[MW:5065] FIttings P235GH & P265GH material for -10 deg C ?

[Pisat, R. (Rahul)]

Hello all,

The carbon steel Pipe ( EN 10216 & EN10216 - grade P325GH & P265GH ) & flanges ( EN10222- P245GH) are defined till  -10 deg C.

but for Fittings, grade P235GH and P265GH material, are defined are defined only upto Minimum temp. of 0 deg C as per EN10253 table 9.

Is it allowed to use these fittings materials for service at -10 deg C ? if yes then what additional we must take into consideration.

or do we have to go for low temperature material of P355N or P335NH material grade ?

waiting for your replies

Kind regards

Rahul

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[Bathula Raghuram (Mumbai - PIPING)]

What's is your design code and MDMT?

If you are using EN13480 (refer para para 4.1.6 of part 2), which meets ESR 7.5 of PED 97/23/EC, In my opinion you can use this material with impact testing as per Annexure B at MDMT (-10 °C)

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From: material...@googlegroups.com [mailto:material...@googlegroups.com] On Behalf Of Pisat, R. (Rahul)
Sent: Tuesday, May 04, 2010 7:53 PM
To: material...@googlegroups.com
Subject: [MW:5065] FIttings P235GH & P265GH material for -10 deg C ?