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EN 12952-2 Flanges and fittigs materials

EN 12952-2 Flanges and fittigs materials

(OP)
Hello,

In table A.1 of Annex A we can found the list of european standardised steels for construction of water-tube boilers.
I want to use P195GH EN 10216-2 for the tubes, and P245GH for flanges, as far as the material is included in EN 10222-2, but is not listed in Table A.1.
If I can't use this material wich one can I use to replace it?
Forgings grades allowed by the table A.1:
X16CrMo5 1
X20CrMoV11-1
X10CrMoVNb9-1
14MoV6-3
11CrMo9-10
16Mo3
13CrmO4-5
P285NH or QH
P355NH or QH
P420NH or QH


Thank you for your help.

RE: EN 12952-2 Flanges and fittigs materials

I am not familiar with EN 12952, but when I see "boilers" P195GH and P245GH do not seem the best choise of materials to me.

What is your PS and TS? I could advice a material choise though, because I have some experience in high pressure high temperature steam piping.

Kelly

RE: EN 12952-2 Flanges and fittigs materials

xgiorg's,

these materials do occur in EN 12952-2:2011

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