C - Chemistry – Metallurgy – 21 – D
Patent
C - Chemistry, Metallurgy
21
D
148/31
C21D 9/08 (2006.01) C21D 8/10 (2006.01)
Patent
CA 1041883
S P E C I F I C A T I O N Title of Invention: A METHOD FOR PRODUCING A HIGH TENSILE STRENGTH AND HIGH TOUGHNESS BEND PIPE Abstract of the Disclosure: A method for producing a high tensile strength and toughness bend pipe in which a heat treatment is done as a pretreatment prior to bending, and a tempering treatment is done, if necessary, after the bending, and the bend pipe produced by the present invention is useful for pipe line construction and shows excellent properties at low temperatures.
230974
Kimura Turugi
Nakasugi Hajime
Nakayama Masatoki
Tamehiro Hiroshi
Yamaguti Masanobu
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