The Mechanical Behavior of a 25Cr Super Duplex Stainless Steel at Elevated Temperature

Bamidaley Ademola Lasebikan; Alfred Rotimi Akisanya; Wiliam F Deans

doi:10.1007/s11665-012-0273-5

The Mechanical Behavior of a 25Cr Super Duplex Stainless Steel at Elevated Temperature

Bamidaley Ademola Lasebikan, Alfred Rotimi Akisanya, Wiliam F Deans

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Abstract

Super duplex stainless steel (SDSS) is a candidate material for production tubing in oil and gas wells and subsea pipelines used to transport corrosive hydrocarbon fluids. The suitability of this material for high temperature applications is examined in this paper. The uniaxial tensile properties are determined for a 25Cr super duplex stainless steel over a range of temperature relevant to high pressure – high temperature oil and gas wells. It is shown that there is a significant effect of temperature on the uniaxial tensile properties. Elevated temperature was shown to reduce the Young’s modulus and increase the strain hardening index; temperature effects on these two parameters are usually neglected in the design of subsea pipelines and oil well tubulars and this could lead to wrong predictions of the collapse pressure. The manufacturing process of the super duplex tubular did not lead to significant anisotropy in the hardness and the ultimate tensile and uniaxial yield strengths.

Original language	English
Pages (from-to)	598-606
Number of pages	9
Journal	Journal of Materials Engineering and Performance
Volume	22
Issue number	2
Early online date	30 Jun 2012
DOIs	https://doi.org/10.1007/s11665-012-0273-5
Publication status	Published - Feb 2013

Keywords

stainless steel
mechanical testing
environmental performance
elastic/plastic behavior

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10.1007/s11665-012-0273-5

Mechanical behaviour of 25Cr SDSS at elevated temperature
Copyright [2013] ASM International. This paper was published Journal of Materials Engineering and Performance, Vol. 22, Issue 2, pp. 598-606 and is made available as an electronic reprint with the permission of ASM International. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplications of any material in this paper for a fee or for commercial purposes, or modification of the content of this paper are prohibited. Doi: 10.1007/s11665-012-0273-5
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Cite this

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title = "The Mechanical Behavior of a 25Cr Super Duplex Stainless Steel at Elevated Temperature",

abstract = "Super duplex stainless steel (SDSS) is a candidate material for production tubing in oil and gas wells and subsea pipelines used to transport corrosive hydrocarbon fluids. The suitability of this material for high temperature applications is examined in this paper. The uniaxial tensile properties are determined for a 25Cr super duplex stainless steel over a range of temperature relevant to high pressure – high temperature oil and gas wells. It is shown that there is a significant effect of temperature on the uniaxial tensile properties. Elevated temperature was shown to reduce the Young{\textquoteright}s modulus and increase the strain hardening index; temperature effects on these two parameters are usually neglected in the design of subsea pipelines and oil well tubulars and this could lead to wrong predictions of the collapse pressure. The manufacturing process of the super duplex tubular did not lead to significant anisotropy in the hardness and the ultimate tensile and uniaxial yield strengths. ",

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The Mechanical Behavior of a 25Cr Super Duplex Stainless Steel at Elevated Temperature

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