Skip to main content

[MW:12683] Re: IGC test as per ASTM A 262 - 02a Practice E

By Materials & Welding
Dear Sir,
Thanks for your reply . here i have another quary :
Our client specification is silent about the IGC test for the material ASTM - A 312 TP-321. ASTM A 262 shows  sigma phase in titanium or colombium stabilized alloy which may or may not be visible in micro structure , can result high corrosion rates in both the nitric acid  & ferric sulfate sulfuric acid solution.
Is it acceptable for establish the PQR  ASTM A 262 PRACTICE E for the material TP-321 which contains   titanium .

Regards
Pradip


On Sat, Oct 15, 2011 at 6:46 PM, pgoswami <pgoswami@quickclic.net> wrote:


Pradip,

Please see the attached specification for your reference.Look through the highlighted texts.Green ones are of more relevance.Clause 31 explains the acceptance criteria.

If you have any concern feel free to drop a line.

In a nutshell, 24 hrs boiling in acidified CuSo4 solution in as welded or sensitized condition, followed by bending(Mandrel dia, 3t).Absence of any  crack macro or micro is the indication of passing the test.

Thanks.

Pradip Goswami,P.Eng.IWE
Welding & Metallurgical Specialist & Consultant
Ontario,Canada.
Email-pgoswami@sympatico.ca,
pgoswami@quickclic.net



-----Original Message-----
From: pradip kumar sil [mailto:pradipsil@gmail.com]
Sent: Saturday, October 15, 2011 4:44 AM
To: materials-welding@googlegroups.com
Cc: pgoswami@quickclic.net
Subject: IGC test as per ASTM A 262 - 02a Practice E

Dear Sir,
Can any boby tell me what is the acceptance criteria IGC test as per ASTM A 262 - 02a Practice E &  briefing about the test regards Pradip

--
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.

Comments

Post a Comment

Popular posts from this blog

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

By Materials & Welding
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...
Post a Comment
Read more

[MW:5202] RE: 5200] NDT after PWHT

By Materials & Welding
------------------------------------- Interpretation:  I‑89‑14 Subject:         Section I (1986 Edition, 1987 Addenda), PW‑11,                  NDE Prior to PWHT Date Issued:     December 15, 1988 File:            BC88‑393   Question: Does PW‑11 require that NDE be performed on welds after they have been subjected to the postweld heat treatment required by PW‑39?   Reply: No, unless the conditions described in PW‑11.2.2 exist. ---------------------------------------------- Interpretation:  VIII-1-98-09 Subject:         Section VIII, Division 1 (1995 Edition, 1996 Addenda); NDE                 ...
Post a Comment
Read more

Materails FAQs

By Materials & Welding
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...
21 comments
Read more