Skip to main content

Re: [MW:35778] Request for Guidance on PQR Update

You can make a new, "Supplementary PQR" as it is safer and cleaner from a compliance and transparency 

standpoint. You prepare a new PQR document with all the welding parameters repeated from the original PQR,

plus the new hardness test results.

            

You can add a note referencing the original PQR number (i.e., "This PQR was performed under the same welding

conditions as PQR-001 (provide actual details) to incorporate the hardness testing per client requirements").


C Sridhar.


On Thu, 28 Aug 2025 at 12:21, pankaj pachahara <pankajpachahara@gmail.com> wrote:
Dear Experts,

We have a qualified PQR (P1 to P8) that doesn't include hardness testing. We're submitting this PQR for a new project, but the client requires hardness testing. To address this, we plan to:

1. Create a new PQR following the same parameters as the original PQR.
2. Conduct hardness testing and add the results to the new PQR.

We're unsure about the best approach to incorporate the hardness test results into our existing PQR documentation. We have two options:

Option 1- Add the hardness values to the original PQR as Addendum-1.
Option 2- Create a new PQR that includes all the previous data and name it as a Supplementary PQR.

Could you please guide us on the best approach to take?

Best regards
Pankaj Choudhary

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
To view this discussion visit https://groups.google.com/d/msgid/materials-welding/CAJF_nWPufvGG-sFFjNLMxN8QYd3Dqo4DHA%2B8r_ocT1_7A2SbFA%40mail.gmail.com.

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
To view this discussion visit https://groups.google.com/d/msgid/materials-welding/CAHo%3DYihXZ-B9EjLHi%3D%3DXq5JkE2EDs4Q5s2GLLV444PRLvC-s5Q%40mail.gmail.com.

Comments

Popular posts from this blog

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...

Re: [MW:10788] ON PLOT PIPING & OFF PLOT PIPING

Piping systems involved for the flow lines and gathering lines from the well head isolation valve to the production facility or processing plant isolation valve are determined as OFF PLOT. ON PLOT defines piping system in the processing plant and production platform. ANSI/ASME B31.4 applies for off plot piping system. B31.4 allows the use of either API 1104 or ASME section IX (as appropriate). However, occasionally, a very small system such as piping within 500 feet of a processing plant (some client also said 400 feet) may be declared B31.3 rather than B31.4. When B31.3 is invoked, only ASME Section IX is used. before you decide which code to use for welding procedure and/or welder qualification for pipe welding, you have to know the design and construction code applicable to the system. Please read far enough into scope and diagram illustrating the application of either B31.3 and B31.4 hope this helps rgds 2011/4/21 pradip kumar sil < pradipsil@gmail.com > Dear all, ...