Thankyou for your response.
I don’t want to come across as uneducated but in the case where API stated:
The general wall Tolerance for welded pipe >.591 wall is +-1.5 (.060)
What would the + or - tolerance equate to on .750 wall??? What is the formula. As far as I know it doesn’t carry the...
Greetings everyone,
The general consensus is that pipe carries a + or - 12.5% wall thickness tolerance and has been around for 50 years.
I am currently dealing with SAWL 36 x .750 wall API 5L x52 pipe. I am being asked to prove that the + or - 12.5% wall thickness tolerance is in play for...
Been scouring the book for 2 days and did not see that!!!!
Thank you very much!
-=Fred=-
Vass Pipe API Line Pipe Industry Leader
People do what you inspect, not expect!
I am in possession of some 2" xs API 5L X52 PSL 2 Hyundai the producing mill did not report the CVN results on the MTR.
I am being told that 4" and below does not have to show results on the MTR. But I would need to prove this to our customer.
Table 22 gives the requirements per size for...
Thank you SJones, here is/was the outcome.
Industry standard when it comes to API 5L carrying the 2B cert from the mill, simply states, "Roundness and Straightness accordance to API 2B"
and NOT to "API 2B" whole specification.
Once Customer realized and was told this fact they backed off...
Hello Everyone,
Have a huge project calling for us to use floor stock inventory. The project calls for API 5L X52 PSL2 EN10204 Cert 3.2 with API 2B
The company is willing to allow us to use independent inspectors to meet the 3.2.
The MTR's that do not state API 2B we are going to certify the...
Thank you EdStainless I do appreciate your wisdom and insight!
-=Fred=-
Vass Pipe API Line Pipe Industry Leader
People do what you inspect, not expect!
Here is what I told the customer and they have agreed:
In reference to their request for A252/A252M Grade 3 (Mod) 50 KSI Min YS.
ASTM A252 does not carry such a designation. It only carries designations: A252 Grade 1, 2 or 3.
The mills will sometimes designate “M” when one or two elements...
We are supplying pipe on a fast track job that requires material from stock.
Customer has requested ASTM A252 Gr 3 with 50 KSI min yield or better.
After placing the order they are requesting that all MTR's state "M" or modified due to the 50 KSI YS.
No where in the spec is there any...
Seeking Hydro of 100% SMYS @ 70KSI yield.
API 5L 46th ed. L450 (5LX65M) PSL 2 36" x .562wt Actual Yield on MTR is 72,300
Mill hydro'd at 2230# for 10 seconds
What hydrostatic test pressure would be required to meet 100% SMYS @ 70KSI yield?
As always, thanx everyone in advance.
-=Fred=-...
So a general consensus is don't do it...
This is my personal shop at home and rather than a gantry(portable crane) I thought about just installing a beam...
Heaviest load probably a 500# car or boat motor... but was really interested in max load not a general load.
Thanx everyone
-=Fred=-...
Have a metal building erected with 3 x 3 x 14ga a500 tubing don't know if it's grade A or B.
The roof pitch is 3:12
Rather than installing a gantry crane I'm considering installing a beam off the trusses.
The building is 36' x 20' and the trusses are spaced appox 5 feet apart in the 20'...
Thank You Sir I do agree with your evaluation...
My customer will have to pay for their mistake.
-=Fred=-
Vass Pipe API Line Pipe Industry Leader
People do what you inspect, not expect!
I would have not substituted without prior approval had the pipe company we sold the pipe to specified "B" on their order.
They only stated API 5L and when questioned they said ignore the MESC it's not important.
QUESTION: Is that actually meaning X52 is unacceptable above 400 degress or is it...
The engineer is stating per ASME B31.3 Table A-1 does not denote an allowablle stress factor for X52 in the table...
The Material is US made DSAW API 5L X52 PSL II 42" std (.375)
We substituted X52 for grade B and he is not allowing it?
He Writes:
HI Fred
I have communicated this...
Thank you everyone for clearing this matter up but it certainly isn't advantageous to a pipe distributor such as myself.
Here is the reason why ... Pipe sitting on a rack in South Houston with proper storage would last 3 to 5 years sometime 10
without the encroachment of what API terms...
First off I apologize, I stated 45th ed. read wall tolerance + - 0,7 (0.028)t
When in fact 45th ed. did NOT have a t for HFW pipe.
So given the response above... that being absolute ... .236 to .591 wall would carry a tolerance of + or - .028
ie; .236 would calculate to + or - 11.8%...
API 45th edition calls out a wall tolerance on page 145 table J.4
it simply states
wall tolerance + - 0,7 (0.028)t
should I do a calculation here based upon my given wall to come up with a wall tolerance? If so what is the calculation?
OR
Is it my wall + or - .028
BTW my wall...
Just a quick update... our customer submitted MTR for approval to their customer and it ended up being approved.
Thanx everyone for your help and input.
-=Fred=-
Vass Pipe API Line Pipe Industry Leader
