Optimization of Chemical Composition for Pressure Vessel Steel Grade P460NL2 - Industrial Trial Research

Abstract:

The research examines the improvements of mechanical properties of yield strength and toughness for an optimized chemical composition B2 used in industrial trial in comparison with usual chemical composition A1 used for pressure steel grade with higher strength and toughness. For both chemical compositions we rolled three plates with thickness 8, 10 and 12 mm. Rolling mode was a control rolling followed by normalizing heat treatment. Samples from each plate from opposites corner in as rolled and normalized state was taken and tested: spectral analysis, mechanical properties: tension tests, Charpy-V notch impact test. Differences between A1 and B2 chemical compositions are given by the micro alloing elements used and the overall results showed increasing YS and toughness values in the range of euronorm requirements.

• Periodical: Advanced Materials Research (Volume 1143)
• Pages: 45-51
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1143.45
• Online since: February 2017
• Authors: Costel Durduc-Roibu*, Elena Drugescu
• Keywords: Charpy-V-Notch Test, Chemical Composition, Hot Rolling Process, Mechanical Properties, Pressure Vessel Steel

References

[1] EN 10028-3. Flat products made of steel for pressure purpose, (June 2009) 4-5.

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DOI: 10.4236/jmmce.2012.112011

[3] EN 10028-3. Flat products made of steel for pressure purpose, (June 2009) 7-12.

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