Improvement of charpy toughness of weld metal in circumferential SMAW of pipe

Conference · Sat Dec 31 00:00:00 EST 1994

OSTI ID:398022

Abe, T; Hara, N; Sugino, T; Naruse, S; Kasai, N ^[1]

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1. Kobel Steel, Ltd., Fujisawa (Japan)

Charpy toughness of weld metal made by low hydrogen and high cellulose electrodes for circumferential welding of API 5LX-60-X-70 grade of pipe is investigated. Improvements of charpy toughness was achieved by obtaining a fine microstructure through the adjustment of the quantity of alloying elements such as Mn and Ni and/or by the addition of an optimum range of micro-alloying elements like Ti and B for low hydrogen electrodes. It is reported that for high cellulose electrodes reducing the oxygen content in weld metal is also effective.

• OSTI ID: 398022
• Report Number(s): CONF-940409-; ISBN 1-880653-10-9; TRN: IM9649%%230
• Resource Relation: Conference: 4. international conference on offshore and polar engineering, Osaka (Japan), 10-15 Apr 1994; Other Information: PBD: 1994; Related Information: Is Part Of The proceedings of the fourth (1994) international offshore and polar engineering conference. Volume 2; Chung, J.S. [ed.] [Colorado School of Mines, Golden, CO (United States)]; Karal, K. [ed.] [Norwegian Contractors, Stabekk (Norway)]; Koteryama, Wataru [ed.] [Kyushu Univ., Kasuga (Japan)]; PB: 640 p.
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
36 MATERIALS SCIENCE
PIPELINES
WELDED JOINTS
CHARPY TEST
MICROSTRUCTURE
MATERIALS TESTING