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
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