[English] WPS and PQR - Basic Concept explained

What is Welding Procedure Specification (WPS) and Procedure Qualification Record (PQR) and relation between WPS and PQR explained with the help of flowcharts and tables as per ASME BPVC section IX.

[madhabmallik]

You are awesome sir..
After many years I found a true mentor i.e, you. Your teaching approach is excellent. You just cleared my prolonged doubt in this video which no other professional could do in my job life of 8 yrs. Thank you very much for your effort to help people like us. I'll definitely go through all your videos.

[mohdfurkhan]

Thank you for explaining so simply sir, God bless you

[RohitPanchal]

Very Well explained sir, I must say you have a unique style of teaching things.
Thanx alot, your videos are very helpful in getting the basic concepts right.

[miguelfranklin]

Grate presentation. Just Quick question: fillet welding a lap joint between A653 14ga sheet metal to 3/8” structural steel A992 can WPS following D1.1 prequalified joints be used. If it is not acceptable, What should be the directions to follow in order to get the WPS?!

[GaneshPatil-dnhx]

What a great explanation, you method of teaching is easier to understand. Thanx sir.

[nandkishorkumar]

Your welcome sir. It's very important knowledge for any welding inspector or welding engineer.
And
Thank you so much.

[GaneshPatil-dnhx]

Great really liked your detailed teaching approach.

[MEIGNITER]

It's very helpful sir .
Please recommend a book for WPS and PQR. I shall very grateful to you.

[panneerselvameswaran]

Can you make video for Aws d1.1 essential and non essential variables?. Thanks

[AhmadKhan-fkro]

I am very thankful to you sir
From Pakistan

[shanmugasundaramsubbiah]

GOOD EXPLANATION .. THANK YOU VERY MUCH SIR....

[aaradhanaaaradhana]

Sir your videos are very help full to me ..sir please make video about welding protocol video

[sinu]

nice video . Need to explain in video, details of abbreviation used welding variable of WPS . Example Phi = change, Uphill, downhill, forehand backhand, addition and deletion

[pcastrejon]

thank you for your video !! your website really helps out.

[mgrhjqm]

Friend, Can you explain more detaled how to prapare preliminary WPS, how to find range of P numbers, group numbers, how to choose elecrtrodes, current . Thank you

[AbhishekSingh_suryavanshi]

Sir u r doing a great job with ur phenomenal videos..

[vvpk]

very well explained sir... good info in simple words..

[umamaheshboddi]

Excellent explanation sir
Thank you so much sir 🙏

[crankvspiston]

Sir, please clear my doubt below.
1. During WPS/ PQR and WPQ test coupon welding and testing at NABL lab . Is it amendatory to conduct by TPIA. Is it possible to conduct both by CSWIP engineer and approve it.

[surendraghate]

I saw your few videos. You have explained nicely but in my opinion, your explanation can be understood to those people who has spent 3-4 years in the field of coded vessel fabrication. Also it lacks structural welding requirements. It also does not explain category of welds as well as most important joint efficiency. You may say that these parameters are design centric but it is not so.


Any welding engineer should have basic knowledge of metallurgy as well as philosophy of Section VIII Div 1. Finally any WPS should meet the requirement of construction code and not of Section IX. Section IX gives guidelines and not directions / requirements to meet construction code.