Hi Mr Pinaki Boxi.
Production test coupons are mandatory as per ASME Sec- VII DIV-2. Please see the generic comparison of the ASME Sec –VIII codes in the following attachment (downloadable at the following web link).
The simulation test gives confidence about the materials , not after fabrication. Hence vessel test coupons are required.
Please look through following DIV-2 clauses with respect Test coupon requirements (with bullets as below).
Thanks..
Pradip Goswami, P.Eng,IWE
Welding & Metallurgical Engineering Specialist
Hamilton, Ontario, Canada
ca.linkedin.com/pub/pradip-goswami/5/985/299
http://www.impactrm.com/glossary/ref/ASME_Section_VIII_Comparison.pdf
- 3.10 MATERIAL TEST REQUIREMENTS
- 3.10.1 GENERAL
- 3.10.2 REQUIREMENTS FOR SAMPLE TEST COUPONS
- 3.10.3 EXEMPTIONS FROM REQUIREMENT OF SAMPLE TEST COUPONS
- 3.10.3.1 Standard Pressure Parts..
- 3.10.4 PROCEDURE FOR OBTAINING TEST SPECIMENS AND COUPONS
- 3.10.4.1 Plates.
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Pinaki Boxi
Sent: Tuesday, October 20, 2015 10:10 AM
To: Materials & Welding; Biplab Pal; chandan.majumdar
Subject: [MW:23760] PTC(Production Test Coupon) Requirements.
Dear Sir/Experts,
We are going to the manufacturing the Sphere for Liquid/unsaturated LPG.Design Code ASME Section -Vlll Div-2, design temperature -34 deg centigrade. Materials are impacted tested at -34 deg centigrade wıth simulated heat treatment. Condition.
I have doubt regarding PTC. As per Section Vlll Div-1 if materials are under impact tested in that case PTC is mandatory.
But as per ASME Section Vlll Div-2 it is required or not please advised me with supporting clause/documents.
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Thanks & Regards
Pinaki Boxi.
*Manager QA/QC*
*ARP Project Site, Turkey*
*Mob :- +905351054384.
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