Grade E550 Heavy Steel Plate by TMCP for Offshore Energy Exploration

Wei Hua Sun; Zhi Chao Bi

doi:10.4028/www.scientific.net/AMR.936.1146

Paper Titles

The Effects of Hydrogen on Properties of Surface Films Formed on Iron in Sulfate Solutions
p.1120

Corrosion Inhibition of Gemini Surfactant for Copper in 3.5% NaCl
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A Study of the Corrosion Resistance of M50NiL Bearing Steel by Ion Implantation
p.1132

Microstructure Evolution Characterization of Multi-Pass Hot Rolling Simulation of Nb-Ti Microalloyed Steel
p.1141

Grade E550 Heavy Steel Plate by TMCP for Offshore Energy Exploration
p.1146

Preparation of Crystalline Hematite from Bauxite
p.1153

The Effect of Heat Treatment of Gray and Nodular Cast Iron with Ferrite Matrix on Mechanical Properties and Corrosion Rate Compared with Medium Carbon Steel
p.1158

Microstructure and Tensile Behavior of Ti-Rich Ti-Ni-Cu Melt-Spun Ribbon
p.1163

The Oxide Defect of C70250 Alloy
p.1168

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 936Grade E550 Heavy Steel Plate by TMCP for Offshore...

Grade E550 Heavy Steel Plate by TMCP for Offshore Energy Exploration

Abstract:

This paper introduces the study and production on steel plate of Grade E550 in60mm thick by Thermo-mechanical processing (TMCP) and tempering for offshoreinfrastructure purpose. The steel plate obtained high strength and goodtoughness in both the base materials and the weld joints. Microstructure and precipitation characteristicswere examined in the plate is comprised of bainite with a small amount ofpre-eutectoid ferrite. Parallel arranged lath bainite characterizes thebainitic structure with high density of dislocations and precipitates. Carbides M_xC_y averaging 200nm indimension and MC type Carbonitrides in several nano to a dozen nano carbidesdistribute in the bainite ferrite and the bainte lath interfaces. Compatiblemechanical properties were achieved at welded joint. Microstructures were analysed in the welding heataffected zone (HAZ).

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Periodical:

Advanced Materials Research (Volume 936)

Pages:

1146-1152

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.936.1146

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Online since:

June 2014

Authors:

Wei Hua Sun*, Zhi Chao Bi

Keywords:

CTOD, High Strength Steel (HSS), Offshore Infrastructure, Steel Plate, Tempering, TMCP, Welding

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