Tuesday, July 28, 2015

Re: [MW:23224] reg: Test coupon thickness range

Your thickness divided by 2

Sent from my BlackBerry 10 smartphone.
From: Prince C thomas
Sent: Τρίτη, 28 Ιουλίου 2015 - 06:10
To: Materials & Welding
Reply To: materials-welding@googlegroups.com
Subject: [MW:23220] reg: Test coupon thickness range

Dear all,

 In our district cooling CS ( ASTM A106 Gr,B) pipeline project, pipe wall thickness is from 3.2 mm to 20.62 mm.  and our WPS is qualified and now we have to conduct welder qualification test.So what is the minimum   test coupon  thickness we should select so that welder can weld upto 20.62 mm thickness pipe during production.

WPS Details:

Welding process: GTAW & SMAW

Base metal thickness range : 5 - 22 mm

Weld metal groove for GTAW ; 6mm and SMAW - 16 mm



Prince C Thomas

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