FORGED PRODUCT OF NON-MAGNETIC STAINLESS STEEL, DRILL COLLAR USING THE FORGED PRODUCT, AND METHOD FOR MANUFACTURING THE FORGED PRODUCT

摘要

PROBLEM TO BE SOLVED: To provide a forged product of a non-magnetic stainless steel having adequate mechanical properties and corrosion resistance; a drill collar using the forged product of the non-magnetic stainless steel; and a method for manufacturing the forged product of the non-magnetic stainless steel.;SOLUTION: The forged product of the non-magnetic stainless steel is manufactured by forging the non-magnetic stainless steel having a predetermined composition at a forging temperature of 650°C or lower.;COPYRIGHT: (C)2009,JPO&INPIT