Strengthening Low Carbon Steels for Oil and Gas Spiral Welded Pipes

2006 ◽  
Author(s):  
I. Yu. Pyshmintsev ◽  
D. A. Pumpyanskyi ◽  
Yu. O. Kamenskih ◽  
I. N. Poznyakovsky ◽  
I. L. Permyakov
Keyword(s):  
Oil And Gas ◽  
Controlled Rolling ◽  
Carbon Steels ◽  
Low Carbon ◽  
Line Pipe ◽  
Low Carbon Steels ◽  
Factors Affecting ◽  
Steel Processing ◽  
Line Pipe Steel ◽  
Strain Hardening Behavior

Strengthening mechanisms applied for modern line pipe steel design were studied. Low carbon steels alloyed with Mn, Mo, V, Nb processed by the way of controlled rolling were developed for spiral welded X65-X80 line pipes up to 1420 mm diameter. Formation of the microstructure during steel processing was studied. The effects of typical microstructure for the steels on mechanical properties, strain hardening behavior and Bauschinger effect were studied. Main metallurgical factors affecting on strength measured in plates and pipes were revealed using physical and computer simulations.

Austenite Recrystallization and Controlled Rolling of Low Carbon Steels

2006 ◽  
Vol 13 (3) ◽  
pp. 31-35 ◽  
Author(s):  
Lin-xiu Du ◽  
Zhong-ping Zhang ◽  
Guang-fu She ◽  
Xiang-hua Liu ◽  
Guo-dong Wang
Keyword(s):  
Controlled Rolling ◽  
Carbon Steels ◽  
Low Carbon ◽  
Low Carbon Steels ◽  
Austenite Recrystallization
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