The Paton Welding Journal, 2011, №02



2011 №02 (08)

2011 №02 (10)

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The Paton Welding Journal, 2011, #2, 43-47 pages  

CAPABILITIES OF APPLICATION OF HIGH-STRENGTH LOW-ALLOY PIPE STEELS FOR MANUFACTURE OF HIGH-PRESSURE VESSELS

V.M. KULIK, M.M. SAVITSKY, V.P. ELAGIN and E.L. DEMCHENKO

E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
 
 
Abstract
Technical capabilities and rationality of manufacturing mobile combined high pressure vessels of small specific weight are considered. Low-alloy low-carbon steels of higher and high strength and large diameter pipes can be used for shell billets. Butt joints acceptable in terms of properties and cyclic fatigue life are produced by multilayer submerged-arc welding, and they can be improved by arc treatment with a partial melting. Welded case is subjected to annealing without performing high-temperature strengthening and is reinforced along the cylindrical part by a composite material of a high specific strength.
 
 
Keywords: submerged-arc welding, high-strength low-alloy steels, high-pressure vessels, welded joints, argon arc treatment, thermal cycle, structure, mechanical properties, cyclic life, specific weight
 
 
Received:                ??.??.??
Published:               28.02.11
 
 
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