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ASME STP-PT-025:2009
Extended Fatigue Exemption Rules for Low CR Alloys into the Time-Dependent Range for Section VIII Division 2 Construction
Translate name
STANDARD published on 2009
The information about the standard:
Designation standards: ASME STP-PT-025:2009
Publication date standards: 2009
SKU: NS-1205227
The number of pages: 65
Approximate weight : 195 g (0.43 lbs)
Country: American technical standard
Category: Technical standards ASME
Annotation of standard text ASME STP-PT-025:2009 :
A number of alloys have applications slightly into the creep range that are in cyclic service, such as process reactors. The 2007 edition of Section VIII, Div 2 provides allowable stresses for these materials, which may be controlled by creep properties. However, the fatigue design rules and fatigue exemption rules are not applicable, precluding construction of vessels using these materials at temperatures above 370°C (700°F). This report provides a simplified approach for exemption of low chrome alloys from fatigue analysis that are slightly into the creep range.
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