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Corrosion resistance of Material of the flanges 1

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tranmylinh

tranmylinh

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Dear Sirs,
When I read standard JIS B 2220:2004 that required:
Materials of the flanges shall be the ones given in table 5 or those at least equivalent to them in both the mechanical properties and corrosion resistance. (Table 5 : please see attached file)
I don't now what "at least equivalent to corrosion resistance" means. Please show me. Thanks so much.
 
 http://files.engineering.com/getfile.aspx?folder=498e250e-d554-4cc7-8659-1cc52b4dfcda&file=table_5.pdf
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In my point of view corrosion resistance is determined by the material´s group number refered on the table 5.

good luck

luis
 
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