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hello friends i have received a Mill test certificate of 250 mm round bar grade AISI 4130 75 ksi(PSL 3,P+X) which i need to verify if the material comply all the requirements of API 6A 21st Edition. however in the MTC its mentioned the QTC size as 4"x4"x8". NOte that the bar i recieved is...

Guys can any one explain what is restricted pack mechanism,. i first came to know about this from the design requirement in API 6A crossover connector scope. what are the design inputs to be taken to carry out the design calculation

What is restricted packoff mechanism? when it is necessary to include in the design package? is it required when there is change in the bore size(two bores) of a single product?

Recently we had an API Q1 renewal audit And the company which I m working for has a scope for crossover connector(flange x flange with same PCD) and prepared a design package for it. But the auditor pointed out that the Restricted pickoff mechanism was missing in the design package which we had...

I am a qc inspector(beginner) how can I identify the solid bar( 4130) can be used for manufacturing api 16 A/6 A product from mill heat certificate. Can any one explain the method???

Can any one give reference for the design calculation for the stress acting on the drilling spool outlet. What are the factors to be noted?

can any one advise me the method to make design calculation for a blind flange with NPT port ?

as a qc recieving inspector please let me know how to review the mill heat certificate for carbon steel(4145) material and 4130 material and what all need to be checked. lets say for weld neck flange and pipes (4145) and solid bars(4130). thanks

hello friends, i am just a beginner to oil and gas sector . i am qc inspector and right now at the present moment i have to deal with design calculations too. i have a major doubt on api 6A ans 16A calculations. for api 6a double studded adapter i did design calculation using von mises stress...