Application of High Tensile (E-550 Grade) Structural Plates for Built-up Columns and Beams in Boiler Structure

Brajesh Kumar Chaurasia; Ajay Sharma; Aditya Singh

doi:doi:10.11648/j.ie.20210502.13

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Application of High Tensile (E-550 Grade) Structural Plates for Built-up Columns and Beams in Boiler Structure

Brajesh Kumar Chaurasia, Ajay Sharma, Aditya Singh

Published in Industrial Engineering (Volume 5, Issue 2)

Received: 23 August 2021 Accepted: 22 September 2021 Published: 12 October 2021

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Abstract

In the past Boiler Structure has been designed using mainly carbon steel plates of Grade E250 or E350. This paper presents and analyses the application of High Tensile steel (E550 Grade as per IS: 2062) in Heavy structure like Boiler Supporting Steel Structure. Boiler supporting Structure consists of major weight contribution in Columns and Beams which are stress governed, the objective is to optimize the structural quantity through application of High Tensile Steel with higher yield stress. This paper describes the complete analytical approach adopted in analysis & design, conclusion and recommendation. Latest structural plate rolling technology provides excellent combination of high strength, Toughness and weldability for High Tensile Steel, these properties of steel plate are most critical mechanical properties for steel structure design. The key microstructural control is obtained in the plate rolling mills through on-line heat treatment immediately after accelerated cooling during Thermo-Mechanical Controlled Processing (TMCP). Thermo-Mechanical Controlled Processing technology is recent development applied in latest steel structural plate rolling mills for rolling with thickness up to 120mm. Niobium (Nb) as a micro alloy in the steel enables to achieve a substantial grain refinement, very fine-grained microstructure improves toughness and increases the yield strength. The TMCP process enables the required tensile properties in structural plates with leaner chemical composition. Leaner chemical composition, especially lower carbon content and lower carbon equivalents improves weldability. Improved weldability benefits the fabricator for fabrication of plate fabricated built-up profiles which is the main requirement in Heavy Structure like Boiler Supporting Steel Structure. Detailed analysis and design of typical 660 MW coal fired Boiler structure has resulted in 25% structural weight saving in case of High Tensile steel application (E550 Grade) as compared with commonly used carbon steel (E250/E350 Grade). Also, this analysis concludes that use of high tensile steel should be limited to Columns and Beams only which are stress governed and where yield strength is the main design criteria.

Published in	Industrial Engineering (Volume 5, Issue 2)
DOI	10.11648/j.ie.20210502.13
Page(s)	46-51
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

E-550 Grade Steel, Boiler Supporting Structure, Thermo-Mechanical Controlled Processing (TMCP), Martensite-Austenite (M-A)

References

[1]	Design manual for Boiler Steel Structure Design of L&T-MHI Power Boilers Pvt. Ltd.
[2]	IS: 800- Code of Practice for General Construction Steel.
[3]	IS: 875 (Part-1)- Dead Loads – Unit weights of Building material and stored materials.
[4]	IS: 875 (Part-2) – Imposed Loads.
[5]	IS: 875 (Part-3)- Code of Practice for Design loads (other than Earthquake) for Buildings and Structures, Part-3 Wind Loads.
[6]	IS: 1893 (Part-1) – Criteria for Earthquake Resistant Design of Structures, Part1: General Provisions and Buildings.
[7]	IS: 2062-Hot Rolled Low, Medium and High Tensile Structural Steel.
[8]	G. Jansto and Jitendra Patel; Niobium -Bearing Structural steel for 21st century, Steven G., TMS (The Mineral, Metals & Material Society) – 2010.
[9]	Steven G. Jansto and Jitendra Patel; Application of Nb in TMCP Structural Steel plates with thickness up to 120mm, TMS (The Mineral, Metals & Material Society) – 2010, CBMM- Reference Metals Company, 1000 Old Pond Road.
[10]	R. Regier J. Speer, S. Jansto, A. Baily and D. Matlok, “Thermomechanical Processing Effects on the Elevated Behaviour of Niobium Bearing Fire-Resistant Steel,” Material Science and Technology Conference, Detroit, Michigan, Sept 16-20, 2007{AIST 2008 Hunt-Kelly Award Paper].
[11]	J. G. Speer, R. W. Regier, D. K. Matlock, and S. G. Jansto, “Elevated Temperature Properties of Nb-Microalloyed Fire Resistant Construction Steels,”International Symposium on New Developmens: Metallurgy & Applications of High Strength Steels, May 26-28, 2008, Buenous Aires Hotel, Argentina.
[12]	D. Misra, S. Shanmugam, T Mannering, D. Panda and S Jansto,” Some Process and Physical Metallurgy Aspects of Niobium Microalloyed Steels for Heavy Structural Beams” International Conference on New Developments in Long Products, 2006, pp. 179-187.
[13]	Shinji Mitao, Nobuo Shikanai; Development of Nb Bearing High Strength Steel for Buildings Microstructural control through the On-Line Heating Process, Shinichi Suzuki and Keiji Ueda of JFE Steel Corporation; Steel Research Lab, Kawasaki Japan, of JFE Steel Corporation, Steel Research Lab., Kurashiki – Japan and Takayuki Ito JFE Steel Corporation, West Japan Works, Fukuyama- Japan.
[14]	P. Fluess, R. Valentin V. Schwinn; Application of NB in TMCP Structural Steel Plates with Thickness up to 120 mm, Hanus, Aktiengesellschaft der Dillinger Huttenwerke, Dillingen, Germany.
[15]	Dr. Rainer Grill, Head of R & D, voestalpine Grobblech GmbH, Linz, Austria; Lean Alloy Design for High and Highest Strength Steels.
[16]	Shuchi Suzuki, Sumitomo Metal Industries, Ltd, Tokyo- Japan, Niobium in Structural Steels.
[17]	AA Shaik, B Bhattacharya, S Ghosh and A K Mukherjee, Jindal Steel and Power Ltd., Raigarh – India.
[18]	Chengjia Shang and Xinlai He, University of Science and Technology Beijing, China.

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APA Style

Brajesh Kumar Chaurasia, Ajay Sharma, Aditya Singh. (2021). Application of High Tensile (E-550 Grade) Structural Plates for Built-up Columns and Beams in Boiler Structure. Industrial Engineering, 5(2), 46-51. https://doi.org/10.11648/j.ie.20210502.13

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ACS Style

Brajesh Kumar Chaurasia; Ajay Sharma; Aditya Singh. Application of High Tensile (E-550 Grade) Structural Plates for Built-up Columns and Beams in Boiler Structure. Ind. Eng. 2021, 5(2), 46-51. doi: 10.11648/j.ie.20210502.13

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AMA Style

Brajesh Kumar Chaurasia, Ajay Sharma, Aditya Singh. Application of High Tensile (E-550 Grade) Structural Plates for Built-up Columns and Beams in Boiler Structure. Ind Eng. 2021;5(2):46-51. doi: 10.11648/j.ie.20210502.13

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@article{10.11648/j.ie.20210502.13,
  author = {Brajesh Kumar Chaurasia and Ajay Sharma and Aditya Singh},
  title = {Application of High Tensile (E-550 Grade) Structural Plates for Built-up Columns and Beams in Boiler Structure},
  journal = {Industrial Engineering},
  volume = {5},
  number = {2},
  pages = {46-51},
  doi = {10.11648/j.ie.20210502.13},
  url = {https://doi.org/10.11648/j.ie.20210502.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ie.20210502.13},
  abstract = {In the past Boiler Structure has been designed using mainly carbon steel plates of Grade E250 or E350. This paper presents and analyses the application of High Tensile steel (E550 Grade as per IS: 2062) in Heavy structure like Boiler Supporting Steel Structure. Boiler supporting Structure consists of major weight contribution in Columns and Beams which are stress governed, the objective is to optimize the structural quantity through application of High Tensile Steel with higher yield stress. This paper describes the complete analytical approach adopted in analysis & design, conclusion and recommendation. Latest structural plate rolling technology provides excellent combination of high strength, Toughness and weldability for High Tensile Steel, these properties of steel plate are most critical mechanical properties for steel structure design. The key microstructural control is obtained in the plate rolling mills through on-line heat treatment immediately after accelerated cooling during Thermo-Mechanical Controlled Processing (TMCP). Thermo-Mechanical Controlled Processing technology is recent development applied in latest steel structural plate rolling mills for rolling with thickness up to 120mm. Niobium (Nb) as a micro alloy in the steel enables to achieve a substantial grain refinement, very fine-grained microstructure improves toughness and increases the yield strength. The TMCP process enables the required tensile properties in structural plates with leaner chemical composition. Leaner chemical composition, especially lower carbon content and lower carbon equivalents improves weldability. Improved weldability benefits the fabricator for fabrication of plate fabricated built-up profiles which is the main requirement in Heavy Structure like Boiler Supporting Steel Structure. Detailed analysis and design of typical 660 MW coal fired Boiler structure has resulted in 25% structural weight saving in case of High Tensile steel application (E550 Grade) as compared with commonly used carbon steel (E250/E350 Grade). Also, this analysis concludes that use of high tensile steel should be limited to Columns and Beams only which are stress governed and where yield strength is the main design criteria.},
 year = {2021}
}

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TY  - JOUR
T1  - Application of High Tensile (E-550 Grade) Structural Plates for Built-up Columns and Beams in Boiler Structure
AU  - Brajesh Kumar Chaurasia
AU  - Ajay Sharma
AU  - Aditya Singh
Y1  - 2021/10/12
PY  - 2021
N1  - https://doi.org/10.11648/j.ie.20210502.13
DO  - 10.11648/j.ie.20210502.13
T2  - Industrial Engineering
JF  - Industrial Engineering
JO  - Industrial Engineering
SP  - 46
EP  - 51
PB  - Science Publishing Group
SN  - 2640-1118
UR  - https://doi.org/10.11648/j.ie.20210502.13
AB  - In the past Boiler Structure has been designed using mainly carbon steel plates of Grade E250 or E350. This paper presents and analyses the application of High Tensile steel (E550 Grade as per IS: 2062) in Heavy structure like Boiler Supporting Steel Structure. Boiler supporting Structure consists of major weight contribution in Columns and Beams which are stress governed, the objective is to optimize the structural quantity through application of High Tensile Steel with higher yield stress. This paper describes the complete analytical approach adopted in analysis & design, conclusion and recommendation. Latest structural plate rolling technology provides excellent combination of high strength, Toughness and weldability for High Tensile Steel, these properties of steel plate are most critical mechanical properties for steel structure design. The key microstructural control is obtained in the plate rolling mills through on-line heat treatment immediately after accelerated cooling during Thermo-Mechanical Controlled Processing (TMCP). Thermo-Mechanical Controlled Processing technology is recent development applied in latest steel structural plate rolling mills for rolling with thickness up to 120mm. Niobium (Nb) as a micro alloy in the steel enables to achieve a substantial grain refinement, very fine-grained microstructure improves toughness and increases the yield strength. The TMCP process enables the required tensile properties in structural plates with leaner chemical composition. Leaner chemical composition, especially lower carbon content and lower carbon equivalents improves weldability. Improved weldability benefits the fabricator for fabrication of plate fabricated built-up profiles which is the main requirement in Heavy Structure like Boiler Supporting Steel Structure. Detailed analysis and design of typical 660 MW coal fired Boiler structure has resulted in 25% structural weight saving in case of High Tensile steel application (E550 Grade) as compared with commonly used carbon steel (E250/E350 Grade). Also, this analysis concludes that use of high tensile steel should be limited to Columns and Beams only which are stress governed and where yield strength is the main design criteria.
VL  - 5
IS  - 2
ER  -

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Author Information

Brajesh Kumar Chaurasia

Steel Structure Department, L&T-MHI Power Boilers Private Limited, Faridabad, India
Ajay Sharma

Steel Structure Department, L&T-MHI Power Boilers Private Limited, Faridabad, India
Aditya Singh

Steel Structure Department, L&T-MHI Power Boilers Private Limited, Faridabad, India

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APA Style

Brajesh Kumar Chaurasia, Ajay Sharma, Aditya Singh. (2021). Application of High Tensile (E-550 Grade) Structural Plates for Built-up Columns and Beams in Boiler Structure. Industrial Engineering, 5(2), 46-51. https://doi.org/10.11648/j.ie.20210502.13

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ACS Style

Brajesh Kumar Chaurasia; Ajay Sharma; Aditya Singh. Application of High Tensile (E-550 Grade) Structural Plates for Built-up Columns and Beams in Boiler Structure. Ind. Eng. 2021, 5(2), 46-51. doi: 10.11648/j.ie.20210502.13

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AMA Style

Brajesh Kumar Chaurasia, Ajay Sharma, Aditya Singh. Application of High Tensile (E-550 Grade) Structural Plates for Built-up Columns and Beams in Boiler Structure. Ind Eng. 2021;5(2):46-51. doi: 10.11648/j.ie.20210502.13

Copy | Download

@article{10.11648/j.ie.20210502.13,
  author = {Brajesh Kumar Chaurasia and Ajay Sharma and Aditya Singh},
  title = {Application of High Tensile (E-550 Grade) Structural Plates for Built-up Columns and Beams in Boiler Structure},
  journal = {Industrial Engineering},
  volume = {5},
  number = {2},
  pages = {46-51},
  doi = {10.11648/j.ie.20210502.13},
  url = {https://doi.org/10.11648/j.ie.20210502.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ie.20210502.13},
  abstract = {In the past Boiler Structure has been designed using mainly carbon steel plates of Grade E250 or E350. This paper presents and analyses the application of High Tensile steel (E550 Grade as per IS: 2062) in Heavy structure like Boiler Supporting Steel Structure. Boiler supporting Structure consists of major weight contribution in Columns and Beams which are stress governed, the objective is to optimize the structural quantity through application of High Tensile Steel with higher yield stress. This paper describes the complete analytical approach adopted in analysis & design, conclusion and recommendation. Latest structural plate rolling technology provides excellent combination of high strength, Toughness and weldability for High Tensile Steel, these properties of steel plate are most critical mechanical properties for steel structure design. The key microstructural control is obtained in the plate rolling mills through on-line heat treatment immediately after accelerated cooling during Thermo-Mechanical Controlled Processing (TMCP). Thermo-Mechanical Controlled Processing technology is recent development applied in latest steel structural plate rolling mills for rolling with thickness up to 120mm. Niobium (Nb) as a micro alloy in the steel enables to achieve a substantial grain refinement, very fine-grained microstructure improves toughness and increases the yield strength. The TMCP process enables the required tensile properties in structural plates with leaner chemical composition. Leaner chemical composition, especially lower carbon content and lower carbon equivalents improves weldability. Improved weldability benefits the fabricator for fabrication of plate fabricated built-up profiles which is the main requirement in Heavy Structure like Boiler Supporting Steel Structure. Detailed analysis and design of typical 660 MW coal fired Boiler structure has resulted in 25% structural weight saving in case of High Tensile steel application (E550 Grade) as compared with commonly used carbon steel (E250/E350 Grade). Also, this analysis concludes that use of high tensile steel should be limited to Columns and Beams only which are stress governed and where yield strength is the main design criteria.},
 year = {2021}
}

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TY  - JOUR
T1  - Application of High Tensile (E-550 Grade) Structural Plates for Built-up Columns and Beams in Boiler Structure
AU  - Brajesh Kumar Chaurasia
AU  - Ajay Sharma
AU  - Aditya Singh
Y1  - 2021/10/12
PY  - 2021
N1  - https://doi.org/10.11648/j.ie.20210502.13
DO  - 10.11648/j.ie.20210502.13
T2  - Industrial Engineering
JF  - Industrial Engineering
JO  - Industrial Engineering
SP  - 46
EP  - 51
PB  - Science Publishing Group
SN  - 2640-1118
UR  - https://doi.org/10.11648/j.ie.20210502.13
AB  - In the past Boiler Structure has been designed using mainly carbon steel plates of Grade E250 or E350. This paper presents and analyses the application of High Tensile steel (E550 Grade as per IS: 2062) in Heavy structure like Boiler Supporting Steel Structure. Boiler supporting Structure consists of major weight contribution in Columns and Beams which are stress governed, the objective is to optimize the structural quantity through application of High Tensile Steel with higher yield stress. This paper describes the complete analytical approach adopted in analysis & design, conclusion and recommendation. Latest structural plate rolling technology provides excellent combination of high strength, Toughness and weldability for High Tensile Steel, these properties of steel plate are most critical mechanical properties for steel structure design. The key microstructural control is obtained in the plate rolling mills through on-line heat treatment immediately after accelerated cooling during Thermo-Mechanical Controlled Processing (TMCP). Thermo-Mechanical Controlled Processing technology is recent development applied in latest steel structural plate rolling mills for rolling with thickness up to 120mm. Niobium (Nb) as a micro alloy in the steel enables to achieve a substantial grain refinement, very fine-grained microstructure improves toughness and increases the yield strength. The TMCP process enables the required tensile properties in structural plates with leaner chemical composition. Leaner chemical composition, especially lower carbon content and lower carbon equivalents improves weldability. Improved weldability benefits the fabricator for fabrication of plate fabricated built-up profiles which is the main requirement in Heavy Structure like Boiler Supporting Steel Structure. Detailed analysis and design of typical 660 MW coal fired Boiler structure has resulted in 25% structural weight saving in case of High Tensile steel application (E550 Grade) as compared with commonly used carbon steel (E250/E350 Grade). Also, this analysis concludes that use of high tensile steel should be limited to Columns and Beams only which are stress governed and where yield strength is the main design criteria.
VL  - 5
IS  - 2
ER  -

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