Sunday, October 24, 2010

[MW:7777] use of B7 Grade bolts in SS JOBS for HYDROTEST

Dear All,
 
is it allowed to use Carbon Steel Bolts Grade B7 and temporary carbon steel blind flange for Stainless Steel job for Hydrotest bolts.
 
construction code is ASME SEC VIII DIV1. HYDROTEST TEST PRESSURE IS 40 BAR.
 
What will the effect OF USING CS BOLTS FOR SS JOB during hydotest in respect to SAFETY/DESIGN  ASPECTS.
 
Pls inform me with respect to code/design reference.
 
Thanks and regards
 
asad azmi
 
 

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