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10228 Super Austenitic Alloy N08367 Service Water Piping Review

Picture for 10228 Super Austenitic Alloy N08367 Service Water Piping Review
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Product Number: 51300-10228-SG
ISBN: 10228 2010 CP
Author: Zachary J. Schulz
Publication Date: 2010
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$20.00
$20.00
The recent spike in oil prices has spurred research for stable energy sources that do not rely on foreign suppliers. Nuclear energy has a renewed focus which requires a closer look at the materials of construction.

Various types of corrosion in nuclear service water piping systems have limited the use of general stainless steels. Due to highly corrosive environments, general stainless steels are being replaced by super austenitic alloys with increased molybdenum content. Examples, such as microbiologically induced corrosion (MIC), have caused failure of 304L stainless steel. Alloy UNS N08367 has been a replacement for 304L stainless steel in main and auxiliary service water piping systems. The improved performance of this alloy has promoted its use in intake screens, piping, and precipitators.

With the current search for more efficient and independent power generation; nuclear power plants have incentive to improve the process and equipment for both existing and new power plants. Globally, the push for alternative power requires better designed plants to withstand the ever increasing corrosive environments. This paper describes current corrosion issues of general 300 series stainless steels in nuclear power plants. An in depth analysis shows how use of the 6 percent molybdenum alloy N08367 in various nuclear applications reduce maintenance costs, increase quality, and improve safety.

The conclusion of this paper and presentation is that 6 percent molybdenum alloys provide enough longevity in to justify increased material and fabrication costs. This paper will show how this development in alloy selection has proved successful in previous nuclear systems as well as the next generation of nuclear reactors.

Keywords: N08367, nuclear, service water piping, microbiologically induced corrosion (MIC), nuclear power plants, stainless steel
The recent spike in oil prices has spurred research for stable energy sources that do not rely on foreign suppliers. Nuclear energy has a renewed focus which requires a closer look at the materials of construction.

Various types of corrosion in nuclear service water piping systems have limited the use of general stainless steels. Due to highly corrosive environments, general stainless steels are being replaced by super austenitic alloys with increased molybdenum content. Examples, such as microbiologically induced corrosion (MIC), have caused failure of 304L stainless steel. Alloy UNS N08367 has been a replacement for 304L stainless steel in main and auxiliary service water piping systems. The improved performance of this alloy has promoted its use in intake screens, piping, and precipitators.

With the current search for more efficient and independent power generation; nuclear power plants have incentive to improve the process and equipment for both existing and new power plants. Globally, the push for alternative power requires better designed plants to withstand the ever increasing corrosive environments. This paper describes current corrosion issues of general 300 series stainless steels in nuclear power plants. An in depth analysis shows how use of the 6 percent molybdenum alloy N08367 in various nuclear applications reduce maintenance costs, increase quality, and improve safety.

The conclusion of this paper and presentation is that 6 percent molybdenum alloys provide enough longevity in to justify increased material and fabrication costs. This paper will show how this development in alloy selection has proved successful in previous nuclear systems as well as the next generation of nuclear reactors.

Keywords: N08367, nuclear, service water piping, microbiologically induced corrosion (MIC), nuclear power plants, stainless steel
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