RE: [MW:8582] phased array vs. RT

Hi:

Standards are not silent about replacing RT with AUT. ASME Section V has
recently published five Mandatory Appendices, two on phased arrays and
three on AUT, to replace Code Case 2235. See ASME Boiler and Pressure
Vessel Code, 2010, Section V Article 4, Mandatory Appendices IV-VIII.
They are "all there".

Yours,

Michael Moles

Senior Technology Manager

Olympus NDT | 48 Woerd Avenue | Waltham, MA 02543| USA

Tel. (1) (416) 831 4428 | Fax (1) (905 248 3546 | Cellular (1) (416)
831 4428 www.olympus-ims.com

Confidentiality Message
This e-mail message is confidential. It may be privileged and is
intended for the exclusive use of the addressee. Any other person is
strictly prohibited from disclosing, distributing, or reproducing it. If
the addressee cannot be reached or is unknown to you, please inform the
sender by return e-mail immediately and delete this e-mail message and
destroy all copies.

Thank you.

Use of e-mail

Our communications to you may contain confidential information or
information protected under solicitor-client privilege. Please advise if
you wish us to use a mode of communication other than regular, unsecured
e-mail in our communications with you.

-----Original Message-----
From: materials-welding@googlegroups.com
[mailto:materials-welding@googlegroups.com] On Behalf Of joshi jaydeep
Sent: December 7, 2010 3:23 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:8559] phased array vs. RT

Standards are silent about the replacement of RT by phased array UT.

My experience says that you will have to proove and convince your
customer / TPI by demenstration that the defect detected by RT is
equally detectable by Phased array UT.

Ultimately it would be decision of your customer whether to allow or
not...

Reg,
Jaydeep Joshi

On Tue, Dec 7, 2010 at 1:30 PM, Navid Navidi <navid_751400@yahoo.com>
wrote:

Hi all,

is it possible to use phased array technique instead of RT for
NDT teast of a pressure vessels.
Does standard allow us to do so?
what is its advantages?

thank you in advance
Saeed

--
To post to this group, send email to
materials-welding@googlegroups.com
To unsubscribe from this group, send email to
materials-welding+unsubscribe@googlegroups.com
<mailto:materials-welding%2Bunsubscribe@googlegroups.com>
For more options, visit this group's bolg at
http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel
views and meant for educational purposes only, Users must take their own
decisions w.r.t. applicable code/standard/contract documents.

--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to
materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at
http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views
and meant for educational purposes only, Users must take their own
decisions w.r.t. applicable code/standard/contract documents.

--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

Re: [MW:34105] SA266 GR4N 4 Cycle SPWHT

Hi, You are correct, Minimum refers to the one cycle for which this part will expose until final work shop PWHT. hence mill test certificate shall include this. Max. SPWHT, refers to additional cycles of heat treatment that are reserved for future repairs during equipment lifetime. Again, these simulated no. Of cycles shall be specified in MTC. The idea is we need to make sure that steel mechanical properties are not compromised upon exposure to multiple repairs (i e 4 cycles in your case). One could say, if steel is subjected to 4 cycles and is ok, then it should by defacto be good for one cycle, yet, this is wrong assumption cause mechanical problems and microstructure of materials varies accordingly based on no. Of cycles for which material will expose. This is apparent in alloy steel and especially for impact test values as an example. In your case, this forged CS with properties before PWHT can be understood to be " as forged" condition (i.e. Wit...

Materails FAQs

Q: What are equivalents for standard Q 235 B (and Q 235 A) for U-channels? (asked by: boris.vielhaber@vait.com) A: DIN Nr. = 2393 T.2, 2394 T.2, EN 10025 W. Nr. DIN 17007 = 1.0038 Design DIN 17006 = RSt 37-2, S235JRG2 (Fe 360 B) Q: What is St DIN 2391 BK material? (asked by: dmcandrews@automaticstamp.com) A: Precision steel tubes, cold-finished/hard. Q: What is C.D.W. Boiler Tube? (asked by: montydude123@yahoo.com) A: Cold Drawn Welded Boiler Tube. Q: WHAT IS W.Nr. 1.4301? PLS TELL US IN EASY LANGUAGUE (asked...

Heat tint (temper) colours on stainless steel surfaces heated in air // Heat tint

Introduction The colour formed when stainless steel is heated, either in a furnace application or in the heat affected zone of welds, is dependent on several factors that are related to the oxidation resistance of the steel. The heat tint or temper colour formed is caused by the progressive thickening of the surface oxide layer and so, as temperature is increased, the colours change. Oxidation resistance of stainless steels However, there are several factors that affect the degree of colour change and so there is no a single table of colour and temperature that represents all cases. The colours formed can only be used as an indication of the temperature to which the steel has been heated. Factors affecting the heat tint colours formed Steel composition The chromium content is the most important single factor affecting oxidation resistance. The higher the chromium, the more heat resistant the steel and so the development of the heat tint colou...

Materials & Welding

Search This Blog