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ASTM A182 INSTEAD OF ASTM A105

ASTM A182 INSTEAD OF ASTM A105

ASTM A182 INSTEAD OF ASTM A105

(OP)
hi there,

please can someone advise me as to wheather it is ok to use a valve of standard ASTM A182 instead of ASTM A105.The pipe line is carbon steel.I realise that A182 is for higher temperatures  and will do the job but I am not sure if it is ok to mate the A182 flanges of the valve with A105 flanges.

RE: ASTM A182 INSTEAD OF ASTM A105

Stuarte,

SA-182 and what grade? F1? Or are you into the Cr-Mo steels?  You didn't say.
Anyway, assuming you are refering to the C-1/2Mo steel, I don't see there isn't any problem with mating this to SA-105.  You should check your pressure-temperature rating in ASME B16.5 for material class 1.1 vs 1.5.  

Exactly, what is your concern?

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