Skip to main content

Re: [MW:35066] Re: API 650 Bottom Plate Distortion

50mm acceptable, lets know if it tank is in service?, refer api 653., by the way bottom plate distortion refer as settlement, better to refer with correct terminology.

On Friday, June 7, 2024 at 9:20:00 PM UTC+3 agum...@gmail.com wrote:
Hello it depend of tank diameter:

API 650 2021  7.5. Roundness

 

Radii measured at 0.3 m (1 ft) above the bottom corner weld shall not exceed the following tolerances:


Tank Diameter m (ft)


Radius Tolerance mm (in.)


< 12 (40)                                                                              ± 13 (1/2)

From 12 (40) to < 45 (150)                                                   ± 19 (3/4

From 45 (150) to < 75 (250)                                                  ± 25 (1)

75 (250)                                                                           ± 32 (11/4)

El jueves, 6 de junio de 2024 a la(s) 3:52:12 a.m. UTC-6, Abd Ur Rehman escribió:
how much tolerance is acceptable in circumference (API650) storage tanks.

On Wed, May 29, 2024 at 12:11 PM Anand ch <chana...@gmail.com> wrote:
Dear Abd Ur Rehman,

Out-of-plane distortion equal to 1 percent of the tank radius is considered acceptable."
While that's not an API requirement, that should be a measure of industry standard, 
and that plate distraction not affected on length of the plate that is acceptable range means it will accept the bottom plate 

On Saturday 25 May, 2024 at 11:06:14 am UTC+5:30 Abd Ur Rehman wrote:
Hello everyone hope u all be fine 
my question is that , as per ur experince how much API 650 Bottom Plate Distortion is acceptable .

--
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-weld...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/b4bfa48a-a6f2-4dc8-b271-1588e463b79fn%40googlegroups.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 on the web visit https://groups.google.com/d/msgid/materials-welding/2a227aeb-d3fe-4002-a458-8adede46866fn%40googlegroups.com.

Comments

Popular posts from this blog

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...

[MW:5202] RE: 5200] NDT after PWHT

------------------------------------- Interpretation:  I‑89‑14 Subject:         Section I (1986 Edition, 1987 Addenda), PW‑11,                  NDE Prior to PWHT Date Issued:     December 15, 1988 File:            BC88‑393   Question: Does PW‑11 require that NDE be performed on welds after they have been subjected to the postweld heat treatment required by PW‑39?   Reply: No, unless the conditions described in PW‑11.2.2 exist. ---------------------------------------------- Interpretation:  VIII-1-98-09 Subject:         Section VIII, Division 1 (1995 Edition, 1996 Addenda); NDE                 ...

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...