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Metals 2017, 7(4), 150; doi:10.3390/met7040150

Microstructure and Mechanical Properties of J55ERW Steel Pipe Processed by On-Line Spray Water Cooling

1
State Key Laboratory of Mechanical Transmission, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
2
College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
*
Author to whom correspondence should be addressed.
Academic Editor: Soran Birosca
Received: 17 August 2016 / Revised: 19 March 2017 / Accepted: 4 April 2017 / Published: 23 April 2017
(This article belongs to the Special Issue Process-Structure-Property Relationships in Metals)
View Full-Text   |   Download PDF [5019 KB, uploaded 23 April 2017]   |  

Abstract

An on-line spray water cooling (OSWC) process for manufacturing electric resistance welded (ERW) steel pipes is presented to enhance their mechanical properties and performances. This technique reduces the processing needed for the ERW pipe and overcomes the weakness of the conventional manufacturing technique. Industrial tests for J55 ERW steel pipe were carried out to validate the effectiveness of the OSWC process. The microstructure and mechanical properties of the J55 ERW steel pipe processed by the OSWC technology were investigated. The optimized OSWC technical parameters are presented based on the mechanical properties and impact the performance of steel pipes. The industrial tests show that the OSWC process can be used to efficiently control the microstructure, enhance mechanical properties, and improve production flexibility of steel pipes. The comprehensive mechanical properties of steel pipes processed by the OSWC are superior to those of other published J55 grade steels. View Full-Text
Keywords: electric resistance welding (ERW); steel pipe; on-line spray water cooling (OSWC); microstructure; mechanical properties electric resistance welding (ERW); steel pipe; on-line spray water cooling (OSWC); microstructure; mechanical properties
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Chen, Z.; Chen, X.; Zhou, T. Microstructure and Mechanical Properties of J55ERW Steel Pipe Processed by On-Line Spray Water Cooling. Metals 2017, 7, 150.

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