Questions about the materials used for boiler heat exchange tubes

2018-12-27 View Original

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Clause 5.1.3 a) of GB150.2-2011: The usage regulations for 10, 20 steel and Q345 steel pipes specified in GB/T8163-2008 shall not be applied to heat exchange tubes. GB/T16508.2-2013: 2 Normative reference documents (the following documents are essential for this standard) include GB150.2 Pressure vessels – Part 2: Materials. However, according to Table 3 of GB/T16508.2-2013 regarding the applicable ranges of steel pipes, grades 10 and 20 are covered; GB/T8163 specifies their main uses – as tubes for heat-exchanging surfaces

Reply #2 2018-12-29

Clause 5.1.3 of GB150.2-2011 has been revised to read: “It shall not be used for the heat exchange tubes in shell-and-tube heat exchangers””； Table 4 of GB/T16508.2-2013 does not include the allowable stress values from GB/T8163.

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Questions about the materials used for boiler heat exchange tubes

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