all instruments necessary or incidental in connectiontherewith as said attorneys or either of them shall deemnecessary or incidental in connection therewith and to file thesame or cause the same to be filed with the Commission. Each ofsaid attorneys shall have full power and authority to do andperform in the name and on behalf of the undersigned in any andall capacities, every act whatsoever necessary or desirable tobe done to the premises, as fully and to all intents andpurposes as the undersigned might or could do in person, theundersigned hereby ratifying and approving the acts of saidattorneys and each of them.     IN WITNESS WHEREOF, the undersigned has executed this instrumenton this 7th day of March, 2006.     /s/ Richard C. Seaver       Richard C. Seaver

 
**POWER OF ATTORNEY**     WHEREAS, HYDRIL COMPANY, a Delaware corporation (the“Company”), intends to file with the Securities andExchange Commission (the “Commission”) under theSecurities Exchange Act of 1934, as amended (the“Act”), an Annual Report onForm 10-K for thefiscal year ended December 31, 2005, as prescribed by theCommission pursuant to the Act and the rules and regulations ofthe Commission promulgated thereunder, with such amendments,supplements or appendices thereto as may be necessary orappropriate, together with any and all exhibits and otherdocuments having relation to said Annual Report;     NOW, THEREFORE, the undersigned in his capacity as a director orofficer, or both, as the case may be, of the Company, doeshereby appoint CHRISTOPHER T. SEAVER and CHRIS D. NORTH, andeach of them severally, as his true and lawful attorney orattorneys with power to act with or without the other, and withfull power of substitution and resubstitution, to execute in hisname, place and stead, in his capacity as a director or officer,or both, as the case may be, of the Company, said Annual Reportand any and all amendments, supplements or appendices theretoand all instruments necessary or incidental in connectiontherewith as said attorneys or either of them shall deemnecessary or incidental in connection therewith and to file thesame or cause the same to be filed with the Commission. Each ofsaid attorneys shall have full power and authority to do andperform in the name and on behalf of the undersigned in any andall capacities, every act whatsoever necessary or desirable tobe done to the premises, as fully and to all intents andpurposes as the undersigned might or could do in person, theundersigned hereby ratifying and approving the acts of saidattorneys and each of them.     IN WITNESS WHEREOF, the undersigned has executed this instrumenton this 7th day of March, 2006.     /s/ Jerry S. Cox       Jerry S. Cox

 
**POWER OF ATTORNEY**     WHEREAS, HYDRIL COMPANY, a Delaware corporation (the“Company”), intends to file with the Securities andExchange Commission (the “Commission”) under theSecurities Exchange Act of 1934, as amended (the“Act”), an Annual Report onForm 10-K for thefiscal year ended December 31, 2005, as prescribed by theCommission pursuant to the Act and the rules and regulations ofthe Commission promulgated thereunder, with such amendments,supplements or appendices thereto as may be necessary orappropriate, together with any and all exhibits and otherdocuments having relation to said Annual Report;     NOW, THEREFORE, the undersigned in his capacity as a director orofficer, or both, as the case may be, of the Company, doeshereby appoint CHRISTOPHER T. SEAVER and CHRIS D. NORTH, andeach of them severally, as his true and lawful attorney orattorneys with power to act with or without the other, and withfull power of substitution and resubstitution, to execute in hisname, place and stead, in his capacity as a director or officer,or both, as the case may be, of the Company, said Annual Reportand any and all amendments, supplements or appendices theretoand all instruments necessary or incidental in connectiontherewith as said attorneys or either of them shall deemnecessary or incidental in connection therewith and to file thesame or cause the same to be filed with the Commission. Each ofsaid attorneys shall have full power and authority to do andperform in the name and on behalf of the undersigned in any andall capacities, every act whatsoever necessary or desirable tobe done to the premises, as fully and to all intents andpurposes as the undersigned might or could do in person, theundersigned hereby ratifying and approving the acts of saidattorneys and each of them.     IN WITNESS WHEREOF, the undersigned has executed this instrumenton this 7th day of March, 2006.     /s/ Patrick T. Seaver       Patrick T. Seaver

 
**POWER OF ATTORNEY**     WHEREAS, HYDRIL COMPANY, a Delaware corporation (the“Company”), intends to file with the Securities andExchange Commission (the “Commission”) under theSecurities Exchange Act of 1934, as amended (the“Act”), an Annual Report onForm 10-K for thefiscal year ended December 31, 2005, as prescribed by theCommission pursuant to the Act and the rules and regulations ofthe Commission promulgated thereunder, with such amendments,supplements or appendices thereto as may be necessary orappropriate, together with any and all exhibits and otherdocuments having relation to said Annual Report;     NOW, THEREFORE, the undersigned in his capacity as a director orofficer, or both, as the case may be, of the Company, doeshereby appoint CHRISTOPHER T. SEAVER and CHRIS D. NORTH, andeach of them severally, as his true and lawful attorney orattorneys with power to act with or without the other, and withfull power of substitution and resubstitution, to execute in hisname, place and stead, in his capacity as a director or officer,or both, as the case may be, of the Company, said Annual Reportand any and all amendments, supplements or appendices theretoand all instruments necessary or incidental in connectiontherewith as said attorneys or either of them shall deemnecessary or incidental in connection therewith and to file thesame or cause the same to be filed with the Commission. Each ofsaid attorneys shall have full power and authority to do andperform in the name and on behalf of the undersigned in any andall capacities, every act whatsoever necessary or desirable tobe done to the premises, as fully and to all intents andpurposes as the undersigned might or could do in person, theundersigned hereby ratifying and approving the acts of saidattorneys and each of them.     IN WITNESS WHEREOF, the undersigned has executed this instrumenton this 7th day of March, 2006.     /s/ T. Don Stacy       T. Don Stacy

 
**POWER OF ATTORNEY**     WHEREAS, HYDRIL COMPANY, a Delaware corporation (the“Company”), intends to file with the Securities andExchange Commission (the “Commission”) under theSecurities Exchange Act of 1934, as amended (the“Act”), an Annual Report onForm 10-K for thefiscal year ended December 31, 2005, as prescribed by theCommission pursuant to the Act and the rules and regulations ofthe Commission promulgated thereunder, with such amendments,supplements or appendices thereto as may be necessary orappropriate, together with any and all exhibits and otherdocuments having relation to said Annual Report;     NOW, THEREFORE, the undersigned in his capacity as a director orofficer, or both, as the case may be, of the Company, doeshereby appoint CHRISTOPHER T. SEAVER and CHRIS D. NORTH, andeach of them severally, as his true and lawful attorney orattorneys with power to act with or without the other, and withfull power of substitution and resubstitution, to execute in hisname, place and stead, in his capacity as a director or officer,or both, as the case may be, of the Company, said Annual Reportand any and all amendments, supplements or appendices theretoand all instruments necessary or incidental in connectiontherewith as said attorneys or either of them shall deemnecessary or incidental in connection therewith and to file thesame or cause the same to be filed with the Commission. Each ofsaid attorneys shall have full power and authority to do andperform in the name and on behalf of the undersigned in any andall capacities, every act whatsoever necessary or desirable tobe done to the premises, as fully and to all intents andpurposes as the undersigned might or could do in person, theundersigned hereby ratifying and approving the acts of saidattorneys and each of them.     IN WITNESS WHEREOF, the undersigned has executed this instrumenton this 7th day of March, 2006.     /s/ Lew O. Ward       Lew O. Ward

 
**POWER OF ATTORNEY**     WHEREAS, HYDRIL COMPANY, a Delaware corporation (the“Company”), intends to file with the Securities andExchange Commission (the “Commission”) under theSecurities Exchange Act of 1934, as amended (the“Act”), an Annual Report onForm 10-K for thefiscal year ended December 31, 2005, as prescribed by theCommission pursuant to the Act and the rules and regulations ofthe Commission promulgated thereunder, with such amendments,supplements or appendices thereto as may be necessary orappropriate, together with any and all exhibits and otherdocuments having relation to said Annual Report;     NOW, THEREFORE, the undersigned, in his capacity as an officerof the Company, does hereby appoint CHRISTOPHER T. SEAVER as histrue and lawful attorney, with full power of substitution andresubstitution, to execute in his name, place and stead, in hiscapacity as an officer of the Company, said Annual Report andany and all amendments, supplements or appendices thereto andall instruments necessary or incidental in connection therewithas said attorney shall deem necessary or incidental inconnection therewith and to file the same or cause the same tobe filed with the Commission. Said attorney shall have fullpower and authority to do and perform in the name and on behalfof the undersigned in any and all capacities, every actwhatsoever necessary or desirable to be done to the premises, asfully and to all intents and purposes as the undersigned mightor could do in person, the undersigned hereby ratifying andapproving the acts of said attorney.     IN WITNESS WHEREOF, the undersigned has executed this instrumenton this 7th day of March, 2006.     /s/ Chris D. North       Chris D. North

 
**POWER OF ATTORNEY**     WHEREAS, HYDRIL COMPANY, a Delaware corporation (the“Company”), intends to file with the Securities andExchange Commission (the “Commission”) under theSecurities Exchange Act of 1934, as amended (the“Act”), an Annual Report onForm 10-K for thefiscal year ended December 31, 2005, as prescribed by theCommission pursuant to the Act and the rules and regulations ofthe Commission promulgated thereunder, with such amendments,supplements or appendices thereto as may be necessary orappropriate, together with any and all exhibits and otherdocuments having relation to said Annual Report;     NOW, THEREFORE, the undersigned in his capacity as a directorand officer of the Company, does hereby appoint CHRIS D. NORTHas his true and lawful attorney, with full power of substitutionand resubstitution, to execute in his name, place and stead, inhis capacity as a director and officer of the Company, saidAnnual Report and any and all amendments, supplements orappendices thereto and all instruments necessary or incidentalin connection therewith as said attorney shall deem necessary orincidental in connection therewith and to file the same or causethe same to be filed with the Commission. Said attorney shallhave full power and authority to do and perform in the name andon behalf of the undersigned in any and all capacities, everyact whatsoever necessary or desirable to be done to thepremises, as fully and to all intents and purposes as theundersigned might or could do in person, the undersigned herebyratifying and approving the acts of said attorney.     IN WITNESS WHEREOF, the undersigned has executed this instrumenton this 7th day of March, 2006.     /s/ Christopher T. Seaver       Christopher T. Seaver

 
**POWER OF ATTORNEY**     WHEREAS, HYDRIL COMPANY, a Delaware corporation (the“Company”), intends to file with the Securities andExchange Commission (the “Commission”) under theSecurities Exchange Act of 1934, as amended (the“Act”), an Annual Report onForm 10-K for thefiscal year ended December 31, 2005, as prescribed by theCommission pursuant to the Act and the rules and regulations ofthe Commission promulgated thereunder, with such amendments,supplements or appendices thereto as may be necessary orappropriate, together with any and all exhibits and otherdocuments having relation to said Annual Report;     NOW, THEREFORE, the undersigned in his capacity as a director orofficer, or both, as the case may be, of the Company, doeshereby appoint CHRISTOPHER T. SEAVER and CHRIS D. NORTH, andeach of them severally, as his true and lawful attorney orattorneys with power to act with or without the other, and withfull power of substitution and resubstitution, to execute in hisname, place and stead, in his capacity as a director or officer,or both, as the case may be, of the Company, said Annual Reportand any and all amendments, supplements or appendices theretoand all instruments necessary or incidental in connectiontherewith as said attorneys or either of them shall deemnecessary or incidental in connection therewith and to file thesame or cause the same to be filed with the Commission. Each ofsaid attorneys shall have full power and authority to do andperform in the name and on behalf of the undersigned in any andall capacities, every act whatsoever necessary or desirable tobe done to the premises, as fully and to all intents andpurposes as the undersigned might or could do in person, theundersigned hereby ratifying and approving the acts of saidattorneys and each of them.     IN WITNESS WHEREOF, the undersigned has executed this instrumenton this 7th day of March, 2006.     /s/ Roger Goodan       Roger Goodan

 
**POWER OF ATTORNEY**     WHEREAS, HYDRIL COMPANY, a Delaware corporation (the“Company”), intends to file with the Securities andExchange Commission (the “Commission”) under theSecurities Exchange Act of 1934, as amended (the“Act”), an Annual Report onForm 10-K for thefiscal year ended December 31, 2005, as prescribed by theCommission pursuant to the Act and the rules and regulations ofthe Commission promulgated thereunder, with such amendments,supplements or appendices thereto as may be necessary orappropriate, together with any and all exhibits and otherdocuments having relation to said Annual Report;     NOW, THEREFORE, the undersigned in his capacity as a director orofficer, or both, as the case may be, of the Company, doeshereby appoint CHRISTOPHER T. SEAVER and CHRIS D. NORTH, andeach of them severally, as his true and lawful attorney orattorneys with power to act with or without the other, and withfull power of substitution and resubstitution, to execute in hisname, place and stead, in his capacity as a director or officer,or both, as the case may be, of the Company, said Annual Reportand any and all amendments, supplements or appendices theretoand all instruments necessary or incidental in connectiontherewith as said attorneys or either of them shall deemnecessary or incidental in connection therewith and to file thesame or cause the same to be filed with the Commission. Each ofsaid attorneys shall have full power and authority to do andperform in the name and on behalf of the undersigned in any andall capacities, every act whatsoever necessary or desirable tobe done to the premises, as fully and to all intents andpurposes as the undersigned might or could do in person, theundersigned hereby ratifying and approving the acts of saidattorneys and each of them.     IN WITNESS WHEREOF, the undersigned has executed this instrumenton this 7th day of March, 2006.     /s/ Gordon T. Hall       Gordon T. Hall