Hello everyone,
I am searching the hardness number of SA 178-C material.Its not in ASME part II-A.(or maybe its somewhere there)
I have a requirement to take hardness test on this material and I just want to know the maximum and minimum hardness number limit.
Kindly point me to a...
Thanks for the comments.
I'm actually confused by my client about his requirements and I just don't know how to handle him.I don't want to refused to comply but what I'm afraid is that the "certificate" might create a conflict or legal dispute in the future.
For instance,I found out that the...
Dear All,
Good day!
Kindly give me your thoughts about issuing a piping certificate after inspection.
I have a client asking for a certificate after inspection of an in service piping.
The certificate shall contain parameters stating that the piping is fit for service for a certain duration...
Dear All,
I have background in inspection of in-service pipelines tanks and vessels. Currently API 653 certified. I'm planning to take API 510 and 570 but there are too much people in this field as I noticed. I want to take the API 1169 but I'm not quite sure about employment in this field...
weldstan,
I'd like to give you the percentage of the alloy contents but unfortunately I don't have the instrument now.
Yes you are right maybe it needs calibration since the instrument looks very old already and not sure when was the last time
it was sent for re calibration.
Thanks a lot!
b.lawn
I greatly appreciate your replies.
I'm in trouble here to be honest with you guys.Our metallurgist had left the company and often I was tasked to this PMI job.(which I did not expected)
I'm actually testing our materials here in our facility just to see if our instrument is working fine and...
Dear All,
Just want to ask something about PMI.I recently used a PMI machine or tool,to identify sets of pipes and plates stocked in our facility.
I found out that the machine will identify the stainless steel properly,with the grade and alloy percentage displayed on the screen.
Now when it...
I didn't notice that you're actually asking which edition is better to use or read.
I recommend that you use the latest or current edition,because there are some addendum and revisions from the past one.
For you to know more on storage tank,locate a text book for a better introduction,applications and many more.
if you have concern about designs,erections and perhaps inspection,you can use API 650,and you can also refer to AWWA codes for water storage tank.cheers,b.lawn
Dear All,
Guys kindly help me out here. I'm a little confused on terms and definitions used in the field of inspection.
In API 653,other people called it "in service inspection"if you are inspection a tank which is not shutdown.And "out of service inspection" if the tank is shutdown.Now I...
Dear Duwe6,
Thanks for the feedback.So if it is a Basic inspection premise,it could probably written in a publication or in a reference standards.
Actually there are clients who really dig so deep on my inspection report so I really want to make sure anything presented
on papers is referenced...
Dear All,
In the evaluation of an existing tank for max.allowable internal pressure,there's a formula used by other people
which is:
t yn=thickness of the tank component under consideration at the next inspection at twice the calculated corrosion rate,which is
t act-(2*Cr*Yn)
I just want to...
Hi stevenloo70,
I just took the API 653 last Nov 26 2014.I dont know of any site but I'll give you a tip.
Read all the body of knowledge.Try practice on computations of remaining life and other shell calculations,hydrostatic height,etc..
Also try to familiarize or learn how to review WPS and...
Dear All,
Just want to clear something.Why does the evaluation of edge settlement is separated from the evaluation of ring wall foundation?
Assume we have a foundation ring settles and so was the edge of the bottom plate(which also affects the shell),what criteria for evaluation will govern?If...
Dear All,
I'm looking for a software for plotting optimum cosine curve in evaluating tank settlements.
Anyone who can direct me to where I can get one of this?
Thanks a lot!
regards,
jb
Its on a direct plate actually.Its on the last course.I'm just afraid the crack might propagate so I decided to grind the crack then
weld it then flush grind it.Yes NDT shall be carried before and after the repair.I don't see any thickness issue,its just the plate sustained crack(the reason I...
On what side should a patch plate be installed on a shell?I have a tank to be repaired.There's a crack on the shell about
1 meter below the roof.Im planning to grind crack wide open then weld it(build up)and patch it on the product side.
Im not so sure if this method is allowed.I cant find...
par.5.1.5.7 d "The bottom or annular plates shall be sufficient to provide a minimum 13mm (1/2 inch) from the toe of the fillet weld referenced in 5.1.5.7 c to the outside edge of the bottom or annular plates."
The above paragraph states that minimum of 13mm should be provided but paragraph...
